# ProportionsOf ? vs Dev Tool box

The clearest difference is ads: ProportionsOf ? at none against Dev Tool box's shown. ProportionsOf ? also leads on iOS requirement (15.0 vs 18.0). Dev Tool box's advantage is update cadence (every 3 weeks vs every 18 months). On price, 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.

ProportionsOf ? ships an update every 18 months, Dev Tool box every 3 weeks. The most recent releases landed on October 14, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | ProportionsOf ? | Dev Tool box |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 18 months | **Every 3 weeks** |
| Size | 11 MB | 4 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Claudio Guirunas](https://appshunter.io/developer/1149103410) | [Seonggon Sim](https://appshunter.io/developer/1565259950) |

## What reviewers say

### ProportionsOf ?

[App page](https://appshunter.io/ios/app/proportionsof/id1151235927)

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

**In-app purchases:** none


### Dev Tool box

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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ProportionsOf ? free?

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

### Is Dev Tool box free?

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

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

Dev Tool box shows ads; ProportionsOf ? does not.

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

ProportionsOf ? ships an update every 18 months, and Dev Tool box every 3 weeks. Most recently, ProportionsOf ? was updated on October 14, 2026 and Dev Tool box on October 4, 2026.

---

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