FastSloth vs Fasting Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FastSloth
This app helps you track intermittent fasting with customizable schedules and real-time indicators of your body's stages. It also includes hydration logging, weight tracking with visual progress charts, and smart notifications to keep you on track. All your data stays private on your device.
- Customizable fasting schedules
- Real-time ketosis and autophagy indicators
- Hydration logging and reminders
- Weight tracking with progress charts
- Streak tracking and milestone badges
- Home screen widgets
- Private, no account required
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No account. No subscription. No data leaves your phone. FastSloth is a private intermittent fasting tracker with fasting insights, **calorie tracking, a personal recipe book**, hydration and weight tracking, Home Screen widgets, and **custom themes with a Theme Builder**. Start fasting in one tap. ## NEW: CALORIE TRACKER & RECIPE BOOK Track your daily calories alongside your fasting progress. Log meals and foods throughout the day, see your calorie totals at a glance, and keep everything together in one simple place. Save your favorite meals in your personal Recipe Book so you can quickly reuse recipes and keep track of what you eat. ## THEMES & THEME BUILDER Choose a built-in theme or create your own. Customize colors and appearance with the Theme Builder and make FastSloth feel like yours. ## FASTING MADE SIMPLE Start with one tap. Choose 16:8, 14:10, 18:6, 20:4, OMAD, or create a custom fasting schedule. See estimated fasting stages as you progress, including fat burning, ketosis, and autophagy. ## CALORIE TRACKING Log your meals and track your daily calorie intake. See how your nutrition fits alongside your fasting schedule, hydration, and weight progress. ## RECIPE BOOK Save and organize your favorite recipes directly in FastSloth. Keep the meals you make most often close at hand and quickly reuse them when tracking what you eat. ## HYDRATION Log water in seconds, track daily progress, and set hydration reminders. See your progress from the Home Screen with the hydration widget. ## WEIGHT & INSIGHTS Track your weight over time with simple charts that make trends easy to see. ## SMART NOTIFICATIONS * Fast start and end alerts * Fasting stage notifications * Water reminders ## STREAKS & MILESTONES Track completed fasts, build streaks, and unlock milestone badges. ## HOME SCREEN WIDGETS See your current fast, hydration progress, and streak without opening the app. ## PRIVATE BY DESIGN No account. No subscription. Your fasting history, calorie logs, recipes, weight, hydration logs, and settings stay on your device. ## FASTING PROTOCOLS * **16:8** * **14:10** * **18:6** * **20:4** * **23:1 / OMAD** * **Custom schedules** Private. Personal. Lightweight. **Download FastSloth and start fasting your way.**
Fasting Tracker
This app helps you build and maintain an intermittent fasting routine. It offers a simple timer, progress tracking, and insights into your body's responses during fasting periods. Designed for beginners and experienced users alike, it provides gentle encouragement and clear guidance.
- Intermittent fasting timer
- Customizable fasting schedules
- Real-time progress tracking
- Body insights during fasting
- Guidance on fasting-friendly drinks
- Gentle and supportive approach
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Timo - your simple, friendly fasting tracker Build a fasting routine that actually feels good. Timo is a simple, supportive intermittent fasting tracker designed to help you stay consistent - without pressure, guilt, or “gym bro” energy. Whether you’re just starting out or refining your routine, Timo helps you track your fast, understand what’s happening in your body, and stay motivated day by day. Track your fast with ease - Start, stop, and adjust your fasting timer in seconds. Choose from popular schedules like 14:10, 16:8, 18:6, or create your own. See progress that keeps you going - Watch your fasting time build in real-time, unlock milestones, and stay motivated with clear, encouraging feedback. Understand what’s happening in your body - Learn when fat burning begins, when ketosis kicks in, and how your body adapts during your fast. Know what you can (and can’t) have - Simple guidance on drinks during fasting - no confusion, no overcomplication. A friendly approach that sticks - Timo is designed to support you, not pressure you. Gentle encouragement, clean design, and a calm experience that helps you stay consistent. Perfect for: • intermittent fasting beginners • experienced fasters refining their routine • anyone looking for a simple fasting timer or fasting tracker • building sustainable habits for weight loss and health
Screenshots
Verdict
The clearest difference is in-app purchases: Fasting Tracker at none against FastSloth's 1. Fasting Tracker also leads on ratings volume (16 vs 4) and iOS requirement (13.0 vs 26.0). FastSloth's advantage is rating (5.0 vs 4.8) and update cadence (every 6 days vs fortnightly). On price, ads and device support 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. FastSloth sells 1 one-off in-app purchase. Fasting Tracker asks for nothing beyond the download.
FastSloth holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 16 respectively.
FastSloth ships an update every 6 days, Fasting Tracker fortnightly. The most recent releases landed on September 30, 2026 and October 8, 2026 respectively.
| Parameter | FastSloth | Fasting Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.8 (16 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 4 | 16 — better |
| Update frequency | Every 6 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 25 MB |
| Age rating | 12+ | 4+ |
| Developer | Darren Paul | Helen Seymour |
Customer experience
FastSloth
Fasting Tracker
In-app purchases
FastSloth
- Premium Lifetime$1.99
Fasting Tracker
No in-app purchases







