Comparison

Simple Fasting App vs AllyFastLite

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

Head to head
About

Simple Fasting App

This app simplifies intermittent fasting with a focus on privacy and ease of use. It offers popular fasting schedules, progress tracking, and smart notifications without ads, subscriptions, or data collection.

Highlights
  • Free and private
  • Popular fasting schedules
  • Progress tracking
  • Smart notifications
  • Intuitive design
  • Customizable themes
  • Quick start
Features
Read full description

Track intermittent fasting with a clear timer, flexible plans and a history you can return to. Simple Fasting App is free to use, with every feature included and no ads or subscriptions. Start without creating an account. A PLAN THAT FITS YOUR DAY Choose 12:12, 16:8, 18:6, 20:4 or a 24-hour fast, or set your own duration. Adjust the start time if you forgot to start the timer. Finish whenever you need to; reaching your target does not automatically end your fast. YOUR PROGRESS AT A GLANCE See elapsed time, time remaining and your planned finish time. Set an optional completion reminder. Follow your fast with Home Screen widgets, Live Activities and Dynamic Island on supported iPhones. APPLE WATCH AND SIRI Start and finish a fast from your Apple Watch. Your session syncs with your paired iPhone when connectivity is available. Tap the watch dial to open its controls. Use Siri and Shortcuts to manage your fast, ask about time and history, or change the timer display. You can also choose your next plan through a shortcut while your current fast continues. Siri availability depends on language, device and system settings. A HISTORY THAT MAKES SENSE Review completed fasts, average duration, your longest fast and weekly or monthly patterns. Open a day to see its sessions and timeline. Use the roomier iPad layout in portrait or landscape. LEARN AS YOU GO Explore illustrated fasting-stage guides with source links. The stages are general estimates based on elapsed time, not measurements of your metabolism or guarantees of a health result. PRIVATE AND PERSONAL Your fasting records are stored locally on your devices. The app does not collect or sell your fasting data. Paired iPhone–Watch syncing and optional Siri features use Apple system services; details are in the privacy policy. Choose light or dark appearance and your preferred accent color. Available in English, Turkish, German and Spanish. Simple Fasting App is a personal tracking tool and does not provide medical advice. Choose your plan and start when you are ready.

About

AllyFastLite

This app offers a clean and private intermittent fasting timer. It supports various fasting schedules and provides insights into fasting stages. All data is stored locally on your device for enhanced privacy.

Highlights
  • Intermittent fasting timer
  • Supports multiple fasting plans
  • Extended fast tracking
  • Editable fasting history
  • Fasting stage insights
  • Local data import/export
  • Dark Mode support
Features
Read full description

AllyFast is a beautifully crafted intermittent fasting timer built with SwiftUI. Clean, lightweight, and privacy-first. Whether you follow 16:8, 18:6, 20:4, OMAD, or extended fasts, AllyFast keeps your fasting journey simple and focused. Why AllyFast? • No subscriptions. One-time $0.99. Yours forever. • 100% private. All data stays on your device. • No ads, no trackers, no accounts, no clutter. • Ultra lightweight at just 1.7 MB. Key Features • Beautiful fasting timer with smooth SwiftUI animations • Supports intermittent fasting plans: 12:12, 14:10, 16:8, 18:6, 20:4, OMAD • Extended fasts up to 72 hours • Editable fasting history with color-coded goal tracking • Science-based fasting stage insights (fed state, ketosis, autophagy, and more) • Unlimited local import and export of your fasting data • Polished for iOS 26 Liquid Glass • Full Dark Mode support Perfect Privacy Your fasting data never leaves your iPhone. No cloud sync, no servers, no tracking. Just you and your fast. Built for Everyone From beginners exploring their first 16:8 fast to experienced fasters tracking multi-day autophagy windows, AllyFast adapts to your goals without getting in the way. No cloud. No noise. Just fasting.

Screenshots

Simple Fasting App4 screens
AllyFastLite4 screens

Verdict

The call

The clearest difference is monetization model: Simple Fasting App at free against AllyFastLite's paid. Simple Fasting App also leads on update cadence (every 6 weeks vs every 5 months) and ratings volume (47 vs 9). AllyFastLite's advantage is review sentiment (100% vs 77%) and rating (4.8 vs 4.5). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

AllyFastLite holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Simple Fasting App has 47 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 77% of Simple Fasting App's written reviews are positive against 100% of AllyFastLite's.

UpkeepUpdate frequency

Simple Fasting App ships an update every 6 weeks, AllyFastLite every 5 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Simple Fasting App versus AllyFastLite: the parameters behind the verdict, then further details
ParameterSimple Fasting AppAllyFastLite
PriceFreeFree
Rating4.5 (47 ratings)4.8 (9 ratings) — better
Positive reviews76.9% of reviews100.0% of reviews — better
Number of ratings47 — better9
Update frequencyEvery 6 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.6 — better18.2
Further details — not scored
Size6 MB3 MB
Age rating4+4+
DeveloperMehmet Emrah KonyaWonseok Lee

Customer experience

Simple Fasting App

All ratings38 ratings
Positive81.6%
Neutral10.5%
Negative7.9%
Written reviews13 reviews
Positive76.9%
Neutral23.1%
Negative0.0%

AllyFastLite

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Simple Fasting App

No in-app purchases

None

AllyFastLite

No in-app purchases

Questions

Is Simple Fasting App free?
Simple Fasting App is free to download, with no in-app purchases.
Is AllyFastLite free?
AllyFastLite is free to download, with no in-app purchases.
Which has better reviews, Simple Fasting App or AllyFastLite?
AllyFastLite is rated higher. Simple Fasting App averages 4.5 out of 5 from 47 ratings, while AllyFastLite averages 4.8 from 9 ratings.
Do Simple Fasting App or AllyFastLite have ads?
Neither Simple Fasting App nor AllyFastLite shows ads.
Which is updated more often, Simple Fasting App or AllyFastLite?
Simple Fasting App ships an update every 6 weeks, and AllyFastLite every 5 months. Most recently, Simple Fasting App was updated on October 30, 2026 and AllyFastLite on October 25, 2026.

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