# All Unit Conversion vs Unitify

The clearest difference is update cadence: Unitify at every 2 weeks against All Unit Conversion's every 2 months. Unitify also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

All Unit Conversion ships an update every 2 months, Unitify every 2 weeks. The most recent releases landed on September 13, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | All Unit Conversion | Unitify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (17 ratings)](https://appshunter.io/ios/app/all-unit-conversion/id1418597453/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 22 MB | 5 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tiago Do Couto](https://appshunter.io/developer/1291604717) | [Marwa Abou Niaaj](https://appshunter.io/developer/1407184850) |

## What reviewers say

### All Unit Conversion

[App page](https://appshunter.io/ios/app/all-unit-conversion/id1418597453)

Easily convert between various units of measurement with this free utility app. It supports conversions for length, area, volume, mass, time, digital storage, energy, and currency.

**Highlights:** Length conversion, Area conversion, Volume conversion, Mass conversion, Time conversion, Currency conversion

**Features:** macOS Compatibility

**In-app purchases:** none


### Unitify

[App page](https://appshunter.io/ios/app/unitify-unit-conversion/id1641864451)

**In-app purchases:** none


## Frequently asked questions

### Is All Unit Conversion free?

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

### Is Unitify free?

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

### Do All Unit Conversion or Unitify have ads?

Neither All Unit Conversion nor Unitify shows ads.

### Which is updated more often, All Unit Conversion or Unitify?

All Unit Conversion ships an update every 2 months, and Unitify every 2 weeks. Most recently, All Unit Conversion was updated on September 13, 2026 and Unitify on September 11, 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.*