Streak Fast vs Vow Fasting
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Streak Fast
This app helps you track your intermittent fasting journey with a visual calendar that fills in with each completed fast. Monitor your streaks, view weekly progress, and access a timer that runs even when the app is closed. It prioritizes user privacy with no account creation or ads.
- Visual fasting calendar
- Streak and progress tracking
- Offline functionality
- No account or ads required
- Support for multiple fasting styles
- Mood and weight tracking
- Calendar sync with iPhone Calendar
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Streak Fast is a quiet, beautiful way to track your intermittent fasting. Every fast you complete fills a square on your calendar. The more you fast, the more your year fills in. Watch your streak grow. See your best weeks. Spot your rough ones. And do it all without signing up for anything, giving away your email, or wading through ads. Your data stays on your phone. It syncs across your Apple devices through iCloud — the same way your notes and photos do. We never see it. We couldn't if we tried. WHAT MAKES IT DIFFERENT • No account to create. No password to remember. Just open the app and go. • No ads. No trackers. No pop-ups. • Works completely offline. Your logs are always there. • Looks beautiful on iPhone — pure black and white, nothing extra. WHAT IT DOES • A calendar that fills in with every fast you complete • Current streak and longest streak at a glance • A timer that keeps running even when you close the app • Helpful nudges at milestones — 4, 8, 12, 16, and 20 hours in • Support for every popular fasting style — 12:12, 14:10, 16:8, 18:6, 20:4, OMAD, and 5:2 • One-tap logging with quick hour buttons • Mood tracking during your fast • Weight tracking with a clean trend line • Set a weight goal and watch your progress • A Sunday weekly recap of how your week went • Calendar color themes — Classic is free, more with Pro • Optional calendar sync — your completed fasts can show up in your iPhone Calendar • Export your fasting history to CSV • Achievements you actually earn • A daily morning quote to start your fast strong YOUR PRIVACY • No sign-up, no email, no account • No ads, no analytics, no trackers • Your data lives in your private iCloud — same as your photos • Delete the app and your iCloud data is still yours • Syncs across all your Apple devices automatically STREAK FAST PRO • $4.99 a month or $29.99 a year • 3-day free trial on the yearly plan • Unlocks nine premium calendar themes • Unlocks weight trend insights and the home weight-trend card • Unlocks your full fasting and weight history (free shows the last 7 days) • Restore purchases on any new device in one tap • Cancel anytime in Settings — the free features stay forever One calendar. Every fast. Nothing else. Subscription auto-renews at the price shown unless cancelled at least 24 hours before the current period ends. Manage or cancel anytime in your App Store Settings. Terms of Use: https://www.guinto.tech/terms-of-use Privacy Policy: https://www.guinto.tech/privacy-policy
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 iOS requirement: Vow Fasting at 17.6 against Streak Fast's 26.4. 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. Streak Fast sells 2 in-app purchases, starting at $2.99 per month 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.
Streak Fast ships an update every 9 days, Vow Fasting fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Streak Fast | Vow Fasting |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone |
| Requires iOS | 26.4 | 17.6 — better |
| Further details — not scored | ||
| Size | 5 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Guinto Limited | FILIP LUCCA KEJSER DAMICI |
In-app purchases
Streak Fast
- Monthly Pro Plan$2.991 Month
- Yearly Pro Plan$17.991 Year
Vow Fasting
- Vow Pro Monthly$4.991 Month
- Vow Pro Annual$39.991 Year









