Terms of Service.

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This English version is provided for convenience. The German version (Deutsch) is binding; in case of discrepancies, the German version prevails.

These Terms of Service govern your use of the Hadaff app at hadaff.de and the native Android app. By creating an account or using Hadaff, you agree to these Terms. For information on what data we collect and why, see our separate Privacy Policy — this document focuses on the rules of using the service, not on data handling.

This document is a description of the rules for using Hadaff. It does not constitute individual legal advice.

1. About Hadaff

Hadaff is a free app designed to help you combine daily productivity, Islamic spirituality, and habit tracking. Its features include Quran reading with progress tracking (Khatma), Athkar, daily habit creation and tracking with streaks, a Prayer Tracker with prayer statistics, a Tasbeeh (dhikr) counter, prayer-time notifications based on your location, social features (posts and replies, stories and highlights, direct messages, following other users, public profiles), and an AI assistant ("Hadi") for Islamic questions.

Hadaff is operated by an individual, Mostafa Rashid, not a company.

2. Eligibility / Age Requirements

You must be at least 18 years old to create a Hadaff account. You must enter your correct date of birth when you register. We do not independently verify your age beyond the birthdate you enter.

3. Your Account

You are responsible for keeping your account credentials secure and for all activity under your account. You agree to provide accurate information during registration.

Every account has a username. If you don't choose one, we generate a random one for you; you can change it once every 30 days from Edit Profile. Your username is public and visible to other users. Usernames that are offensive, misleading, or that impersonate another person, Hadaff, or its staff are not allowed and may be changed or removed by us.

How the contract is concluded. The contract for using Hadaff is concluded when you create an account: you enter your details, accept these Terms and the Privacy Policy, and confirm your email address (or sign in with a one-time code). Before you finish, you can correct any entry in the form fields or go back a step. The contract languages are German and English; in case of discrepancies, the German version prevails. We store the contract text: these Terms are available at any time at hadaff.de/terms (German: hadaff.de/terms-de), and we send them to you, together with the Privacy Policy, in the welcome email after you sign up.

You may only upload profile pictures that you own the rights to or are otherwise permitted to use, and that do not show another identifiable person without their consent.

4. Acceptable Use

Hadaff is provided for your personal, non-commercial use. Organisations (for example mosques, associations or businesses) may use an organisation account and affiliations (Section 6) to present themselves and their community; advertising, selling or spam beyond that is not allowed. You agree to use it lawfully and respectfully towards other users. You may keep more than one account (for example a personal and an organisation account, which you can switch between in the app), but not to get around a suspension or restriction, to deceive others or to fake reach.

5. User Content

"User Content" means anything you add to Hadaff: your profile (picture, display name, username, bio, links), posts and replies, photos and videos, stories and highlights, direct messages, and Athkar lists you share or post. You retain ownership of your User Content, but by adding it to Hadaff you grant us a non-exclusive, royalty-free license, limited to the duration of your use of Hadaff, to store, display, and process it as needed to operate the features you use — for example, showing your post to the audience you picked, converting a video into a format that plays on every phone, or showing public posts on hadaff.de while your account is public and "Show on hadaff.de" is switched on. The license ends when you delete the content or your account, except for copies other users made themselves (such as a repost they keep, or an Athkar list they added to their own collection) and backups that are deleted on their regular schedule.

You may only share content you are entitled to publish, and you are responsible for your User Content. If third parties bring justified claims against us because of your content, you indemnify us against them insofar as you are responsible for the infringement ("soweit du sie zu vertreten hast"); this includes reasonable costs of legal defence. Do not post photos or videos of other people without their consent, and label content you made with AI tools as AI-generated when the app offers that option.

6. Social Features

Hadaff lets you follow other users, be followed, set your account to public or private, block accounts, and report accounts or content that violate these Terms. If your account is public, your username, profile picture, and (depending on your settings) parts of your activity may be visible to other users, including people you don't follow. If your account is private, your follow relationships and related activity are limited to accounts you approve.

Posts, stories and highlights. You choose who can see each post or story: everyone, your followers, friends, your close friends, or only you. Stories disappear after the time you choose (12, 24 or 48 hours) unless you save them to a highlight on your profile. If your account is public and "Show on hadaff.de" is on, posts and stories for everyone are also shown on our website, where visitors can see them without an account; you can turn this off at any time in Settings → Privacy.

Collab posts. You can invite one person to a public post; it appears on both profiles with both names once that person accepts. The invited person can decline or leave later, and the author can delete the post.

Direct messages. Messages are visible to the people in the chat. People who don't follow you may need to send a message request first. Photos sent in chats are deleted automatically 60 days after they were sent. "Delete for everyone" removes a message for both of you, including from the chat preview, a pin, quotes in replies, starred copies and its file; "Delete for me" only hides it for you. You can report a single message at any time (it is then sent along for the review), block a person, or delete a chat.

Affiliations. Accounts can be linked to a verified organisation account (for example, a mosque, association or business) when both sides agree; the link is shown on the profiles and can be ended by either side.

You agree to use social features respectfully: do not use following, blocking, reporting, or nicknames to harass, impersonate, or mislead other users. We may remove social connections or restrict social features on an account that is used to violate these Terms.

7. AI Features

You are interacting with an artificial intelligence system, not a human being. In accordance with Article 50 of the EU Artificial Intelligence Act, we clearly inform you that "Hadi" is an automated AI system. It is not a certified Islamic scholar (Alim), Imam, or religious authority, and its responses do not constitute a religious ruling (fatwa).

The Hadaff AI feature is powered by OpenAI's models and intended for general Islamic guidance only, subject to a daily usage limit shown in the app. It can make mistakes, misquote sources, or produce inaccurate information. It should never be treated as a substitute for verified Islamic scholarship or a qualified scholar, and must not be relied upon for medical, legal, financial, or safety-critical decisions.

Your messages to Hadi — including any text and images you send — are transmitted to OpenAI for processing and stored in your account so you can continue the conversation later; see our Privacy Policy for details. Please do not share sensitive personal information (such as health data, financial details, or information about third parties) in the AI chat. You may rate individual responses (thumbs up/down) or report them; we may use this feedback to improve the service. Hadi's answers are checked automatically with OpenAI's moderation service after they are written; a clearly harmful answer is replaced by a notice. Please check important answers yourself; we are liable for damage only under Section 17.

Consent before the first question. Because your questions can reveal your religious beliefs and are sent to OpenAI in the USA, Hadi only answers after you have given your explicit consent in the app; you can withdraw it at any time in Settings. Hadi's answers are AI-generated. If you share or publish an answer outside the app, do not present it as written by a person, and do not remove or alter any notice or technical marking that shows it was generated by AI.

8. Habits & Tracking Features

Hadaff lets you create and track personal habits, with names, icons, colors, and an optional goal, and calculates streaks based on your logged completions. This is a personal productivity tool: we do not verify or guarantee the accuracy of any streak or statistic, and a technical issue, sync delay, or bug could occasionally affect a streak or history. Habit data you create is yours to track — see our Privacy Policy for how it's stored and for how long.

9. Religious Features

Hadaff offers several optional Islamic practice tools: the Prayer Tracker, Tasbeeh (dhikr counter), Khatma (Quran reading progress), and Athkar (daily remembrance). These are personal tracking and reminder tools, not religious authorities. Using them is entirely optional, and using them does not make Hadaff, or any output the app calculates from them (such as a streak), a source of religious guidance.

Prayer times shown in the app are calculated using the location-based method described in Section 15 and are provided as a convenience; you remain responsible for confirming prayer times through your own local mosque or trusted source where accuracy is critical.

Quran recitations used in the app are sourced from EveryAyah.com, a free, non-commercial platform, and are provided for personal, non-commercial use only. All reciters and their recordings remain the intellectual property of their respective owners. Reciters featured in the app include:

• Mishary Rashid Alafasy
• Abdul Basit Abdus Samad
• Abdurrahman As-Sudais
• Abdullah Basfar
• Abu Bakr Ash-Shaatree
• Ali Ibn Abdur-Rahman Al-Hudhaify
• Hani Ar-Rifai
• Mahmoud Khalil Al-Husary
• Muhammad Ayyoub
• Muhammad Jibreel
• Nasser Al-Qatami
• Saad Al-Ghamdi
• Yasser Ad-Dussary
• Khalid Al-Qahtani
• Ahmed ibn Ali Al-Ajamy
• Ibrahim Al-Akhdar

Quran text is sourced from the Quran.com API and AlQuran.Cloud API, both providing open access to Quran data for non-commercial use. The Uthmani text follows the Hafs narration of the recitation of Asim. We do not claim ownership over this content — all rights belong to their respective owners.

10. Prohibited Activities

The Community Guidelines are part of these Terms and explain the following rules with examples. You agree not to:

• Use Hadaff for any illegal purpose
• Attack the app, its backend or its services, get around security measures, reverse-engineer them, read them out automatically (for example scraping profiles or usernames), or disrupt them with excessive requests
• Share content – including in your profile, username or messages – that
  • breaks criminal law, for example incitement to hatred, insults, threats, calls to commit crimes or the use of banned symbols,
  • glorifies or calls for violence or terrorism,
  • is pornographic or sexualises minors,
  • demeans people because of their religion, origin, skin colour, gender, disability or sexual orientation,
  • exposes other people, for example by publishing private contact details, addresses or images without consent,
  • contains knowingly false statements of fact about people,
  • spreads fraud, phishing, malware or unsolicited advertising (spam), or
  • infringes others' copyright, trademark or personality rights
• Use the AI assistant to generate content described in the previous point, or instructions for crimes, weapons or self-harm, or to bypass its safety rules
• Harass, impersonate, or intentionally deceive other users through social features
• Create multiple accounts to evade a restriction or to abuse the service (e.g. rate limits, reporting, or social features)

11. Moderation

To keep Hadaff safe and operating properly, we may review content and account activity that is reported to us or that we otherwise become aware of, and we may take action — including removing content, restricting features, or suspending or terminating an account — where we reasonably believe these Terms have been violated. We may also investigate suspected abuse, security incidents, or technical issues as needed to operate and secure the service; see Section 3 of our Privacy Policy for how administrator access is limited and logged.

We do not monitor private user content (such as your Prayer Tracker entries or AI chat history) on an ongoing or arbitrary basis. Moderation and administrative access are limited to what is reasonably necessary for support, safety, security, and legal compliance.

How to report content (notice and action). Anyone can tell us about content or accounts they believe are illegal or break these Terms: in the app via "Report" on the specific post, reply, story, chat message or profile, without an account through the form at hadaff.de/report-content, or by email to support@hadaff.de (please include the link or username, what the problem is, and why you believe it is illegal or against these Terms). A report refers to the specific content; for a reported chat message, that message is sent along for the review. Reports about a danger to someone's life or safety ("Someone may be in danger") are reviewed first. We review every report in a timely, careful and objective manner and tell you our decision by email, including how you can object to it.

How decisions are made. Every decision to remove content or to restrict, suspend or terminate an account is made by a human reviewer. We use the following automated tools: (1) an AI check of every new public post (its text, every photo, and the cover and three still frames of a video) and of every reply under a public post with OpenAI's moderation service, which flags possible hate, harassment, violence, sexual, self-harm or illegal content for a human reviewer; (2) a risk score for active accounts based on activity signals (such as account age, posting rate, links, copied texts, reports and blocks), which can apply stricter rate limits for 24 hours; (3) rate limits on posts, comments, follows and messages to stop spam; (4) a check of the AI assistant's answers with the same moderation service (Section 7); and (5) a list of blocked words and hashtags kept by our team: a post or reply containing one of them cannot be published, and searching for one shows a notice instead of results. Apart from this list and the temporary hiding described below, none of these tools removes content, hides it, or suspends an account on its own — a person always decides. Details are in Section 2.6.2 of our Privacy Policy.

Temporary hiding of clear cases. If the AI check finds that a photo or video in a public post very likely shows sexual content, content that puts minors at risk, or graphic violence, the post is hidden from everyone except you right away, until a person on our team has checked it (usually within 24 hours). Nothing is deleted and no account is restricted by this check alone. You receive a statement of reasons by email that says an automated system was used. If the post is fine, it becomes visible again as before; if it is removed, you are told why and can object as described below.

Statement of reasons and objection. If we remove your content or restrict or deactivate your account, we tell you by email what we decided, why, and on which rule the decision is based — unless the law forbids it or the content is deceptive high-volume spam. You can object within 6 months by writing to support@hadaff.de; we will review the decision again and tell you the outcome. You may also use the out-of-court dispute settlement bodies and courts available under the EU Digital Services Act.

Terrorist content and threats to life. Terrorist content is not allowed on Hadaff. We remove or disable access to terrorist content within one hour of receiving a removal order from a competent authority under Regulation (EU) 2021/784; our point of contact for such orders is support@hadaff.de. If we become aware of information that gives rise to a suspicion that a criminal offence involving a threat to the life or safety of a person has taken place, is taking place or is likely to take place, we inform the competent law enforcement or judicial authorities (Art. 18 Digital Services Act).

12. Account Suspension / Termination

We may suspend or terminate an account that violates these Terms, poses a security risk, or is used for abuse. We take into account how serious, frequent and harmful the violation is and whether it was intentional (Art. 23 DSA). As a rule we first warn you or suspend temporarily; we suspend without a prior warning only for serious violations – for example child sexual abuse material, calls to violence, terrorist propaganda, serious threats or fraud – or where immediate action is needed to protect the service or other users. We give reasons for every decision, and you can appeal it (Section 11).

You may delete your account at any time through the app (Account → Delete Account); see our Privacy Policy, Section 7, for exactly what happens when you do. You can terminate the contract at any time without notice. If you withdraw the general consent you gave when you started using Hadaff (Privacy Policy, Section 2), Hadaff cannot be used without it; the withdrawal therefore also counts as your termination with immediate effect, and your account is deleted.

Deletion after inactivity. If you have not signed in for 11 months, we send you a warning email. If you still have not signed in after 12 months, your account and all its data — including your streaks, history and content — are deleted automatically, as described in Section 7 of our Privacy Policy. Signing in at any time before then keeps your account.

Right of withdrawal (Widerrufsrecht). If you are a consumer, you have the right to withdraw from this contract within fourteen days without giving any reason. The withdrawal period expires after fourteen days from the day the contract was concluded (Section 3). To exercise the right of withdrawal, you must inform us (Mostafa Rashid, Heerstr. 441, 13593 Berlin, Germany, support@hadaff.de) of your decision to withdraw from this contract by an unequivocal statement (for example a letter sent by post or an email). You may use the model withdrawal form below, but it is not obligatory. To meet the withdrawal deadline, it is sufficient for you to send your communication concerning your exercise of the right of withdrawal before the withdrawal period has expired. Effects of withdrawal: if you withdraw from this contract, we end it and delete your account as described in Section 7 of our Privacy Policy. Because Hadaff is free of charge, there are no payments to reimburse. Deleting your account in the app has the same effect and is possible at any time, also after the fourteen days.

Withdrawal function (§ 356a BGB). You can also withdraw with the "Vertrag widerrufen" (withdraw from contract) button - in the app under Settings → Account and on our website at hadaff.de/widerruf (linked in the footer of every page). You enter your name and your account's email address and confirm with "Widerruf bestätigen". We immediately send you a receipt by email with the content of your declaration and the date and time we received it.

Model withdrawal form (complete and return this form only if you wish to withdraw from the contract):
To Mostafa Rashid, Heerstr. 441, 13593 Berlin, Germany, support@hadaff.de:
I/We (*) hereby give notice that I/We (*) withdraw from my/our (*) contract for the provision of the following service: use of the Hadaff app
Concluded on (*):
Name of consumer(s):
Username or email address of the account:
Address of consumer(s):
Signature of consumer(s) (only if this form is notified on paper):
Date:
(*) Delete as appropriate.

13. Intellectual Property

All content in the Hadaff app — including its design, code, Quran texts, Athkar, and Hadith compilations, other than the third-party sources credited below — is provided for your personal, non-commercial use only. You may not copy, redistribute, or use app content outside the app without permission.

Quran fonts are sourced from the QPC Fonts project and Google Fonts, used under their respective open-source licenses. Hadaff's QR-code scanning feature uses jsQR, licensed under the Apache License 2.0, and the QR code for sharing your profile is made by qrcode-generator (MIT licence); both run entirely on your device. Place names come from OpenStreetMap (© OpenStreetMap contributors, ODbL). See Section 9 for Quran recitation, text, and reciter attributions.

14. Availability / Changes to the Service

We strive to keep Hadaff available at all times but do not guarantee uninterrupted access; the app may be temporarily unavailable due to maintenance, updates or technical issues. We schedule planned maintenance for quiet times where possible.

Changes to the service (§ 327r BGB). We may change Hadaff where there is a valid reason - for example adapting to new technical conditions or legal requirements, the security of the service, a third-party service we rely on being discontinued, or improving and developing features. Changes are free of charge for you, and we inform you about them clearly and comprehensibly. If a change affects your access to Hadaff or its usability more than insignificantly, we inform you by email at least 30 days in advance about the nature and timing of the change and about your right to end the contract free of charge within 30 days of receiving that information or of the change (whichever is later); you can also delete your account at any time. Before that, you can save a copy of your data with "Download my data". We are liable for damage only under Section 17.

15. Third-Party Services

Certain features rely on external services. Prayer times and the Athan (call to prayer) feature use your device's location, if you choose to share it, sent to the Aladhan prayer-times API. Place names for searching a place and for your location are fetched through our own server from the OpenStreetMap Nominatim service; your location is rounded to about 1 km for this and not linked to your account. If you don't grant location permission, we estimate your city-level location from your IP address via ipapi.co as a fallback. Your coordinates are stored locally on your device, not on our servers. You can deny or revoke location access at any time in your device settings or the app's Tools section and set your location manually instead.

If you enable notifications, we use your device's push token to send you prayer-time reminders and other app-related alerts; you can disable this at any time. Our backend, authentication, database, storage, and push notifications run on Google Firebase; our AI feature runs on OpenAI; and account emails are sent via Resend. Full details of what each service processes are in our Privacy Policy.

16. Disclaimer

Hadaff's content — including Islamic content, prayer-time calculations, and AI-generated responses — is provided with care, but we cannot guarantee its accuracy, completeness, or timeliness. Hadaff is not a substitute for a qualified Islamic scholar, a medical professional, a lawyer, or a financial adviser, and should not be relied upon as such.

17. Limitation of Liability

Hadaff is provided free of charge. We are liable without limitation for damage caused intentionally or by gross negligence, for injury to life, body or health, under the German Product Liability Act, and where we have given a guarantee. For slight negligence we are only liable if we breach an obligation that is essential for the proper use of Hadaff and on which you may regularly rely (a "cardinal obligation"), and then only for the typical, foreseeable damage. Otherwise our liability for slight negligence is excluded — in particular for service interruptions, lost streaks or statistics, and decisions you make based on AI-generated or prayer-time content. Please keep your own copies of content that is important to you; with "Download my data" in Settings you can save a copy of your data at any time.

18. Changes to These Terms

We may update these Terms of Service when the app or the legal requirements change. We tell you about changes in the app at least 30 days before they take effect, with the date from which the new version applies, the new text and a summary of what changed. Earlier versions are at hadaff.de/archiv (German, the binding version). The same applies to changes of the Community Guidelines. Changes that only concern new features, or that are required by law, can apply from the day we tell you. For any other change, we ask for your consent in the app; if you do not agree, the previous Terms continue to apply and you remain free to delete your account at any time. Continued use alone does not count as consent.

19. Governing Law / Jurisdiction

These Terms are governed by the laws of the Federal Republic of Germany, excluding the UN Convention on Contracts for the International Sale of Goods. If you are a consumer habitually resident in another EU member state, you also retain the protection of any mandatory consumer-protection provisions of that country's law. If you are a merchant (Kaufmann), a legal entity under public law or a special fund under public law, the exclusive place of jurisdiction for all disputes is Berlin, Germany; for consumers, the statutory place of jurisdiction applies. We are neither willing nor obliged to participate in proceedings before a consumer arbitration board (Verbraucherschlichtungsstelle).

20. Contact

Mostafa Rashid
Heerstr. 441, 13593 Berlin, Germany
Email: support@hadaff.de