# ConvertOne vs Unit converter

The clearest difference is update cadence: ConvertOne at every 2 days against Unit converter's every 3 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.

ConvertOne ships an update every 2 days, Unit converter every 3 months. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ConvertOne | Unit converter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 months |
| Size | 32 MB | 41 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ETHAN FRANCIS DARSTEIN](https://appshunter.io/developer/1866338228) | [Claudio Fusillo](https://appshunter.io/developer/1520006843) |

## What reviewers say

### ConvertOne

[App page](https://appshunter.io/ios/app/convertone-units-and-measures/id6757357394)

**Features:** macOS Compatibility

**In-app purchases:** none


### Unit converter

[App page](https://appshunter.io/ios/app/unit-converter-unitflow/id6760021792)

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

**In-app purchases:** none


## Frequently asked questions

### Is ConvertOne free?

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

### Is Unit converter free?

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

### Do ConvertOne or Unit converter have ads?

Neither ConvertOne nor Unit converter shows ads.

### Which is updated more often, ConvertOne or Unit converter?

ConvertOne ships an update every 2 days, and Unit converter every 3 months. Most recently, ConvertOne was updated on October 5, 2026 and Unit converter on October 14, 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.*