Comparison

DoFast vs Simple Fasting Timer

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

Head to head

DoFast

Fasting Timer & Tracker

No account. Offline tracker

Free

💪 Health & Fitness

No ratingsView app →

About

DoFast

Features

Read full description

Smart intermittent fasting tracker. Choose 16:8, 18:6, 20:4, OMAD or custom protocols. - Multiple fasting protocols - Metabolic phase tracking - Timer with eating window - Calendar heatmap - Statistics and streaks - Dark mode - English and Hebrew Not medical advice. Consult your doctor. Use at your own risk.

About

Simple Fasting Timer

Read full description

Just a fasting timer. No account, no coaching, no subscription traps. One-time purchase unlocks everything, forever. Simple Fasting Timer helps you start and track intermittent fasting windows. Free includes 16:8 and 18:6. Pro adds 20:4, OMAD, and custom fasting windows. Open the app, choose a window, start fasting, and come back anytime. What you get: - Clean fasting timer with progress ring - Live Activity and Dynamic Island support - Home Screen widget with remaining time - Local goal notification - Local fasting history and streak - Weekly fasting schedule - No account required - Works offline Pro is a one-time purchase. It unlocks advanced and custom fasting protocols, complete history and CSV export, weekly schedules, milestone reminders, all themes, and iCloud backup and restore. No subscriptions. Simple Fasting Timer is for personal wellness tracking only and is not medical advice.

Screenshots

DoFast3 screens

Simple Fasting Timer3 screens

Verdict

The call

The clearest difference is in-app purchases: DoFast at none against Simple Fasting Timer's 1. DoFast also leads on iOS requirement (15.0 vs 17.6). Simple Fasting Timer's advantage is update cadence (daily vs every 2 months). On price, ads 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. Simple Fasting Timer sells 1 one-off in-app purchase. DoFast asks for nothing beyond the download.

UpkeepUpdate frequency

DoFast ships an update every 2 months, Simple Fasting Timer daily. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 3 level

DoFast versus Simple Fasting Timer: the parameters behind the verdict, then further details
Parameter	DoFast	Simple Fasting Timer
Price	Free	Free
Update frequency	Every 2 months	Daily — better
Ads	No	No
In-app purchases	No — better	Yes
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	15.0 — better	17.6
Further details — not scored
Size	8 MB	2 MB
Age rating	4+	4+
Developer	Igor Lenderman	Serghei Eschin

In-app purchases

None

DoFast

No in-app purchases

1 purchases

Simple Fasting Timer

One-time1

Pro Lifetime$6.99

Questions

Is DoFast free?

DoFast is free to download, with no in-app purchases.

Is Simple Fasting Timer free?

Simple Fasting Timer is free to download, with in-app purchases available.

Do DoFast or Simple Fasting Timer have ads?

Neither DoFast nor Simple Fasting Timer shows ads.

Which is updated more often, DoFast or Simple Fasting Timer?

DoFast ships an update every 2 months, and Simple Fasting Timer daily. Most recently, DoFast was updated on October 1, 2026 and Simple Fasting Timer on September 30, 2026.