Fast vs Fasting Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fast
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Can I eat right now? Fast:Protocol checks today's planned eating hours and gives you one clear answer: YES or NO. It also shows when that answer will change, so you can follow your schedule without starting a timer or doing time math. Use Fast:Protocol to: • Set the eating hours you use on a normal day • Create weekly plans for days that follow a different schedule • Change one date without changing the rest of your week • See your current answer, countdown, and next scheduled change • Check Home Screen and Lock Screen widgets • Review previous days and browse the week ahead • Choose reminders for when eating hours begin and one hour before they end Set your schedule once. Check your answer whenever you need it.
Fasting Timer
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Fasting Timer - SLOX is a lightweight intermittent-fasting countdown timer designed to keep tracking simple. Features: • Preset protocols: 16:8, 18:6, 20:4 — plus a fully custom protocol • Live countdown showing time elapsed and time remaining • Past-fast history with completion status • Quick-start and one-tap stop • Sound & haptic toggles • 7 languages supported (English / 한국어 / 日本語 / 简体中文 / 繁體中文 / Español / Português) NOT a medical device. The timer simply counts down the duration you choose. It does not measure metabolic state, glucose, or any biomarker, and it does not diagnose any condition. Intermittent fasting may not be safe for everyone (pregnant or breastfeeding individuals, people with diabetes, eating disorders, or other medical conditions). Consult a healthcare professional before starting any fasting routine.
Screenshots
Verdict
The clearest difference is ads: Fast at none against Fasting Timer's shown. Fasting Timer's advantage is update cadence (every 2 days vs every 2 months) and iOS requirement (13.0 vs 15.1). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Fast ships an update every 2 months, Fasting Timer every 2 days. The most recent releases landed on September 12, 2026 and September 20, 2026 respectively.
| Parameter | Fast | Fasting Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 43 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Borche Davchev | SEOKWON YANG |
In-app purchases
Fast
No in-app purchases
Fasting Timer
No in-app purchases









