# Keros vs Thetis Tools

Keros and Thetis Tools are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Keros ships an update every 4 months, Thetis Tools every 7 months. The most recent releases landed on June 9, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Keros | Thetis Tools |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 7.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | Free | — |
| Size | 58 MB | 50 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cronos srl](https://appshunter.io/developer/1180670071) | [Thetis srl](https://appshunter.io/developer/397584184) |

## What reviewers say

### Keros

[App page](https://appshunter.io/ios/app/keros/id1180670072)

This app provides mobile access to a system for time tracking and leave requests. It allows users to manage their attendance and submit permission requests directly from their mobile device.

**Highlights:** Mobile time tracking, Leave request submission, Attendance management, Permission requests

**Features:** macOS Compatibility

**In-app purchases:** none


### Thetis Tools

[App page](https://appshunter.io/ios/app/thetis-tools/id1460268980)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Keros free?

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

### Is Thetis Tools free?

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

### Do Keros or Thetis Tools have ads?

Neither Keros nor Thetis Tools shows ads.

### Which is updated more often, Keros or Thetis Tools?

Keros ships an update every 4 months, and Thetis Tools every 7 months. Most recently, Keros was updated on June 9, 2026 and Thetis Tools on September 10, 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.*