# Work Hour Tracker vs Kairos

The clearest difference is iOS requirement: Work Hour Tracker at 17.6 against Kairos's 26.5. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Work Hour Tracker sells 2 in-app purchases, starting at $3.99 per 7 days and Kairos sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Work Hour Tracker ships an update every 3 weeks, Kairos every 2 weeks. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Work Hour Tracker | Kairos |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/kairos-shift-tracker/id6792157855/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Subscription |
| Size | 11 MB | 4 MB |
| Requires iOS | **17.6** | 26.5 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Karan Kansagara](https://appshunter.io/developer/6772434996) | [BOAZ TIMOTHY WHEALY](https://appshunter.io/developer/6791718585) |

## What reviewers say

### Work Hour Tracker

[App page](https://appshunter.io/ios/app/work-hour-tracker-shiftmate/id6772434994)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShiftMate Pro - Weekly | $3.99 | per 7 days |
| ShiftMate Pro - Yearly | $19.99 | per year |


### Kairos

[App page](https://appshunter.io/ios/app/kairos-shift-tracker/id6792157855)

This app helps shift workers and their families stay synchronized by providing a clear, shareable schedule. It allows users to easily track rotations, see real-time duty status, and receive notifications about upcoming shifts. Designed for professionals with complex schedules, it aims to eliminate guesswork and keep everyone informed.

**Highlights:** Shareable shift calendar, Real-time duty status, Customizable shift rotations, Home screen widgets, Apple Watch support, Multiple calendar tracking

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kairos Pro - Monthly | $4.99 | per month |
| Kairos Pro - Yearly | $49.99 | per year |


## Frequently asked questions

### Is Work Hour Tracker free?

Work Hour Tracker is free to download, with in-app purchases available.

### Is Kairos free?

Kairos is free to download, with in-app purchases available.

### Do Work Hour Tracker or Kairos have ads?

Neither Work Hour Tracker nor Kairos shows ads.

### Which is updated more often, Work Hour Tracker or Kairos?

Work Hour Tracker ships an update every 3 weeks, and Kairos every 2 weeks. Most recently, Work Hour Tracker was updated on October 5, 2026 and Kairos on October 1, 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.*