Fasting Timer vs ONE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fasting Timer
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Track your intermittent fasting with ease! Fasting Timer helps you follow popular IF protocols like 16:8, 18:6, 20:4, and OMAD. Watch your progress with a beautiful circular timer and see which fasting phase you're in - from fat burning to ketosis to autophagy. ALL FASTING PHASES FREE: - Fed State (0-4h): Digestion active - Early Fasting (4-8h): Fat burn starting - Fasting State (8-12h): Growth hormone rising - Fat Burning (12-16h): Strong fat burn - Ketosis (16-20h): Mental clarity - Autophagy (20h+): Cell renewal KEY FEATURES: - Beautiful circular countdown timer - Real-time fasting phase tracking - Multiple IF protocols (16:8, 18:6, 20:4, OMAD) - Detailed fasting history - Weekly statistics & streak tracking - Home Screen Widget - No login required - Dark mode design Start your fasting journey today - completely free!
ONE
This app simplifies intermittent fasting with a one-tap timer and progress tracker. It guides users through fasting stages, offers various plans, and provides insights into body changes. The focus is on building consistent habits without unnecessary complexity.
- One-tap fasting timer
- Live fasting stage tracking
- Multiple fasting plan options
- Daily streak tracking
- Weight and water tracking
- AI-powered progress summaries
- Offline functionality
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Fasting made simple. Start a fast in one tap, watch your body move through each stage, and build the streak that actually changes things. ONE is an intermittent fasting tracker for people who want the habit, not the homework. No account. No clutter. Just the timer, the stages, and your progress. CHOOSE YOUR PLAN • 12:12, 14:10, 16:8, 18:6, 20:4 and OMAD (23:1) • Flexi mode for open-ended fasts • A difficulty rating on every plan, so you pick one you'll actually keep • Custom Timer for any length you like — free, no upgrade • Change plan any time. Nothing is locked in. WATCH WHAT'S HAPPENING • Live fasting stages: blood sugar falling, fat burning, ketosis, autophagy • Know exactly when the next stage arrives • Plain-language explanation of what your body is doing, and why STAY ON TRACK • Reminders when your fast starts and ends • A notification as you reach each new stage • Fix your start or end time when life happens • Daily streaks that reward consistency, not perfection • Apple Health: your fasts written out, your weight read in — free SEE YOUR PROGRESS • Every fast logged automatically, nothing to fill in • Your recent fasts, free forever WHAT ONE PREMIUM ADDS • Your full fasting history, not just the last few • AI Coach — weekly and monthly written analysis of how you actually fast, what changed, and what to try next • Trends: streak calendar, fasting-hours charts and weight trend • Protein tracker, with a daily target set from your weight • Water tracking against a goal, right on the timer • Your own Quick Start lengths, tuned to the fasts you really do • Apple Watch app with complications — start and end a fast from your wrist • Home Screen widget and a Live Activity on your Lock Screen The timer, every plan, the stages and the Custom Timer are free. Forever. BUILT TO STAY OUT OF THE WAY • Start fasting in under a minute — no sign-up, no email • Optional account, so your history follows you to a new phone SUBSCRIPTION ONE Premium is an auto-renewing subscription, available monthly or annually. Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours of the end of that period. Manage or cancel any time in your Apple Account settings. Medical disclaimer: ONE is for general wellness only and does not provide medical advice. Talk to a qualified healthcare professional before starting any fasting programme, particularly if you are pregnant, breastfeeding, diabetic, under 18, or have a history of disordered eating. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.fastingtime.co/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Fasting Timer at none against ONE's 6. Fasting Timer also leads on update cadence (daily vs every 4 weeks) and iOS requirement (13.0 vs 15.1). ONE's advantage is ads (none vs shown) and device support (4 vs 2). On price 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. ONE sells 6 in-app purchases, starting at $2.99 per 7 days. Fasting Timer asks for nothing beyond the download.
Fasting Timer ships an update daily, ONE every 4 weeks. The most recent releases landed on September 12, 2026 and October 1, 2026 respectively.
| Parameter | Fasting Timer | ONE |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Daily — better | Every 4 weeks |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 33 MB | 49 MB |
| Age rating | 4+ | 17+ |
| Developer | Batuhan Senavci | Create Rush |
In-app purchases
Fasting Timer
No in-app purchases
ONE
- Standard Weekly$2.997 Days
- Premium Weekly$4.997 Days
- Standard Monthly$4.991 Month
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- Premium Monthly$9.991 Month
- Standard Yearly$49.991 Year
- Premium Yearly$99.991 Year









