Intermittent Fasting vs Vow Fasting
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Intermittent Fasting
This app helps you track your intermittent fasting journey with a simple, private interface. It offers a free tier with essential tracking tools and an optional one-time purchase for advanced features like water and protein tracking, and deeper insights. Your data remains on your device for maximum privacy.
- Intermittent fasting timer
- Metabolic phase tracking
- Water and protein tracking
- Home and Lock Screen widgets
- Apple Watch integration
- On-device AI insights
- Private data storage
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Fasted is a calm, private intermittent-fasting tracker for iPhone, iPad and Apple Watch. Start a fast in one tap, follow your metabolic phases, and build a streak — no account, no analytics, no ads. Now made for iPad: your timer and your stats side by side, in landscape or portrait, with Split View and keyboard shortcuts. On iPhone, turn it sideways — landscape works too. The fasting basics are free, forever. When you want more, unlock Fasted Pro with a single one-time purchase. Buy once, own forever. No subscription, ever. WHAT'S FREE • Fasting timer — start now, start from your last meal, end, or cancel • All 8 preset plans, plus a custom plan • Metabolic phase tracking • iPhone, iPad and Apple Watch, always in sync • Apple Watch fasting page and complication • Fasting widgets for your Home and Lock Screen • Goal-reached and fasting-window reminders • Current streak, this-week hours, and your recent history • Light, dark, and system themes WHAT FASTED PRO UNLOCKS • Water tracking — goal, one-tap buttons you can customise, pace, reminders, on Watch and widgets • Protein tracking — set a daily goal and quick-add in a tap; rings on iPhone and Watch • Deeper stats — longest streak, 30-day adherence, weekly trends, water and protein streaks, 14-day phase history • On-device AI weekly insight • Phase-transition notifications • Live Activity and Dynamic Island • Siri, Shortcuts, and App Intents Buy once. Own forever. No subscription. ALREADY BOUGHT FASTED? If you previously purchased Fasted, you already own Pro — it unlocks automatically, free, the moment you update. Thank you for being an early supporter. PRIVATE BY DESIGN No account. No analytics. No tracking. Your fasting, water, and protein data stay on your device and sync only through your private iCloud. Optional Apple Health integration for fasts, water and dietary protein, read and write, with your permission. Protein tracking is deliberately simple — a daily goal and quick-add, like the water tracker. No barcode scanning, no calorie or macro counting.
Vow Fasting
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Vow is a refined intermittent fasting tracker built for calm daily discipline. Start a fast, follow your progress, and understand each stage as your body moves through metabolic phases like digesting, fat burning, ketosis, and autophagy. Vow keeps fasting focused with a precise timer, clear progress, thoughtful reminders, and a minimal dark design made for daily practice. Whether you follow 16:8, 18:6, 20:4, 24-hour fasts, or custom fasting goals, Vow helps you track every session with clarity. FEATURES • Elegant fasting timer with real-time progress • Intermittent fasting plans including 16:8, 18:6, 20:4, and 24h • Metabolic phase tracking from digesting to fat burning, ketosis, and autophagy • Fasting history, streaks, and weekly insights • Custom and extended fasting durations • Goal reminders and phase update notifications • Minimal dark interface with premium themes • Home Screen widgets and Live Activity support Vow Pro Unlock extended fasting protocols, custom durations, premium themes, advanced insights, and premium widgets. Vow is not medical advice. If you have a medical condition, are pregnant, under 18, or have a history of eating disorders, consult a healthcare professional before fasting. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://vowfasting.com/privacy
Screenshots
Verdict
The clearest difference is device support: Intermittent Fasting at 3 against Vow Fasting's 1. Vow Fasting's advantage is iOS requirement (17.6 vs 26.0). On price, update cadence, ads and in-app purchases 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. Intermittent Fasting sells 1 one-off in-app purchase and Vow Fasting sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Intermittent Fasting ships an update every 3 weeks, Vow Fasting fortnightly. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.
| Parameter | Intermittent Fasting | Vow Fasting |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 26.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 7 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Cliapis | FILIP LUCCA KEJSER DAMICI |
In-app purchases
Intermittent Fasting
- Fasted Pro$4.99
Vow Fasting
- Vow Pro Monthly$4.991 Month
- Vow Pro Annual$39.991 Year
Questions
Is Intermittent Fasting free?
Is Vow Fasting free?
Do Intermittent Fasting or Vow Fasting have ads?
Which is updated more often, Intermittent Fasting or Vow Fasting?
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