Effective date: 23 October 2026
On iPhone and iPad, Apple’s Standard EULA governs your use of the app. The app is free; Premium is an optional subscription that renews automatically unless cancelled at least 24 hours before the period ends. Predictions are estimates — not medical advice and not contraception.
1. Agreement
These terms are an agreement between you and Hossam Hamouda (“we”, “us”), the developer of the app “Period Calc” (حاسبتي, shown inside the app as “Period Calculator”). By using the app you agree to these terms and to the Privacy Policy. If you do not agree, please do not use the app.
2. Licence on iPhone and iPad
If you downloaded the app from the App Store, your licence to use it is governed by Apple’s Standard Licensed Application End User License Agreement (EULA). The terms below add app-specific points and do not reduce your rights under that agreement. Apple is not responsible for the app, its content or its support.
If you got the app from another store such as Google Play, we grant you a personal, non-exclusive, non-transferable licence to use it on your devices for personal, non-commercial purposes, subject to that store’s terms.
3. Not medical advice, not contraception
The app’s predictions — next period, ovulation, fertile days, period days expected in Ramadan or during events, and due date — are mathematical estimates based on the average of what you record, and cycles vary from month to month.
- The app is not a medical device. It does not diagnose or treat any condition and does not replace your doctor.
- Do not use it as a method of contraception, or rely on it to get pregnant.
- For religious rulings about fasting and worship, ask a qualified scholar.
5. Your data
Everything you record in the app — your cycle, health, fasting and planner data — is stored only on your phone (see the Privacy Policy) and we have no copy of it. The app sends us only anonymous usage steps, which you can turn off (Privacy Policy, section 4). You are responsible for keeping a backup of your phone. If the app is deleted, the phone is lost without a backup, or the PIN is forgotten, we cannot recover your data.
6. Acceptable use
You agree not to use the app unlawfully, and not to disrupt, reverse-engineer, or circumvent its subscription protections, except as the law allows.
7. Intellectual property
The app, its design, text and icon are owned by or licensed to us. These terms give you no ownership rights, only the licence described above.
8. Disclaimer of warranties
The app is provided “as is” and “as available”, without warranties of any kind, express or implied — including accuracy or fitness for a particular purpose — to the maximum extent permitted by law.
9. Limitation of liability
To the maximum extent permitted by law, we are not liable for any indirect, incidental or consequential damages, or for any health decision, unplanned pregnancy or data loss resulting from using the app or relying on its predictions. In any case, our total liability is limited to the amount you paid for the app in the twelve months before the claim. Nothing in these terms limits rights you have under consumer-protection laws that cannot be waived.
10. Changes to these terms
We may update these terms from time to time. We will post the new version on this page with a new effective date, and explain material changes affecting paid features in the app’s update notes.
11. Governing law
These terms are governed by the laws applicable at the developer’s place of residence, subject to the mandatory consumer-protection rules of your country of residence.
12. Contact
Questions about these terms? Email hossam.hamoda@gmail.com.