# One Tap Timer vs Kairos

The clearest difference is in-app purchases: Kairos at none against One Tap Timer's 1. Kairos also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. One Tap Timer sells 1 one-off in-app purchase. Kairos asks for nothing beyond the download.

One Tap Timer ships an update every 6 days, Kairos every 4 days. Both last shipped on October 2, 2026.

## The numbers

| Metric | One Tap Timer | Kairos |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (33 ratings)](https://appshunter.io/ios/app/one-tap-timer-easy-countdown/id6755622690/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 days | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 36 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [StedyWorks](https://appshunter.io/developer/1838589979) | [Benno Kohrs](https://appshunter.io/developer/1858491109) |

## What reviewers say

### One Tap Timer

[App page](https://appshunter.io/ios/app/one-tap-timer-easy-countdown/id6755622690)

This app offers a straightforward countdown timer designed for everyday tasks. It features simple controls, quick setup with presets, and customizable alerts, all within a distraction-free interface. Ideal for studying, cooking, workouts, and more.

**Highlights:** Tap to start, pause, resume, Minimalist, distraction-free interface, Instant presets and custom duration, Light and Dark visual themes, Sound or vibration alerts, Focus and study timer

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### Kairos

[App page](https://appshunter.io/ios/app/kairos-random-timer/id6759820843)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is One Tap Timer free?

One Tap Timer is free to download, with in-app purchases available.

### Is Kairos free?

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

### Do One Tap Timer or Kairos have ads?

One Tap Timer shows ads; Kairos does not.

### Which is updated more often, One Tap Timer or Kairos?

One Tap Timer ships an update every 6 days, and Kairos every 4 days. Most recently, One Tap Timer was updated on October 2, 2026 and Kairos on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*