# Engine Room Training vs Arvo

The clearest difference is update cadence: Arvo at every 5 days against Engine Room Training's every 7 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Engine Room Training ships an update every 7 months, Arvo every 5 days. The most recent releases landed on September 22, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Engine Room Training | Arvo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 days** |
| Size | 51 MB | 139 MB |
| Requires iOS | **15.1** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Shaping Change Ltd](https://appshunter.io/developer/1352298035) | [Arvo App LTD](https://appshunter.io/developer/6780616380) |

## What reviewers say

### Engine Room Training

[App page](https://appshunter.io/ios/app/engine-room-training/id6503290435)

**Features:** macOS Compatibility

**In-app purchases:** none


### Arvo

[App page](https://appshunter.io/ios/app/arvo/id6780616378)

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

**In-app purchases:** none


## Frequently asked questions

### Is Engine Room Training free?

Engine Room Training is free to download, with no in-app purchases.

### Is Arvo free?

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

### Do Engine Room Training or Arvo have ads?

Neither Engine Room Training nor Arvo shows ads.

### Which is updated more often, Engine Room Training or Arvo?

Engine Room Training ships an update every 7 months, and Arvo every 5 days. Most recently, Engine Room Training was updated on September 22, 2026 and Arvo on September 30, 2026.

---

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