Comparison

Fast vs Fasting Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Fast

Features
Read full description

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.

About

Fasting Timer

Features
Read full description

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

Fast4 screens
Fasting Timer3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 3 level
Fast versus Fasting Timer: the parameters behind the verdict, then further details
ParameterFastFasting Timer
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.113.0 — better
Further details — not scored
Size43 MB23 MB
Age rating4+4+
DeveloperBorche DavchevSEOKWON YANG

In-app purchases

None

Fast

No in-app purchases

None

Fasting Timer

No in-app purchases

Questions

Is Fast free?
Fast is free to download, with no in-app purchases.
Is Fasting Timer free?
Fasting Timer is free to download, with no in-app purchases.
Do Fast or Fasting Timer have ads?
Fasting Timer shows ads; Fast does not.
Which is updated more often, Fast or Fasting Timer?
Fast ships an update every 2 months, and Fasting Timer every 2 days. Most recently, Fast was updated on September 12, 2026 and Fasting Timer on September 20, 2026.

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