Comparison

16 vs Fasting Tracker

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

Fasting Tracker

This app helps you manage intermittent fasting with a real-time timer, progress visualization, and detailed journaling. It offers smart reminders, goal setting, and motivational tools to support your wellness journey and build healthy habits.

Highlights
  • Multiple fasting intervals
  • Real-time timer with progress visualization
  • Fasting journal for health metrics
  • Smart reminders and notifications
  • Goal setting and streak tracking
  • Personalized insights (premium)
Features
Read full description

FastRight is a clear, focused intermittent fasting tracker. Start a fast in seconds, watch the live timer move through each fasting zone, and see your weight trend toward your goal. Whether you follow 16:8, 18:6, 20:4 or one meal a day, FastRight keeps your fasting routine simple and your progress easy to see. FAST YOUR WAY Pick a plan that fits your day: Circadian Rhythm (13h), 16:8, 18:6, 20:4 or OMAD (23:1). With Premium, set any custom duration, from a few hours to multi-day fasts. KNOW WHAT YOUR BODY IS DOING The timer shows which fasting zone you are in right now: Anabolic, Catabolic, Fat Burning, Ketosis and Deep Ketosis. Short explanations tell you what each phase means. STAY ON TRACK Get a notification when you are halfway, when one hour is left, when you enter a new zone and when you reach your goal. Build a fasting streak, check in daily and unlock 20 achievements along the way. SEE YOUR PROGRESS Your stats show total fasts, total fasting time, average and longest fast. Browse every fast in your history and on the calendar. TRACK YOUR WEIGHT Log your weight in lb or kg, set a goal weight and follow your current weight, 30-day trend and the estimated time to reach your goal. GO DEEPER WITH PREMIUM Unlock advanced insights: streaks and consistency, your preferred plan, success rate, best start time, weekday vs. weekend patterns and month-to-month comparisons. Add the weight chart, edit any past log, and back up or move your data with export and import. ON YOUR WRIST Follow your active fast on Apple Watch: elapsed time, target, progress and current zone, and end your fast right from your wrist. Light and dark mode are both supported. Start your next fast today and let FastRight keep the count. FREE FEATURES • Fasting timer with a live progress ring • Preset plans: Circadian, 16:8, 18:6, 20:4 and OMAD • Fasting zones with simple explanations • Halfway, one-hour-left, zone and goal notifications • Fasting stats: total, average and longest fast • Fasting history and calendar • Weight log with goal, trend and time-to-goal estimate • Fasting streaks, daily check-in and 20 achievements • Apple Watch app to follow and end your fast PREMIUM FEATURES • Custom fasting durations, including multi-day fasts • Personalized insights: streaks, consistency and patterns • Monthly progress and month-to-month comparisons • Weight chart to see your progress over time • Edit any previous fasting or weight log • Export and import your data • No ads Privacy Policy: https://www.metko.org/fastright/privacy.html Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

164 screens
Fasting Tracker4 screens

Verdict

The call

The clearest difference is ads: 16 at none against Fasting Tracker's shown. 16 also leads on review sentiment (78% vs 61%) and iOS requirement (15.0 vs 17.0). Fasting Tracker's advantage is update cadence (every 3 days vs every 9 days) and ratings volume (428 vs 54). On price, rating, in-app purchases and monetization model 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 and Fasting Tracker sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for 16 against 4.7 for Fasting Tracker. That said, the two scores are not equally well evidenced: Fasting Tracker has 428 ratings behind it against 54, so its average is the more settled of the two. Written reviews are what separate them: 78% of 16's written reviews are positive against 61% of Fasting Tracker's.

UpkeepUpdate frequency

16 ships an update every 9 days, Fasting Tracker every 3 days. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
16 versus Fasting Tracker: the parameters behind the verdict, then further details
Parameter16Fasting Tracker
PriceFreeFree
Rating4.7 (54 ratings)4.7 (428 ratings) — better
Positive reviews77.8% of reviews — better60.9% of reviews
Number of ratings54428 — better
Update frequencyEvery 9 daysEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS15.0 — better17.0
Further details — not scored
Size6 MB48 MB
Age rating4+4+
DeveloperHeze Refresh Network Technology Co., LtdMETKO LABS BILISIM ITHALAT VE IHRACAT TICARET LIMITED SIRKETI

Customer experience

16

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

Fasting Tracker

All ratings428 ratings
Positive91.1%
Neutral5.1%
Negative3.7%
Written reviews23 reviews
Positive60.9%
Neutral13.0%
Negative26.1%

In-app purchases

3 purchases

16

Subscriptions2
  • Pro (Monthly)$1.991 Month
  • Pro (Yearly)$8.991 Year
One-time1
  • Pro (Lifetime)$17.99
4 purchases

Fasting Tracker

Subscriptions4
  • Intermittent Fasting Tracker$6.997 Days
  • Intermittent Fasting Tracker$14.991 Month
  • Intermittent Fasting Tracker$29.991 Year
Show 1 more
  • Intermittent Fasting Tracker$39.991 Year

Questions

Is 16 free?
16 is free to download, with in-app purchases available.
Is Fasting Tracker free?
Fasting Tracker is free to download, with in-app purchases available.
Which has better reviews, 16 or Fasting Tracker?
Fasting Tracker is rated higher. 16 averages 4.7 out of 5 from 54 ratings, while Fasting Tracker averages 4.7 from 428 ratings.
Do 16 or Fasting Tracker have ads?
Fasting Tracker shows ads; 16 does not.
Which is updated more often, 16 or Fasting Tracker?
16 ships an update every 9 days, and Fasting Tracker every 3 days. Most recently, 16 was updated on October 24, 2026 and Fasting Tracker on October 30, 2026.

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