Fastable vs ONE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fastable
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UNLOCK THE POWER OF INTERMITTENT FASTING WITH AI Fastable is not just another timer; it’s your personal AI-powered health companion. Whether you want to lose weight, boost energy, or get fit, Fastable guides you through every stage of intermittent fasting with science-backed insights and a beautiful, easy-to-use design. No strict diets. No yo-yo effect. Just proven results. KEY FEATURES: SMART FASTING TIMER • Track your fasts with a single tap. • Supports all popular protocols: 16:8 (Beginner), 18:6, 20:4 (Warrior), and OMAD (One Meal A Day). • Live Activity & Dynamic Island support: See your timer without unlocking your phone. • Beautiful widgets for your Home & Lock Screen. AI COACH "FASTY" • Have questions about hunger, keto, or what to eat? Ask Fasty! • Powered by advanced AI (Gemini), Fasty acts as your 24/7 personal nutritionist and motivation coach. • Get personalized tips tailored to your body metrics. BODY STATUS INSIGHTS • Visualize what’s happening inside your body in real-time. • Track key stages: Blood Sugar Rise, Drop, Ketosis, and Autophagy. • Understand the science behind burning fat. HYDRATION TRACKER • Log your water intake to stay hydrated and speed up metabolism. • Smart reminders ensure you never forget to drink water. WEIGHT & STATS • Sync automatically with Apple Health (HealthKit). • Visualize your weight loss journey with beautiful charts. • Analyze your fasting history and streaks. WHY FASTABLE? Beginner Friendly: Perfect for those new to fasting. Privacy First: Your health data stays private. We don't sell your data. Ad-Free Option: Enjoy a focused, distraction-free experience with Fastable Pro. HEALTH DISCLAIMER: Fastable is intended for wellness purposes only and is not a medical application. Please consult with a healthcare professional before starting any fasting protocol, especially if you have a medical condition. Join thousands of users transforming their lives. Download Fastable now and start your journey to a healthier you! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/fastable-privacy-policy
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 ads: ONE at none against Fastable's shown. Fastable's advantage is update cadence (every 2 weeks vs every 4 weeks). 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. Fastable sells 3 in-app purchases, starting at $2.99 per month and ONE sells 6 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Fastable ships an update every 2 weeks, ONE every 4 weeks. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.
| Parameter | Fastable | ONE |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 weeks — better | Every 4 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 55 MB | 49 MB |
| Age rating | 4+ | 17+ |
| Developer | Islambek Abdykarim Uulu | Create Rush |
In-app purchases
Fastable
- Fastable Pro (1 Month)$2.991 Month
- Fastable Pro (1 Year)$11.991 Year
- Fastable Pro (Lifetime)$29.99
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









