VOID vs Intermittent Fasting
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VOID
This AI-powered coach visualizes your fasting progress, from blood sugar depletion to fat burning. Log meals instantly with photo recognition or voice commands, and receive personalized nutrition and exercise advice. Gamified motivation and smart hydration tracking help build healthy habits.
- AI-powered nutrition coaching
- Visualized fasting progress
- AI meal logging via photo/voice
- Deep Apple Watch integration
- Personalized nutrition advice
- Gamified motivation and rewards
- Smart hydration tracking
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VOID isn't just another fasting app — it's your AI-powered nutrition coach. [Science-Based Fasting, Visualized] Track your fasting progress in real time — from blood sugar depletion to fat burning and cellular autophagy. Every metabolic stage is clearly displayed with dynamic breathing glow animations that let you feel your body's rhythm. [AI Photo Recognition — Log Meals in 3 Seconds] Snap a photo and AI instantly identifies food types, estimates calories, protein, carbs, and fat. Don't want to take a photo? Just say "a bowl of rice and a fried egg" — AI understands instantly. [Deep Apple Watch Integration] Everything on your wrist — fasting countdown, today's calorie rings, voice meal logging, and one-tap water tracking. 4 watch face complications keep your fasting status visible at a glance. [6 Stunning Home Screen Widgets] From cyber-punk to fresh nature, from macaron-cute to Apple Vision spatial style — there's always one to brighten your home screen. [AI Personal Coach] Based on your fasting history, diet records, and weight trends, your AI coach delivers personalized nutrition advice and exercise guidance daily — not templates, but plans truly made for you. [Gamified Motivation] Build streaks, earn "Cell Coins," and unlock achievement badges. Discipline doesn't have to be boring — every day of consistency is celebrated. [Smart Hydration Tracking] Set daily goals, log water with one tap, and watch your progress ring fill up. Staying hydrated becomes a habit. [Privacy First] All data stays on your device. We never upload, analyze, or sell your health data. Your body data belongs to you, and only you.
Intermittent Fasting
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Biwo makes intermittent fasting simple and fun. Track your fasting sessions with a beautiful circular timer, see your progress through different fasting phases, and build healthy habits effortlessly. Choose your fasting method: • 16:8 - The most popular method • 18:6 - For experienced fasters • 20:4 - Advanced fasting • OMAD (23:1) - One Meal A Day Features: • Beautiful circular timer with real-time progress • Scan meals for instant calorie & nutrition info • Fat burning & autophagy phase tracking • Complete fasting history • Day Streak tracker to keep you motivated • Start a fast in just one tap • Works completely offline - no account needed • Personalized onboarding Start your fasting journey today with Biwo! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Screenshots
Verdict
The clearest difference is in-app purchases: VOID at none against Intermittent Fasting's 3. Intermittent Fasting's advantage is update cadence (every 3 days vs every 3 weeks). On price, ads, 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. Intermittent Fasting sells 3 in-app purchases, starting at $1.99 per 7 days. VOID asks for nothing beyond the download.
VOID ships an update every 3 weeks, Intermittent Fasting every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | VOID | Intermittent Fasting |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 50 MB | 68 MB |
| Age rating | 17+ | 4+ |
| Developer | 河南雀科信息科技有限公司 | Sylvain Fertons |
In-app purchases
VOID
No in-app purchases
Intermittent Fasting
- Biwo Pro Weekly$1.997 Days
- Biwo Pro Monthly$4.991 Month
- Biwo Pro Yearly$49.991 Year
Questions
Is VOID free?
Is Intermittent Fasting free?
Do VOID or Intermittent Fasting have ads?
Which is updated more often, VOID or Intermittent Fasting?
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