Rayyan: Islamic Fasting
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About this app
Rayyan is the focused fasting companion made just for Muslims — track your Sunnah fasts, Ramadan, and make-up (qada) days, and never miss a recommended day again.
Most fasting apps are built for intermittent dieting. Rayyan is different: it knows the Hijri calendar and every recommended fasting day — Mondays and Thursdays, the White Days (Ayyam al-Bidh), the Day of Arafah, Ashura, the six days of Shawwal, and Ramadan — and gently reminds you the day before, so you can plan ahead.
THE DAY BEFORE, NOT AFTER
Get a warm reminder the evening before each recommended day: "Tomorrow is Monday — planning to fast?" No more missing the White Days because you lost track of the Hijri month.
ONE TAP, NO CLOCKS
The Today screen shows exactly what today is and lets you log your fast with a single tap — start and finish, on your own terms. Rayyan deliberately does not show prayer times: it tracks days, not minutes, so you keep your own adhan app for timings.
A CALENDAR THAT TEACHES
See your whole fasting month at a glance. Recommended days are highlighted; tap any day to learn what it is and why it matters, from authentic sources. Forbidden days (the two Eids) are clearly marked.
STREAKS & MAKE-UP TRACKING
Build a lasting streak, see your fasts by type, and keep an exact count of your Ramadan make-up (qada) days — with a gentle monthly reminder until your count reaches zero.
THE IFTAR DU'A, ALWAYS THERE
The du'a for breaking your fast — Arabic, transliteration, and translation — right on your home screen.
100% OFFLINE & PRIVATE
Everything is calculated on your device. No account, no server, no internet needed — your data never leaves your phone. Works on a plane, on a mountain, anywhere.
Free to use, with light, family-friendly ads. Light and dark themes included.
May Allah accept your fasts.
Most fasting apps are built for intermittent dieting. Rayyan is different: it knows the Hijri calendar and every recommended fasting day — Mondays and Thursdays, the White Days (Ayyam al-Bidh), the Day of Arafah, Ashura, the six days of Shawwal, and Ramadan — and gently reminds you the day before, so you can plan ahead.
THE DAY BEFORE, NOT AFTER
Get a warm reminder the evening before each recommended day: "Tomorrow is Monday — planning to fast?" No more missing the White Days because you lost track of the Hijri month.
ONE TAP, NO CLOCKS
The Today screen shows exactly what today is and lets you log your fast with a single tap — start and finish, on your own terms. Rayyan deliberately does not show prayer times: it tracks days, not minutes, so you keep your own adhan app for timings.
A CALENDAR THAT TEACHES
See your whole fasting month at a glance. Recommended days are highlighted; tap any day to learn what it is and why it matters, from authentic sources. Forbidden days (the two Eids) are clearly marked.
STREAKS & MAKE-UP TRACKING
Build a lasting streak, see your fasts by type, and keep an exact count of your Ramadan make-up (qada) days — with a gentle monthly reminder until your count reaches zero.
THE IFTAR DU'A, ALWAYS THERE
The du'a for breaking your fast — Arabic, transliteration, and translation — right on your home screen.
100% OFFLINE & PRIVATE
Everything is calculated on your device. No account, no server, no internet needed — your data never leaves your phone. Works on a plane, on a mountain, anywhere.
Free to use, with light, family-friendly ads. Light and dark themes included.
May Allah accept your fasts.
Track Sunnah fasts, Ramadan & qada days — never miss a recommended day again.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- This app may collect these data typesApp activity, App info and performance, and Device or other IDs
- Data is encrypted in transit
- Data can’t be deleted
What’s new
• Onboarding no longer shows a purchase step — you go straight into the app.
• The splash screen now follows your phone's light or dark theme.
• The splash screen now follows your phone's light or dark theme.
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About the developer
NUCLEUS
info@nucleus.ba
Sehovina 20, 13
88108 Mostar
Bosnia & Herzegovina
+387 61 589 885
