Comparison

Simple Loop Timer vs Kairos

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

Head to head
About

Simple Loop Timer

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An infinitely repeating timer, perfect for workouts or turn-based games. Save multiple presets, with custom loop durations and colors.

About

Kairos

Features
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Most timers tell you exactly when they end. Kairos does not. Set a minimum and maximum duration, start the timer, and Kairos chooses a random moment in between. You know the range. You do not know the exact finish. That simple twist makes Kairos useful anywhere timing should stay unpredictable. USE KAIROS FOR - Meditation: sit without watching the clock - Exercise: hold effort without bracing for the last seconds - Study sessions: add flexible focus or break intervals - Interval training: Auto Repeat randomises every set so you never anticipate the next round - Party games: perfect for Hot Potato, Musical Chairs, and other pass-it-fast games FEATURES - Random timer between your chosen minimum and maximum - Clean countdown interface designed for iPhone - Hide Time Display for a more focused, less predictable experience - Auto Repeat, Overtime, and Auto Stop modes after the timer ends - Label your timers for quick recognition in Recents - Choice of built-in alarm sounds - Haptic feedback when time is up - Recents for quickly restarting favorite timer setups - Light, Dark, and System theme - No ads or sign-up required Kairos is built for the moments when exact timing gets in the way and a little uncertainty makes the experience better.

Screenshots

Simple Loop Timer3 screens
Kairos4 screens

Verdict

The call

The clearest difference is update cadence: Kairos at every 4 days against Simple Loop Timer's every 5 months. Kairos also leads on iOS requirement (15.1 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

Simple Loop Timer ships an update every 5 months, Kairos every 4 days. The most recent releases landed on October 8, 2026 and October 19, 2026 respectively.

Scorecard2 real differences ยท 4 level
Simple Loop Timer versus Kairos: the parameters behind the verdict, then further details
ParameterSimple Loop TimerKairos
PriceFreeFree
Update frequencyEvery 5 monthsEvery 4 days โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPod โ€” better
Requires iOS18.615.1 โ€” better
Further details โ€” not scored
Size5 MB36 MB
Age rating4+4+
DeveloperPortly Pig Studios LLCBenno Kohrs

In-app purchases

None

Simple Loop Timer

No in-app purchases

None

Kairos

No in-app purchases

Questions

Is Simple Loop Timer free?
Simple Loop Timer is free to download, with no in-app purchases.
Is Kairos free?
Kairos is free to download, with no in-app purchases.
Do Simple Loop Timer or Kairos have ads?
Neither Simple Loop Timer nor Kairos shows ads.
Which is updated more often, Simple Loop Timer or Kairos?
Simple Loop Timer ships an update every 5 months, and Kairos every 4 days. Most recently, Simple Loop Timer was updated on October 8, 2026 and Kairos on October 19, 2026.

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