Comparison

Meridian vs The Fast

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Meridian

This app offers a straightforward approach to intermittent fasting, focusing on a clean interface and scientific insights into metabolic phases. It allows users to start and stop fasting with ease, track custom schedules, and understand their body's processes without intrusive features or upselling.

Highlights
  • One-tap start/stop timer
  • Metabolic phase insights
  • Built-in and custom schedules
  • Data stays on device
  • Optional Apple Health integration
  • Clean, intentional design
Features
Read full description

Meridian is the fasting app for people who are tired of fasting apps. No 15-screen onboarding quiz. No AI coach upselling you a meal plan. No gamification badges. No paywall on the timer. Just a clean, powerful tool that respects your intelligence and your time. START IN SECONDS One tap to start. One tap to stop. Meridian tracks your fasting window, shows what's happening in your body at each metabolic phase, and stays out of your way. Every schedule built in โ€” 14:10, 16:8, 18:6, 20:4, OMAD, or set your own custom window. REAL SCIENCE, NOT SLOGANS Each body phase is grounded in peer-reviewed metabolic research. Know when glycogen depletes. Know when ketosis begins. Know when autophagy ramps up. Meridian tells you what's actually happening โ€” with citations, not marketing copy. YOUR DATA STAYS ON YOUR DEVICE No account required. No cloud sync you didn't ask for. No analytics tracking your behavior. All data lives on your iPhone and stays there. Optional Apple Health integration reads and writes only with your explicit permission. DESIGNED WITH INTENTION Every screen earns its place. Meridian follows a less-but-better philosophy โ€” no feature creep, no settings bloat, no dark patterns. Dark mode and light mode. Clean typography. A timer that's beautiful enough to leave on your nightstand. BUILT-IN SCHEDULES โ€ข 14:10 โ€” Gentle start for beginners โ€ข 16:8 โ€” The most popular protocol โ€ข 18:6 โ€” Deeper metabolic benefits โ€ข 20:4 โ€” The Warrior approach โ€ข OMAD โ€” One Meal A Day โ€ข Custom โ€” Set any window you want MERIDIAN PREMIUM Unlock deeper insights and advanced features for less than a coffee: โ€ข Detailed fasting history and trends โ€ข Body phase insights with metabolic data โ€ข Advanced streak tracking โ€ข Custom schedule presets โ€ข Full data export $1.99/month ยท $14.99/year (save 37%) ยท $39.99 lifetime No free trial. No tricks. At this price, you'll know within a day if Meridian is for you. Privacy policy: https://trymeridian.today/privacy-policy Terms Of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: https://trymeridian.today/support

About

The Fast

Features
Read full description

Fasting, at your pace. Choose a duration and start. A slowly moving record marks the time, with elapsed time and time remaining always within reach. ON YOUR HOME SCREEN Small and medium widgets keep your fast in view. See elapsed time at a glance, or use the larger widget for the full record, progress and time remaining. A MONTH, ON RECORD Browse your fasting history in a simple calendar. Finished goals retain their record color. Early endings appear in gray. Open any day to see each fast. YOURS TO SHARE Share one fast or your whole month as a single image. Include record details and exact times when you want to. LIGHT BY DESIGN Use the timer, history and widgets without an account. Your records stay on your device unless you choose to sync them. Optional Apple, Google or email sign-in lets you keep records across devices. Free to use. No ads. The Fast records time. It does not provide medical or dietary advice.

Screenshots

Meridian4 screens
The Fast4 screens

Verdict

The call

The clearest difference is in-app purchases: The Fast at none against Meridian's 3. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Meridian sells 3 in-app purchases, starting at $1.99 per month. The Fast asks for nothing beyond the download.

Scorecard1 real difference ยท 7 level
Meridian versus The Fast: the parameters behind the verdict, then further details
ParameterMeridianThe Fast
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyโ€”Daily
AdsNoNo
In-app purchasesYesNo โ€” better
MonetizationFreemiumโ€”
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS17.616.4 โ€” better
Further details โ€” not scored
Size3 MB31 MB
Age rating12+4+
DeveloperZACHARY MARK MULLIGANPrime Adventure LLC

In-app purchases

3 purchases

Meridian

Subscriptions2
  • Meridian Premium$1.991 Month
  • Meridian Premium$14.991 Year
One-time1
  • Meridian Premium (Lifetime)$39.99
None

The Fast

No in-app purchases

Questions

Is Meridian free?
Meridian is free to download, with in-app purchases available.
Is The Fast free?
The Fast is free to download, with no in-app purchases.
Do Meridian or The Fast have ads?
Neither Meridian nor The Fast shows ads.

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