# Thetis Tools vs Time Master

The clearest difference is update cadence: Time Master at weekly against Thetis Tools's every 7 months. Time Master also leads on iOS requirement (9.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Thetis Tools ships an update every 7 months, Time Master weekly. The most recent releases landed on September 10, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | Thetis Tools | Time Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/time-master/id1564836046/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | — | Free |
| Size | 50 MB | 76 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thetis srl](https://appshunter.io/developer/397584184) | [Taizhou Mutong Network Technology Co., Ltd.](https://appshunter.io/developer/1556965366) |

## What reviewers say

### Thetis Tools

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Time Master

[App page](https://appshunter.io/ios/app/time-master/id1564836046)

Easily track important dates and events with a countdown or count-up feature. Customize your experience with lunar calendar support, multiple themes, and rich background wallpapers. Stay organized and never miss a significant day.

**Highlights:** Countdown/count-up for important days, Lunar calendar support, Multi-theme switching, Customizable background wallpapers, Fluent animation effects, Day calculation (days until/days passed)

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

**In-app purchases:** none


## Frequently asked questions

### Is Thetis Tools free?

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

### Is Time Master free?

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

### Do Thetis Tools or Time Master have ads?

Neither Thetis Tools nor Time Master shows ads.

### Which is updated more often, Thetis Tools or Time Master?

Thetis Tools ships an update every 7 months, and Time Master weekly. Most recently, Thetis Tools was updated on September 10, 2026 and Time Master on August 15, 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.*