Comparison

Meridian vs SimpleFast

Price, ratings, monetisation and update history for both apps, side by side β€” 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 β€” 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 β€” 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 β€” 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 β€’ 14:10 β€” Gentle start for beginners β€’ 16:8 β€” The most popular protocol β€’ 18:6 β€” Deeper metabolic benefits β€’ 20:4 β€” The Warrior approach β€’ OMAD β€” One Meal A Day β€’ Custom β€” Set any window you want MERIDIAN PREMIUM Unlock deeper insights and advanced features for less than a coffee: β€’ Detailed fasting history and trends β€’ Body phase insights with metabolic data β€’ Advanced streak tracking β€’ Custom schedule presets β€’ Full data export $1.99/month Β· $14.99/year (save 37%) Β· $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

SimpleFast

Features
Read full description

SimpleFast: Fasting Tracker A clean and simple way to track your fasting windows, eating windows, and daily habits - all in one place. SimpleFast is designed to help you stay consistent without distractions. Whether you’re just starting or following a structured plan like 16:8, it keeps everything clear, calm, and easy to use. - 100% Free. No ads. No distractions. SimpleFast is completely free to use, with no ads and no subscriptions. Focus on your fasting routine without interruptions. - Track your fast, effortlessly Start a fasting session with one tap and let SimpleFast handle the rest - even when the app is closed. Choose from popular fasting styles: * 16:8 Intermittent Fasting * Overnight Fasting * Alternate Day Fasting * Custom durations - Flexible eating windows After your fast, start an eating window and adjust it to match your real schedule. * Set custom start time * Adjust window length * Track fasting and eating cycles - See your progress * Daily streak tracking * Total fasting time * Longest fast * Weekly overview - Reflect and stay consistent * Mood tracking * Hunger level * Notes after each fast - Helpful reminders * Fast complete alerts * Eating window reminders * Window ending alerts - Private by design Your data stays on your device. No account required. No tracking. - Disclaimer SimpleFast is a fasting tracker for personal use. It does not provide medical advice.

Screenshots

Meridian4 screens
SimpleFast4 screens

Verdict

The call

The clearest difference is in-app purchases: SimpleFast at none against Meridian's 3. Meridian's advantage is iOS requirement (17.6 vs 26.2). On price, ads and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

Scorecard2 real differences Β· 5 level
Meridian versus SimpleFast: the parameters behind the verdict, then further details
ParameterMeridianSimpleFast
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
AdsNoNo
In-app purchasesYesNo β€” better
MonetizationFreemiumβ€”
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 β€” better26.2
Further details β€” not scored
Size3 MB6 MB
Age rating12+4+
DeveloperZACHARY MARK MULLIGANKhitdhikhun Klinsang

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

SimpleFast

No in-app purchases

Questions

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

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