# CalcTrack vs Unit Converter

The clearest difference is ads: CalcTrack at none against Unit Converter's shown. CalcTrack also leads on update cadence (every 9 days vs every 2 months) and iOS requirement (13.0 vs 17.6). 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.

CalcTrack ships an update every 9 days, Unit Converter every 2 months. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | CalcTrack | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 2 months |
| Size | 1 MB | 11 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Barkin Sungu](https://appshunter.io/developer/1643891581) | [MITSUKO MARGOT KUBOTA ONO](https://appshunter.io/developer/1799524637) |

## What reviewers say

### CalcTrack

[App page](https://appshunter.io/ios/app/calctrack/id6469319850)

**Features:** macOS Compatibility

**In-app purchases:** none


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-us-units/id6760955491)

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

**In-app purchases:** none


## Frequently asked questions

### Is CalcTrack free?

CalcTrack 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 CalcTrack or Unit Converter have ads?

Unit Converter shows ads; CalcTrack does not.

### Which is updated more often, CalcTrack or Unit Converter?

CalcTrack ships an update every 9 days, and Unit Converter every 2 months. Most recently, CalcTrack was updated on October 6, 2026 and Unit Converter on October 7, 2026.

---

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