Comparison

16 vs FastMate

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

FastMate

Features
Read full description

Take control of your health with FastMate, the simple and intuitive companion for tracking intermittent fasting, hydration, and weight. Whether you are a beginner exploring the 16:8 method or an experienced practitioner doing OMAD, FastMate helps you build lasting healthy habits. FASTING TIMER & TRACKING Track your fasting sessions with a real-time countdown and detailed history. FastMate supports all major fasting protocols and allows for complete customization: • Popular plans: 16:8, 14:10, 12:12, 18:6, 20:4, and OMAD. • Circadian rhythm fasting. • Personalized fasting schedules tailored to your lifestyle. • Detailed statistics to visualize consistency and progress. WEIGHT MANAGEMENT Log your weight effortlessly and monitor trends over time. • Intelligent trend analysis to see progress beyond the daily scale number. • Visual progress charts to keep you motivated. • Support for Kilograms (kg), Pounds (lbs), and Stones (st). • Goal setting to help you reach your target milestones. HYDRATION TRACKER Proper hydration is essential for successful fasting. FastMate makes it easy: • Personalized daily water goals. • Quick-tap buttons for fast logging of 10+ beverage types. • Support for all common volume units (ml, L, oz, cups, etc.). • Visual progress indicators to help you reach your fluid intake goals. COMPLETE PERSONALIZATION • Guided onboarding to establish your baseline. • Customizable reminders and notification schedules. • Multiple visual themes to match your style. • Sync and adjust your data anytime. INTELLIGENT ANALYTICS Go beyond simple logging. See how your fasting patterns correlate with weight changes and monitor your hydration consistency throughout your fasting windows. Start tracking your journey today. Download FastMate and take control of your wellness!

Screenshots

164 screens
FastMate4 screens

Verdict

The call

The clearest difference is in-app purchases: FastMate at none against 16's 3. 16's advantage is ads (none vs shown) and update cadence (every 9 days vs every 5 months). On price, 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. 16 sells 3 in-app purchases, starting at $1.99 per month. FastMate asks for nothing beyond the download.

UpkeepUpdate frequency

16 ships an update every 9 days, FastMate every 5 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
16 versus FastMate: the parameters behind the verdict, then further details
Parameter16FastMate
PriceFreeFree
Rating4.7 (54 ratings) — better—
Positive reviews77.8% of reviews—
Number of ratings54 — better—
Update frequencyEvery 9 days — betterEvery 5 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.6
Further details — not scored
Size6 MB29 MB
Age rating4+12+
DeveloperHeze Refresh Network Technology Co., LtdTensifyTech LLP

In-app purchases

3 purchases

16

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

FastMate

No in-app purchases

Questions

Is 16 free?
16 is free to download, with in-app purchases available.
Is FastMate free?
FastMate is free to download, with no in-app purchases.
Do 16 or FastMate have ads?
FastMate shows ads; 16 does not.
Which is updated more often, 16 or FastMate?
16 ships an update every 9 days, and FastMate every 5 months. Most recently, 16 was updated on November 4, 2026 and FastMate on October 30, 2026.

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