Comparison

Ember Fasting vs RepliRest

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

Head to head
About

Ember Fasting

This app provides a simple and beautiful intermittent fasting timer with a widget-first design. It offers precise tracking of fasting progress, various popular protocols, and metabolic insights for Pro users. The app focuses on a clean user experience without ads or dark patterns.

Highlights
  • Widget-first design for home and lock screens
  • Fast launch time and smooth animations
  • Live metabolic process tracking (Pro)
  • Support for 5 popular fasting protocols
  • Streak tracking and milestone celebrations
  • Smart notifications for fast completion
Features
Read full description

The fasting timer that respects your time and your wallet. Ember is a beautifully crafted intermittent fasting timer that just works. No account required. No ads. No dark patterns. Just a precise, reliable timer with stunning widgets and honest pricing. WIDGET-FIRST DESIGN Check your fasting progress without opening the app. Ember offers 7 widget styles: small interactive, medium, large, Lock Screen, and StandBy. Your progress is always a glance away. Start and stop fasts right from your home screen. BEAUTIFUL & FAST Launches in under a second. Your body runs multiple metabolic processes during a fast: fat burning, ketosis, autophagy. They overlap and build on each other gradually. Ember tracks your progress with smooth animations and warm, purposeful design. Choose from 10 curated color themes or set your own custom accent color. Pick from 8 app icon styles to match your aesthetic. METABOLIC INSIGHT (PRO) Fasting isn't a series of stages you enter and leave, it's overlapping biological processes that build on each other. Pro unlocks live metabolic process tracking: see fat burning, ketosis, and autophagy ramping simultaneously with intensity indicators. Tap the info icon during any fast to see exactly what's happening in your body. EVERYTHING YOU NEED, NOTHING YOU DON'T - All 5 popular protocols: 16:8, 18:6, 20:4, OMAD, or create your own - Streak tracking with milestone celebrations - History with weekly calendar view - Basic stats to track your progress - Smart notifications for fast completion, zone transitions, and daily reminders HONEST PRICING The full fasting timer is free. No trial traps. No surprise charges. Pro unlocks metabolic insight, extra widget styles, themes, icons, and advanced notifications for $1.99/month, $14.99/year, or $29.99 lifetime. That's it. PRIVACY BY DESIGN Your data never leaves your device. No account. No analytics. No tracking. Our App Store privacy label is "Data Not Collected"...and we mean it. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

RepliRest

Features
Read full description

RepliRest helps you understand your sleep, recovery, habits, and nightly patterns with a clean, privacy-first experience for iPhone and Apple Watch. Connect Apple Health to view last night's sleep, sleep stages, heart rate, HRV, respiratory trends, and recovery estimates. RepliRest turns those signals into simple dashboards, timelines, trends, and cautious insights based on your recent data. Core features: - Sleep dashboard with sleep score, duration, time in bed, efficiency, awake time, deep sleep, REM sleep, HRV, resting heart rate, and recovery estimates. - Sleep timeline with visual sleep stage breakdowns. - Trends for sleep score, duration, sleep debt, consistency, and recovery. - Habit journal for caffeine, alcohol, workouts, stress, screen time, late meals, travel, naps, illness, and notes. - Local correlation insights that use careful wording such as "may be associated with" and "appears linked to." - Personal baseline and digital twin-style views that compare last night to your own normal patterns. - Tonight forecast, recovery forecast, and sleep detective-style explanation cards. - Apple Watch dashboard for sleep score, recovery, bedtime target, and quick summaries. - Optional exports and premium analytics. Privacy-first by design: RepliRest is built to keep derived insights local first. Raw Apple Health data is not sold and is not used for advertising. Optional iCloud sync is intended for settings, habits, preferences, and derived analytics rather than raw HealthKit data. Important: RepliRest is not a medical device and does not provide medical diagnosis, treatment, or emergency guidance. Sleep and recovery scores are informational estimates only. Talk to a qualified healthcare professional for medical concerns. Subscriptions: RepliRest Premium Monthly and RepliRest Premium Annual are auto-renewable subscriptions. Payment is charged to your Apple ID account. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in App Store account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.dilladev.com/replirest/privacy-policy

Screenshots

Ember Fasting4 screens
RepliRest4 screens

Verdict

The call

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

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

CostPrice · In-app purchases · Ads · Monetization

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

Scorecard1 real difference · 8 level
Ember Fasting versus RepliRest: the parameters behind the verdict, then further details
ParameterEmber FastingRepliRest
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS17.0 — better18.0
Further details — not scored
Size3 MB12 MB
Age rating4+4+
DeveloperChris SchradeDillaman Research and Development Inc.

In-app purchases

3 purchases

Ember Fasting

Subscriptions2
  • Ember Pro Monthly$1.991 Month
  • Ember Pro Annual$14.991 Year
One-time1
  • FastApp Pro Lifetime$29.99
None

RepliRest

No in-app purchases

Questions

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

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