# OITC Columbus vs BioTweak

The clearest difference is iOS requirement: OITC Columbus at 13.0 against BioTweak's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

OITC Columbus ships an update every 7 months, BioTweak every 12 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | OITC Columbus | BioTweak |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 12 months |
| Size | 38 MB | 2 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Olympic Indoor Tennis, Inc.](https://appshunter.io/developer/1717445743) | [BioTweak](https://appshunter.io/developer/1720420103) |

## What reviewers say

### OITC Columbus

[App page](https://appshunter.io/ios/app/oitc-columbus/id1314222917)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### BioTweak

[App page](https://appshunter.io/ios/app/biotweak-wellbeing-but-fun/id6474038224)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OITC Columbus free?

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

### Is BioTweak free?

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

### Do OITC Columbus or BioTweak have ads?

Neither OITC Columbus nor BioTweak shows ads.

### Which is updated more often, OITC Columbus or BioTweak?

OITC Columbus ships an update every 7 months, and BioTweak every 12 months. Most recently, OITC Columbus was updated on October 26, 2026 and BioTweak on October 27, 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.*