# Chen Tai Chi Forms vs Cube Air

The clearest difference is in-app purchases: Cube Air at none against Chen Tai Chi Forms's 3. Cube Air also leads on update cadence (every 7 months vs every 14 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Chen Tai Chi Forms sells 3 one-off in-app purchases. Cube Air asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Chen Tai Chi Forms against 5.0 for Cube Air. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Chen Tai Chi Forms ships an update every 14 months, Cube Air every 7 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Chen Tai Chi Forms | Cube Air |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/chen-tai-chi-forms/id1527205235/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/cube-air/id6504287176/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 7 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 37 MB | 77 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YMAA Publication Center, Inc.](https://appshunter.io/developer/891633332) | [Cube Air, LLC](https://appshunter.io/developer/1751711753) |

## What reviewers say

### Chen Tai Chi Forms

[App page](https://appshunter.io/ios/app/chen-tai-chi-forms/id1527205235)

Learn traditional Chen-style Tai Chi forms with step-by-step guidance from Master Chenhan. Progress at your own pace with individual form purchases. Offers low-impact exercise for improved circulation, vitality, and mental alertness.

**Highlights:** Step-by-step form instruction, Learn Lao Jia Yi Lu (First Form), Learn Cannon Fist (Second Form), Learn combined 56-movement form, Low-impact whole-body exercise, Improve circulation and vitality, Develop mental alertness

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Section 1 | $9.99 | one-time |
| Unlock Section 2 | $9.99 | one-time |
| Unlock Section 3 | $9.99 | one-time |


### Cube Air

[App page](https://appshunter.io/ios/app/cube-air/id6504287176)

Monitor your indoor air quality in real-time with this smart solution. It works with a central air purification system to provide continuous feedback on air conditions, promoting a healthier living space.

**Highlights:** Real-time air quality monitoring, Seamless integration with air purification system, Continuous feedback on indoor air conditions, Promotes healthier living environment, Peace of mind

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chen Tai Chi Forms free?

Chen Tai Chi Forms is free to download, with in-app purchases available.

### Is Cube Air free?

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

### Which has better reviews, Chen Tai Chi Forms or Cube Air?

Chen Tai Chi Forms and Cube Air are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Chen Tai Chi Forms or Cube Air have ads?

Neither Chen Tai Chi Forms nor Cube Air shows ads.

### Which is updated more often, Chen Tai Chi Forms or Cube Air?

Chen Tai Chi Forms ships an update every 14 months, and Cube Air every 7 months. Most recently, Chen Tai Chi Forms was updated on November 4, 2026 and Cube Air on October 30, 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.*