# Unit Converter vs Maintenance Tracker

The clearest difference is ads: Unit Converter at none against Maintenance Tracker's shown. Unit Converter also leads on update cadence (daily vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Unit Converter sells 2 one-off in-app purchases and Maintenance Tracker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Unit Converter ships an update daily, Maintenance Tracker every 3 weeks. The most recent releases landed on August 27, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Unit Converter | Maintenance Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/unit-converter-fromto/id6738796120/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 55 MB | 54 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Farid Fakhnavar](https://appshunter.io/developer/1692223826) | [Ryan Knisley](https://appshunter.io/developer/1867434341) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-fromto/id6738796120)

This versatile tool simplifies daily tasks by offering quick and reliable conversions for over 20 unit types. Its clean, intuitive interface makes converting measurements easy for students, professionals, and travelers alike. Enjoy offline functionality and a lightweight design that won't drain your device's resources.

**Highlights:** Over 20 unit categories, Length, weight, volume, temperature, speed, time, energy, pressure conversions, Real-time currency exchange rates, User-friendly interface, Lightweight and fast performance, Offline functionality

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro Sale | $6.99 | one-time |
| Lifetime Pro | $9.99 | one-time |


### Maintenance Tracker

[App page](https://appshunter.io/ios/app/maintenance-tracker/id6757522265)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Unit Converter free?

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

### Is Maintenance Tracker free?

Maintenance Tracker is free to download, with in-app purchases available.

### Do Unit Converter or Maintenance Tracker have ads?

Maintenance Tracker shows ads; Unit Converter does not.

### Which is updated more often, Unit Converter or Maintenance Tracker?

Unit Converter ships an update daily, and Maintenance Tracker every 3 weeks. Most recently, Unit Converter was updated on August 27, 2026 and Maintenance Tracker on September 18, 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.*