Fastable vs Intermittent
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
Intermittent
This app tracks your fasting progress by showing real-time biological phases like ketosis and autophagy. It provides science-backed explanations for each stage and supports various fasting protocols without requiring an account or subscription.
- Real-time biological phase tracking (Fed, Lipolysis, Ketosis, Autophagy)
- Support for multiple fasting protocols (12:12 to 72-hour fasts)
- Free science library with cited primary sources
- Adaptive hydration target
- Weight and progress tracking with trend analysis
- Private sharing circle with applause-only responses
- Home screen widget and cross-device sync
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The intermittent fasting tracker that shows the biology happening inside you in real time: Fed, Lipolysis, Ketosis, Autophagy. Ad free fasting app. No account required. Most fasting apps give you a countdown clock and a streak to protect. Intermittent does something different. It shows you exactly which biological phase your body is in right now, and explains the science behind it with cited primary sources, not marketing copy. If you have ever wondered how to track fasting properly, or what is actually happening during a fast, this is the fasting tracker built for that question. WHY FASTING WORKS Intermittent fasting works because of what happens between meals, not just the absence of food. As your fast progresses, your body moves through distinct phases: burning through glucose reserves, shifting into fat burning lipolysis, entering ketosis, and eventually triggering autophagy, the cellular repair process linked to longevity and metabolic health. Understanding these transitions is what separates intentional fasting from guesswork. Intermittent maps every stage so your goals are grounded in biology, not motivation. KEY FEATURES PHASE AWARE FASTING TIMER A real time timer that tracks six biological phases: Fed, Early Fasting, Lipolysis, Ketosis, Autophagy, and Deep Fast. Each phase links to a free science article with primary sources cited. EVERY FASTING PROTOCOL, ONE APP Supports 12:12, 14:10, 16:8, 18:6, 20:4, OMAD (One Meal A Day), 36 hour, 48 hour, and 72 hour fasts. FREE FASTING SCIENCE LIBRARY A full library of fasting articles covering intermittent fasting, ketosis, autophagy, insulin response, and more. No subscription. No account. No paywall. SMART HYDRATION TARGET A science backed hydration goal that adapts to your weight, sex, age, and fasting duration. WEIGHT AND PROGRESS TRACKING Log your weight after each fast and track trends over time. Includes streak heatmap, phase reach history, and estimated fat vs glucose energy usage. PRIVATE CIRCLE AND END OF FAST REFLECTION Share your fast with a small private group. Applause only responses. No comparison. No gamification. HOME SCREEN WIDGET AND CROSS DEVICE SYNC Keep your fasting timer visible with a home screen widget. Your data syncs across devices privately without third party trackers. WHO IT IS FOR Intermittent is built for adults who want to understand fasting, not be coached through it. If you follow research on metabolic health, read about longevity, or want a fasting routine grounded in biology rather than points or streaks, this app is for you. Suitable for both beginners and experienced fasters. HOW IT WORKS Choose your fasting protocol, from 12:12 to extended fasts Start your timer and track your biological phase in real time Tap any phase to read the science and log your reflection at the end No account required to start. No subscription required to access the library.
Screenshots
Verdict
The clearest difference is in-app purchases: Intermittent at none against Fastable's 3. Intermittent also leads on ads (none vs shown). On price, update cadence, 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. Intermittent asks for nothing beyond the download.
Fastable ships an update every 2 weeks, Intermittent every 10 days. The most recent releases landed on September 29, 2026 and October 14, 2026 respectively.
| Parameter | Fastable | Intermittent |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (46 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 46 — better |
| Update frequency | Every 2 weeks | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 55 MB | 39 MB |
| Age rating | 4+ | 17+ |
| Developer | Islambek Abdykarim Uulu | Rohit Kumar |
In-app purchases
Fastable
- Fastable Pro (1 Month)$2.991 Month
- Fastable Pro (1 Year)$11.991 Year
- Fastable Pro (Lifetime)$29.99
Intermittent
No in-app purchases









