# RE vs Tai Chi Math

The clearest difference is in-app purchases: Tai Chi Math at none against RE's 5. Tai Chi Math also leads on ads (none vs shown) and update cadence (every 5 days vs every 5 weeks). RE's advantage is iOS requirement (12.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. RE sells 5 in-app purchases, starting at $23.99 per month. Tai Chi Math asks for nothing beyond the download.

RE ships an update every 5 weeks, Tai Chi Math every 5 days. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | RE | Tai Chi Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Size | 44 MB | 158 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Mancuso Osteopathy](https://appshunter.io/developer/1613732044) | [Mind Body Aware Games LLC](https://appshunter.io/developer/1018615903) |

## What reviewers say

### RE

[App page](https://appshunter.io/ios/app/re-align/id1627391781)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Online Program MO | $23.99 | per month |
| Onetime Plan | $59.99 | one-time |
| Mancuso Osteo Program | $69.99 | one-time |
| Upper back Reset | $74.99 | one-time |
| Lower Back Reset | $74.99 | one-time |


### Tai Chi Math

[App page](https://appshunter.io/ios/app/tai-chi-math/id6757789036)

**In-app purchases:** none


## Frequently asked questions

### Is RE free?

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

### Is Tai Chi Math free?

Tai Chi Math is free to download, with no in-app purchases.

### Do RE or Tai Chi Math have ads?

RE shows ads; Tai Chi Math does not.

### Which is updated more often, RE or Tai Chi Math?

RE ships an update every 5 weeks, and Tai Chi Math every 5 days. Most recently, RE was updated on October 7, 2026 and Tai Chi Math on October 16, 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.*