# Engine vs Capazity

The clearest difference is ads: Capazity at none against Engine's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Engine sells 2 in-app purchases, starting at $9.99 per month and Capazity sells 1 in-app purchase, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

Engine ships an update every 10 days, Capazity every 6 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Engine | Capazity |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 6 days** |
| Size | 54 MB | 71 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Les Nants](https://appshunter.io/developer/1807100390) | [Strength Results Sweden AB](https://appshunter.io/developer/1882940865) |

## What reviewers say

### Engine

[App page](https://appshunter.io/ios/app/engine-boost-your-vo2max/id6756730497)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $9.99 | per month |
| Yearly Plan | $39.99 | per year |


### Capazity

[App page](https://appshunter.io/ios/app/capazity/id6760164349)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Capazity Premium | $8.99 | per month |


## Frequently asked questions

### Is Engine free?

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

### Is Capazity free?

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

### Do Engine or Capazity have ads?

Engine shows ads; Capazity does not.

### Which is updated more often, Engine or Capazity?

Engine ships an update every 10 days, and Capazity every 6 days. Most recently, Engine was updated on October 28, 2026 and Capazity on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*