ByteFast vs Simple Fast
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ByteFast
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ByteFast is a premium, minimal fasting companion designed to help you reach your metabolic health goals with precision and style. Whether you're a beginner or an experienced faster, ByteFast provides the tools you need to stay consistent and informed. Key Features: Proactive Fasting Coach: Real-time insights into your body's metabolic phasesβfrom feeding and transition to fat burning and autophagy. Live Activities & Dynamic Island: Track your progress directly from your Lock Screen or Dynamic Island without ever opening the app. Interactive Home Screen Widgets: Stay motivated with beautiful ring views and a 14-day activity heatmap that visualizes your consistency. Seamless iCloud Sync: Your fasting data is securely backed up and synced across all your devices automatically. Flexible Scheduling: Choose from proven presets like 16:8 and OMAD, or create custom fasting windows that fit your lifestyle. Premium Haptics: Feel your progress with carefully tuned haptic feedback for milestones and goal completion. Take control of your health with ByteFastβthe fast, smart, and beautiful way to track your intermittent fasting journey.
Simple Fast
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Take control of your intermittent fasting journey with Simple Fast β Fasting Tracker. Whether you follow 16:8, 18:6, 20:4, or 12:12 fasting plans, Simple Fast gives you everything you need to stay on track β without complicated setup or unnecessary features. FASTING TIMER Start and stop your daily fasting session with one tap. A clear countdown shows exactly how much time remains, while the elapsed timer shows your progress. Know at a glance whether you are in a fasting window or an eating window. HISTORY Review every session at a glance. Each entry shows start time, end time, total duration, and completion status. Check your current streak and average fasting time β all in one place. Filter sessions by day to find exactly what you need. STATISTICS & INSIGHTS Visualize your fasting hours per day, completed days, and streaks with easy-to-read charts. Track your current streak and longest streak to stay motivated. Switch between chart types to explore your data the way you prefer. WEIGHT LOG Log your weight in kilograms or pounds. View a trend chart to see how your weight changes over time, and scroll through your full weight history. Quick-add today's weight right from your profile. BMI TRACKER Set your height and let Simple Fast calculate your body mass index automatically from your logged weight. A visual semi-circular gauge shows exactly where your BMI falls across four ranges β Underweight, Normal, Overweight, and Obese β with a color-coded legend and category label. Track how your BMI shifts over time as you log new weights. PERSONALIZED SETTINGS Choose your preferred fasting plan and adjust it anytime. Enter your height in centimeters or feet and inches so your BMI stays accurate. Toggle reminders so you never miss a fasting window. Switch between metric and imperial units for weight and height display. SMART COMPLETION LOGIC At the end of each session, Simple Fast asks whether you completed your fast. The app automatically compares your actual fasting time against your plan and marks the session accordingly β keeping your streaks accurate and honest. REMINDERS Enable push notifications to receive timely reminders when your fasting window begins or ends. Stay consistent without having to watch the clock. HOME SCREEN WIDGET Add the Simple Fast widget to your home screen for instant visibility into your fasting progress. See at a glance whether you are fasting, how much time remains, and your current streak β all without opening the app. Tap the widget to jump straight into the timer. PRIVACY FIRST Simple Fast does not collect personal health data. It tracks fasting time only. All data stays on your device. Review the privacy policy and disclaimer at any time from Settings. WHY SIMPLE FAST? β’ No account required β start tracking immediately β’ Clean, distraction-free interface β’ One session per day β simple and focused β’ BMI tracking with visual gauge built in β’ Weight trend charts to monitor progress β’ Home screen widget for at-a-glance fasting status β’ Works completely offline β’ Free to use Download Simple Fast β Fasting Tracker today and build the fasting habit that sticks. Disclaimer: This app does not provide medical advice. Please consult a qualified healthcare professional before starting any fasting routine. The app creators are not responsible for any health issues that may occur. Users should seek proper medical guidance before practicing fasting.
Screenshots
Verdict
The clearest difference is ads: ByteFast at none against Simple Fast's shown. ByteFast also leads on update cadence (every 2 weeks vs every 2 months). Simple Fast's advantage is iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ByteFast ships an update every 2 weeks, Simple Fast every 2 months. The most recent releases landed on October 12, 2026 and September 28, 2026 respectively.
| Parameter | ByteFast | Simple Fast |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks β better | Every 2 months |
| Ads | No β better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 18.0 | 15.0 β better |
| Further details β not scored | ||
| Size | 11 MB | 45 MB |
| Age rating | 4+ | 17+ |
| Developer | BYTESEED LLC | Duc Dang Ngoc |
In-app purchases
ByteFast
No in-app purchases
Simple Fast
No in-app purchases









