KPOPTongueDrum vs Kairos
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
KPOPTongueDrum
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KPOPTongueDrum is an app developed for Tongue Drum enthusiasts. It features a rich music library categorized by different styles. Each song can be practiced using the fun follow-play mode, and can also be learned with numbered musical notation, making it both easy and enjoyable to use.
Kairos
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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
Verdict
The clearest difference is update cadence: Kairos at every 4 days against KPOPTongueDrum's every 5 months. KPOPTongueDrum's advantage is iOS requirement (12.0 vs 15.1). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
KPOPTongueDrum ships an update every 5 months, Kairos every 4 days. The most recent releases landed on September 12, 2026 and September 15, 2026 respectively.
| Parameter | KPOPTongueDrum | Kairos |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 4 days โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 12.0 โ better | 15.1 |
| Further details โ not scored | ||
| Size | 216 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Samick Seiler Culture Communication (Shanghai) Co., Ltd. | Benno Kohrs |
In-app purchases
KPOPTongueDrum
No in-app purchases
Kairos
No in-app purchases
Questions
Is KPOPTongueDrum free?
Is Kairos free?
Do KPOPTongueDrum or Kairos have ads?
Which is updated more often, KPOPTongueDrum or Kairos?
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