# Unit Ⅽonverter vs GOPP

The clearest difference is in-app purchases: GOPP at none against Unit Ⅽonverter's 2. GOPP also leads on ads (none vs shown). Unit Ⅽonverter's advantage is update cadence (every 3 weeks vs every 14 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Unit Ⅽonverter sells 2 in-app purchases, starting at $1.99 per month. GOPP asks for nothing beyond the download.

Unit Ⅽonverter ships an update every 3 weeks, GOPP every 14 months. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Unit Ⅽonverter | GOPP |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 14 months |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 2 MB |
| Requires iOS | **18.0** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Polymath Company Limited](https://appshunter.io/developer/1072350394) | [Martin Alejandro Gopp Pereiro](https://appshunter.io/developer/1787800921) |

## What reviewers say

### Unit Ⅽonverter

[App page](https://appshunter.io/ios/app/unit-onverter/id1499479393)

Easily convert between over 1600 units of measurement across 75 categories, including custom units and complex calculations. Supports offline mode and offers a convenient history of your conversions.

**Highlights:** Convert over 1600 units in 75 categories, Supports custom units and combinations, Calculator for expression input, View conversion histories, Add favorite units, Offline mode, Copy and share results

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UnitConverterPremiumMonthly | $1.99 | per month |
| UnitConverterPremiumLifeTime | $33.99 | one-time |


### GOPP

[App page](https://appshunter.io/ios/app/gopp/id6739982595)

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

**In-app purchases:** none


## Frequently asked questions

### Is Unit Ⅽonverter free?

Unit Ⅽonverter is free to download, with in-app purchases available.

### Is GOPP free?

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

### Do Unit Ⅽonverter or GOPP have ads?

Unit Ⅽonverter shows ads; GOPP does not.

### Which is updated more often, Unit Ⅽonverter or GOPP?

Unit Ⅽonverter ships an update every 3 weeks, and GOPP every 14 months. Most recently, Unit Ⅽonverter was updated on October 12, 2026 and GOPP on October 8, 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.*