# Bio3G Clock vs TT Clock

Bio3G Clock and TT Clock 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.

Bio3G Clock ships an update monthly, TT Clock every 3 weeks. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Bio3G Clock | TT Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 85 MB | 29 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Biometrics 3g (PTY) LTD](https://appshunter.io/developer/1843550149) | [Shenzhen PROS Electronics Co.,Ltd](https://appshunter.io/developer/1798637623) |

## What reviewers say

### Bio3G Clock

[App page](https://appshunter.io/ios/app/bio3g-clock/id6447108239)

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

**In-app purchases:** none


### TT Clock

[App page](https://appshunter.io/ios/app/tt-clock/id6748670158)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bio3G Clock free?

Bio3G Clock is free to download, with no in-app purchases.

### Is TT Clock free?

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

### Do Bio3G Clock or TT Clock have ads?

Neither Bio3G Clock nor TT Clock shows ads.

### Which is updated more often, Bio3G Clock or TT Clock?

Bio3G Clock ships an update monthly, and TT Clock every 3 weeks. Most recently, Bio3G Clock was updated on October 25, 2026 and TT Clock on October 8, 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.*