VOID vs Fasting Timer
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.
Fasting Timer
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A focused intermittent-fasting timer that helps you build a consistent routine. Start a fast in seconds, see your progress at a glance, and review your history over time. • Simple fasting timer with progress display • Popular schedules including 16:8 • Start, finish, or cancel a fast anytime • Review fasting history and streaks • Track body weight in kg or lb • Private, on-device data Kufukun is designed for clarity and consistency without unnecessary complexity.
Screenshots
Verdict
The clearest difference is in-app purchases: VOID at none against Fasting Timer's 1. VOID also leads on update cadence (every 3 weeks vs every 6 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. Fasting Timer sells 1 one-off in-app purchase. VOID asks for nothing beyond the download.
VOID ships an update every 3 weeks, Fasting Timer every 6 weeks. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.
| Parameter | VOID | Fasting Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch — better | iPhone |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 50 MB | 51 MB |
| Age rating | 17+ | 12+ |
| Developer | 河南雀科信息科技有限公司 | Kenta Nagato |
In-app purchases
VOID
No in-app purchases
Fasting Timer
- プレミアム(買い切り)$2.99









