Comparison

16 vs Simple Fasting App

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

Head to head
About

16

This app helps users adopt intermittent fasting by tracking fasting periods, weight changes, and daily water intake. It integrates with Apple Health to import exercise data, providing insights into daily activity alongside dietary progress.

Highlights
  • Fasting tracking
  • Weight tracking
  • Water intake tracking
  • HealthKit integration
  • Fasting progress visualization
Features
Read full description

Now more and more people are trying the new dietary method of intermittent fasting. As a dietary method, intermittent fasting has rapidly become popular worldwide in recent years, attracting a large number of people to try it. This dietary pattern is not only considered an effective weight loss method, but also believed to bring benefits to physical and mental health. What is intermittent fasting? Intermittent fasting is a dietary pattern that cycles between fasting and a normal diet. It doesn't specify which foods you should eat, but when you should eat them. Intermittent fasting does not involve tracking calories. This dietary approach is mainly achieved by limiting the daily eating time, rather than by accurately calculating the amount of calories or protein, fat, and carbohydrates consumed. HealthKit: We import your exercise data from Apple Health to help you understand your daily exercise routine. The intermittent fasting app will provide you with: Fasting Tracking: Intermittent fasting is tracked according to your fasting plan, and you can check your fasting progress at any time to see which stage of intermittent fasting your body is currently in. Weight Tracking: Record the trend of weight changes through daily weight check ins. Drinking water tracking: Set daily drinking water goals and track completion status. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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.

Screenshots

164 screens
Simple Fasting App4 screens

Verdict

The call

The clearest difference is in-app purchases: Simple Fasting App at none against 16's 3. 16's advantage is update cadence (every 9 days vs every 6 weeks) and iOS requirement (15.0 vs 17.6). On price, rating, review sentiment and ratings volume 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. 16 sells 3 in-app purchases, starting at $1.99 per month. Simple Fasting App asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

16 holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 54 and 46 respectively. Written reviews split almost evenly too, at 78% and 77% positive.

UpkeepUpdate frequency

16 ships an update every 9 days, Simple Fasting App every 6 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
16 versus Simple Fasting App: the parameters behind the verdict, then further details
Parameter16Simple Fasting App
PriceFreeFree
Rating4.7 (54 ratings) — better4.5 (46 ratings)
Positive reviews77.8% of reviews — better76.9% of reviews
Number of ratings54 — better46
Update frequencyEvery 9 days — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS15.0 — better17.6
Further details — not scored
Size6 MB6 MB
Age rating4+4+
DeveloperHeze Refresh Network Technology Co., LtdMehmet Emrah Konya

Customer experience

16

All ratings54 ratings
Positive92.6%
Neutral1.9%
Negative5.6%
Written reviews27 reviews
Positive77.8%
Neutral7.4%
Negative14.8%

Simple Fasting App

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

In-app purchases

3 purchases

16

Subscriptions2
  • Pro (Monthly)$1.991 Month
  • Pro (Yearly)$8.991 Year
One-time1
  • Pro (Lifetime)$17.99
None

Simple Fasting App

No in-app purchases

Questions

Is 16 free?
16 is free to download, with in-app purchases available.
Is Simple Fasting App free?
Simple Fasting App is free to download, with no in-app purchases.
Which has better reviews, 16 or Simple Fasting App?
16 is rated higher. 16 averages 4.7 out of 5 from 54 ratings, while Simple Fasting App averages 4.5 from 46 ratings.
Do 16 or Simple Fasting App have ads?
Neither 16 nor Simple Fasting App shows ads.
Which is updated more often, 16 or Simple Fasting App?
16 ships an update every 9 days, and Simple Fasting App every 6 weeks. Most recently, 16 was updated on October 24, 2026 and Simple Fasting App on October 25, 2026.

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