Fasting Tracker vs Inner Library
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fasting Tracker
This app helps you track intermittent fasting with a live timer and preset plans like 16:8. It shows your progress, weight trends, and offers notifications to keep you on track. Unlock advanced insights and features with a premium subscription.
- Live intermittent fasting timer
- Preset and custom fasting plans
- Fasting zone explanations
- Progress tracking and stats
- Weight logging and goal setting
- Achievements and streaks
- Apple Watch integration
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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/
Inner Library
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Inner Library is a private space for slowing down, noticing patterns, and understanding yourself more clearly. The app brings together simple tools such as mood tracking, short notes, gratitude entries, meditation, affirmations, calming sounds, yoga, daily challenges, and educational articles, habits, patterns, stress relief With regular use, these tools can help you understand what influences your mood, which habits tend to repeat, what supports your well-being, and where you may be getting stuck. Over time, it becomes easier to recognise patterns and notice small changes in your daily life. Your privacy is important. We do not collect any personal data. Your notes, entries, and other records stay on your device. If you change or replace your device, remember to create a backup in the app settings so you can keep your records. Many features are available for free. Additional tools can be unlocked through a single lifetime purchase. No subscription. No recurring fees. Inner Library is not a medical app and does not provide diagnosis, treatment or emergency services. If you are in immediate danger or need urgent help, please contact local emergency services.
Screenshots
Verdict
The clearest difference is ads: Inner Library at none against Fasting Tracker's shown. Fasting Tracker's advantage is update cadence (every 3 days vs every 9 days). On price, in-app purchases, 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
Both are free to download. Fasting Tracker sells 4 in-app purchases, starting at $6.99 per 7 days and Inner Library sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Fasting Tracker ships an update every 3 days, Inner Library every 9 days. The most recent releases landed on October 30, 2026 and October 12, 2026 respectively.
| Parameter | Fasting Tracker | Inner Library |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (428 ratings) — better | — |
| Positive reviews | 60.9% of reviews | — |
| Number of ratings | 428 — better | — |
| Update frequency | Every 3 days — better | Every 9 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 48 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | METKO LABS BILISIM ITHALAT VE IHRACAT TICARET LIMITED SIRKETI | Peter Pech |
In-app purchases
Fasting Tracker
- Intermittent Fasting Tracker$6.997 Days
- Intermittent Fasting Tracker$14.991 Month
- Intermittent Fasting Tracker$29.991 Year
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- Intermittent Fasting Tracker$39.991 Year
Inner Library
- Premium Unlock$7.99






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