Kairos vs MIMI Private Timer
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Kairos
Read full descriptionHide full description
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.
MIMI Private Timer
Read full descriptionHide full description
MIMI Private Timer lets you play alerts through headphones for quiet, personal use. Use it for short breaks, commuting, focused work, study sessions, reminders, and private timing without disturbing people around you. Key features: Private audio alerts through headphones Simple timer setup Quiet, personal reminders Useful for work, travel, study, and daily routines Designed for situations where speaker-based playback is not appropriate This app is suitable for: commuters office workers students anyone who needs discreet personal alerts Note: A connected wired or Bluetooth headphone device may be required for the intended experience.
Screenshots
Verdict
The clearest difference is in-app purchases: Kairos at none against MIMI Private Timer's 2. Kairos also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads 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
Both are free to download. MIMI Private Timer sells 2 one-off in-app purchases. Kairos asks for nothing beyond the download.
Kairos ships an update every 4 days, MIMI Private Timer every 6 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | Kairos | MIMI Private Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days โ better | Every 6 days |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPod โ better | iPhone |
| Requires iOS | 15.1 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 36 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Benno Kohrs | Ryoma Inoue |
In-app purchases
Kairos
No in-app purchases
MIMI Private Timer
- Remove Ads$0.99
- Buy me a coffee$2.99
Questions
Is Kairos free?
Is MIMI Private Timer free?
Do Kairos or MIMI Private Timer have ads?
Which is updated more often, Kairos or MIMI Private Timer?
Other comparisons















