# Aptus vs Unit Ⅽonverter

The clearest difference is in-app purchases: Aptus at none against Unit Ⅽonverter's 2. Aptus also leads on iOS requirement (14.0 vs 18.0). Unit Ⅽonverter's advantage is update cadence (every 3 weeks vs every 19 months). On price and device support there is nothing between them.

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

Aptus ships an update every 19 months, Unit Ⅽonverter every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Aptus | Unit Ⅽonverter |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | Every 19 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 45 MB | 8 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Metricell Limited](https://appshunter.io/developer/432315833) | [Polymath Company Limited](https://appshunter.io/developer/1072350394) |

## What reviewers say

### Aptus

[App page](https://appshunter.io/ios/app/aptus/id1364511396)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Aptus free?

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

### Is Unit Ⅽonverter free?

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

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

Aptus ships an update every 19 months, and Unit Ⅽonverter every 3 weeks. Most recently, Aptus was updated on November 2, 2026 and Unit Ⅽonverter on November 3, 2026.

---

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