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Frequently asked questions

What is Honest Fast?+

Honest Fast is an iOS app that helps you track fasting with precision and purpose. It includes:

  • A smart fasting timer with real-time tracking
  • Metabolic stage indicators (fat burning, autophagy, etc.)
  • Water intake logging
  • 6 preset fasting plans (16:8, 18:6, 20:4, OMAD, 24-hour, custom)
  • Built-in Ramadan mode with astronomically calculated prayer times
  • Streaks, insights, and health integration

Everything is stored on your device โ€” no servers, no accounts, 100% private.

What's the difference between Free and Premium?+

Free Plan:

  • Fasting timer with elapsed time
  • 6 preset fasting plans
  • Metabolic stage tracking
  • Water logging
  • Ramadan mode with prayer times
  • Streaks & history
  • Live Activity on lock screen

Premium Plan:

  • All free features
  • Custom fasting plan editor (10โ€“48 hours)
  • Advanced insights & analytics
  • Trend heatmaps & breakdowns
  • Detailed health correlations
  • Ad-free experience
What subscription options are available?+

Three Premium options to fit your needs:

  • Monthly: $1.99/month (auto-renews)
  • Yearly: $14.99/year with best value (auto-renews, save 37%)
  • Lifetime: $29.99 one-time purchase (permanent access, no renewal)

All prices shown in USD. Prices may vary by region and currency.

How do I start my first fast?+

Getting started is simple:

  1. Open Honest Fast and complete the onboarding (7 pages)
  2. Choose a fasting plan from the 6 presets or customize your own
  3. Tap the timer to start a fast
  4. Watch your metabolic stages progress in real time
  5. Log water intake and end your fast when ready
What are metabolic stages?+

Metabolic stages show what your body is doing at each phase of your fast:

  • Fasted state (0โ€“4 hours): Digestion phase; glucose is used for energy
  • Fat burning (4โ€“8 hours): Glycogen depletes; body switches to fat for fuel
  • Ketosis (8โ€“16 hours): Deep fat burn; ketone bodies produced for brain fuel
  • Autophagy (16โ€“24 hours): Cellular cleanup; body recycles old/damaged cells
  • Extended (24+ hours): Deep cellular regeneration and advanced benefits

Honest Fast displays which stage you're in based on elapsed time and your plan.

How accurate are the prayer times for Ramadan?+

Very accurate. Honest Fast calculates prayer times using the Muslim World League astronomical method, which is one of the most widely respected methods.

  • Calculations are based on latitude, longitude, and date โ€” not external APIs
  • Times are computed entirely on your device for maximum privacy
  • The app accounts for your local timezone automatically via GPS or manual city selection
  • Real-world factors (weather, terrain, atmospheric conditions) can affect actual sunrise/sunset by a few minutes

For the most precise times, use GPS location. If GPS isn't available, manually select your city from 600+ supported locations.

Does Ramadan mode work without internet?+

Yes! Ramadan mode works completely offline:

  • Prayer times are calculated on your device using built-in algorithms โ€” no server calls
  • Hijri calendar detection is done locally
  • If you've selected a city or enabled GPS before going offline, times remain accurate
  • All reminders and notifications work offline

GPS location updates require internet to reverse-geocode to timezone, so if you want GPS-based times, ensure location is set beforehand.

Can I connect Apple Health?+

Yes! If you want to track weight alongside your fasting:

  • During onboarding, you'll see the Apple Health permission page (optional)
  • Tap "Connect Apple Health" to grant read permission for body weight
  • Weight data helps correlate with fasting trends in Insights
  • You can disconnect anytime: Settings โ†’ Health โ†’ Honest Fast โ†’ toggle off
  • All weight data stays in Apple's Health app โ€” never transmitted or stored by us
Is my data actually private?+

100% yes. Honest Fast is completely offline-first:

  • All fasting logs are stored in CoreData on your device โ€” never sent anywhere
  • Water tracking uses app-group UserDefaults โ€” shared only with widgets on your device
  • Prayer times are calculated locally โ€” no API calls or data transmission
  • We don't use analytics, tracking, or advertising
  • You don't need to create an account

See our Privacy Policy for full details.

How do I cancel my Premium subscription?+

You can cancel anytime through Apple ID:

  1. Open Settings
  2. Tap [Your Name] at the top
  3. Select Subscriptions
  4. Find Honest Fast
  5. Tap Cancel Subscription

You'll retain access until the end of your current billing period. All your data stays on your device.

What happens to my data if I cancel Premium?+

Your data is yours โ€” it stays on your device:

  • All fasting logs remain in the app
  • Streaks and history are preserved
  • You'll lose access to Premium features (custom plans, advanced analytics)
  • Free features remain fully functional
  • You can re-upgrade anytime to regain Premium features
Does the app work with Apple Watch?+

Yes! Honest Fast integrates with Apple Watch:

  • View your fast progress on your wrist
  • Check elapsed time and metabolic stage
  • Log water intake from your watch
  • Receive Ramadan prayer time notifications
  • All data syncs between your iPhone and Apple Watch
What iOS versions are supported?+
  • iOS 14.0 or later (iPhone)
  • iPadOS 14.0 or later (iPad)
  • watchOS 7.0 or later (Apple Watch)
Is this a medical app?+

No. Honest Fast is a personal wellness tracking tool, not a medical device. It is not designed to diagnose, treat, prevent, or cure any medical condition.

Important: Before starting any fasting regimen, especially extended fasts, consult a qualified healthcare provider โ€” especially if you have diabetes, heart disease, are pregnant/nursing, or take medications. Your health is your responsibility.

Troubleshooting

App won't open or crashes

  1. Force-close the app (swipe up from the bottom)
  2. Restart your iPhone
  3. Update iOS in Settings โ†’ General โ†’ Software Update
  4. Delete and reinstall Honest Fast from the App Store
  5. If problems persist, email us with device model and iOS version

Prayer times seem wrong

  1. Check your location: tap the city picker and verify your location is correct
  2. If using GPS, ensure location permission is granted and GPS is accurate
  3. Verify your timezone is correct in Settings
  4. Compare with other Islamic calendar apps to verify โ€” atmospheric conditions can cause small variations
  5. If times are consistently off, contact us with your location details

Water count not updating

  1. Ensure you're actively fasting (timer is running)
  2. Check that app notifications are enabled for reminders
  3. Force-close and reopen the app
  4. If using lock screen widget, ensure app group permissions are granted

Data not saving

  1. Ensure you have storage space on your device (Settings โ†’ General โ†’ Storage)
  2. Check that CoreData hasn't hit storage limits
  3. Force-close and restart the app
  4. Ensure you tap the save/end button after logging

Getting started tips

Still need help?

Couldn't find your answer? Our team is happy to help with any question or issue.

Contact support

Typical response time: 2โ€“3 business days

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