Fastual vs ByteFast
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Fastual
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Fastual - Your Fasting Ritual, Visualized See what's happening inside your body as you fast. Fastual tracks your metabolic phases in real time - from anabolic digestion through ketosis and autophagy - with a calm, organic interface designed for daily use. REAL-TIME METABOLIC PHASES Watch your body progress through 7 fasting stages: Anabolic β Catabolic β Fat Burning β Ketosis β Autophagy β Deep Repair β Extended. Each phase comes with a clear explanation of what's happening biologically, so you understand your fast - not just time it. ONE-TAP FASTING TIMER Start fasting instantly. Choose from popular protocols like 16:8, 18:6, 20:4 (Warrior), or OMAD (23:1). The expanding ring visualizes your progress without anxiety - no ticking clock, just calm momentum. STREAK & HISTORY TRACKING Build consistency with streak tracking. Review your complete fasting history, see your average fast duration, and watch your streaks grow over time. Every completed fast is logged automatically. WATER TRACKER Stay hydrated during your fast with a quick-add water logger. Customize your glass size, set reminders, and keep your hydration on track - all without leaving the timer screen. PRIVACY BY DESIGN Your biological data stays on your device. No account creation. No cloud sync. No tracking. Fastual works entirely offline - because your fasting journey is yours alone. DARK MODE FIRST The "Bioluminescent" interface is designed for late-night fasting checks and early-morning starts. Reduced eye strain, premium aesthetics, and a design that feels like a ritual - not a fitness app. FASTUAL IS FOR YOU IF: β’ You want to understand your metabolic phases, not just count hours β’ You value clean, calm design over feature-heavy fitness apps β’ You prefer privacy and offline functionality over social features β’ You're building a sustainable fasting habit through streaks and consistency Available in English and Albanian. MEDICAL DISCLAIMER Fastual is a wellness tracking utility designed for informational and educational purposes only. It is not a medical device and does not provide medical advice, diagnosis, or treatment. The metabolic phases described are general educational summaries of biological processes and should not be interpreted as personalized medical guidance. Intermittent fasting is not suitable for everyone, including pregnant or nursing women, individuals with a history of eating disorders, or those with certain medical conditions. Always consult a physician or healthcare professional before starting any fasting protocol.
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.
Screenshots
Verdict
The clearest difference is ads: ByteFast at none against Fastual's shown. ByteFast also leads on update cadence (every 2 weeks vs every 6 weeks). Fastual's advantage is iOS requirement (15.1 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.
Fastual ships an update every 6 weeks, ByteFast every 2 weeks. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.
| Parameter | Fastual | ByteFast |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Every 2 weeks β better |
| Ads | Yes | No β better |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch β better |
| Requires iOS | 15.1 β better | 18.0 |
| Further details β not scored | ||
| Size | 52 MB | 11 MB |
| Age rating | 12+ | 4+ |
| Developer | Redjon Prengzi | BYTESEED LLC |
In-app purchases
Fastual
No in-app purchases
ByteFast
No in-app purchases









