Ember Fasting vs Vow Fasting
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ember Fasting
This app provides a simple and beautiful intermittent fasting timer with a widget-first design. It offers precise tracking of fasting progress, various popular protocols, and metabolic insights for Pro users. The app focuses on a clean user experience without ads or dark patterns.
- Widget-first design for home and lock screens
- Fast launch time and smooth animations
- Live metabolic process tracking (Pro)
- Support for 5 popular fasting protocols
- Streak tracking and milestone celebrations
- Smart notifications for fast completion
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The fasting timer that respects your time and your wallet. Ember is a beautifully crafted intermittent fasting timer that just works. No account required. No ads. No dark patterns. Just a precise, reliable timer with stunning widgets and honest pricing. WIDGET-FIRST DESIGN Check your fasting progress without opening the app. Ember offers 7 widget styles: small interactive, medium, large, Lock Screen, and StandBy. Your progress is always a glance away. Start and stop fasts right from your home screen. BEAUTIFUL & FAST Launches in under a second. Your body runs multiple metabolic processes during a fast: fat burning, ketosis, autophagy. They overlap and build on each other gradually. Ember tracks your progress with smooth animations and warm, purposeful design. Choose from 10 curated color themes or set your own custom accent color. Pick from 8 app icon styles to match your aesthetic. METABOLIC INSIGHT (PRO) Fasting isn't a series of stages you enter and leave, it's overlapping biological processes that build on each other. Pro unlocks live metabolic process tracking: see fat burning, ketosis, and autophagy ramping simultaneously with intensity indicators. Tap the info icon during any fast to see exactly what's happening in your body. EVERYTHING YOU NEED, NOTHING YOU DON'T - All 5 popular protocols: 16:8, 18:6, 20:4, OMAD, or create your own - Streak tracking with milestone celebrations - History with weekly calendar view - Basic stats to track your progress - Smart notifications for fast completion, zone transitions, and daily reminders HONEST PRICING The full fasting timer is free. No trial traps. No surprise charges. Pro unlocks metabolic insight, extra widget styles, themes, icons, and advanced notifications for $1.99/month, $14.99/year, or $29.99 lifetime. That's it. PRIVACY BY DESIGN Your data never leaves your device. No account. No analytics. No tracking. Our App Store privacy label is "Data Not Collected"...and we mean it. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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
Ember Fasting and Vow Fasting are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Ember Fasting sells 3 in-app purchases, starting at $1.99 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.
Ember Fasting ships an update every 2 weeks, Vow Fasting fortnightly. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.
| Parameter | Ember Fasting | Vow Fasting |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 3 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Chris Schrade | FILIP LUCCA KEJSER DAMICI |
In-app purchases
Ember Fasting
- Ember Pro Monthly$1.991 Month
- Ember Pro Annual$14.991 Year
- FastApp Pro Lifetime$29.99
Vow Fasting
- Vow Pro Monthly$4.991 Month
- Vow Pro Annual$39.991 Year








