# Dev Tool box vs Umbra

The clearest difference is in-app purchases: Dev Tool box at none against Umbra's 2. Umbra's advantage is ads (none vs shown) and iOS requirement (15.1 vs 18.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Umbra sells 2 in-app purchases, starting at $2.99 per month. Dev Tool box asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 4, 2026.

## The numbers

| Metric | Dev Tool box | Umbra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 4 MB | 31 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seonggon Sim](https://appshunter.io/developer/1565259950) | [Cor Meum](https://appshunter.io/developer/1837976899) |

## What reviewers say

### Dev Tool box

[App page](https://appshunter.io/ios/app/dev-tool-box-developer-tools/id6749840624)

**Features:** Vision Pro support

**In-app purchases:** none


### Umbra

[App page](https://appshunter.io/ios/app/umbra/id6755661783)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Umbra Premium Monthly | $2.99 | per month |
| Umbra Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is Dev Tool box free?

Dev Tool box is free to download, with no in-app purchases.

### Is Umbra free?

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

### Do Dev Tool box or Umbra have ads?

Dev Tool box shows ads; Umbra does not.

### Which is updated more often, Dev Tool box or Umbra?

Dev Tool box ships an update every 3 weeks, and Umbra every 3 weeks. Most recently, Dev Tool box was updated on October 4, 2026 and Umbra on October 4, 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.*