# WorkMiles vs Acoustic Tachometer

The clearest difference is price: Acoustic Tachometer at Free against WorkMiles's $0.49. Acoustic Tachometer also leads on update cadence (monthly vs every 31 months). WorkMiles's advantage is device support (3 vs 1) and iOS requirement (13.6 vs 26.0). On ads and in-app purchases there is nothing between them.

Acoustic Tachometer is free to download; WorkMiles costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

WorkMiles ships an update every 31 months, Acoustic Tachometer monthly. The most recent releases landed on September 27, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | WorkMiles | Acoustic Tachometer |
| --- | --- | --- |
| Price | $0.49 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Monthly** |
| Size | 1 MB | 9 MB |
| Requires iOS | **13.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Compiled](https://appshunter.io/developer/520829733) | [Jan Sokol](https://appshunter.io/developer/1896490456) |

## What reviewers say

### WorkMiles

[App page](https://appshunter.io/ios/app/workmiles/id1529420331)

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

**In-app purchases:** none


### Acoustic Tachometer

[App page](https://appshunter.io/ios/app/acoustic-tachometer/id6789524641)

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

**In-app purchases:** none


## Frequently asked questions

### Is WorkMiles free?

WorkMiles costs $0.49, with no in-app purchases.

### Is Acoustic Tachometer free?

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

### Do WorkMiles or Acoustic Tachometer have ads?

Neither WorkMiles nor Acoustic Tachometer shows ads.

### Which is updated more often, WorkMiles or Acoustic Tachometer?

WorkMiles ships an update every 31 months, and Acoustic Tachometer monthly. Most recently, WorkMiles was updated on September 27, 2026 and Acoustic Tachometer on October 17, 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.*