# Ruler vs TRKRBox

The clearest difference is rating: TRKRBox at 5.0 against Ruler's 3.7. TRKRBox also leads on in-app purchases (none vs 1) and ads (none vs shown). Ruler's advantage is update cadence (every 5 months vs every 14 months) and ratings volume (3 vs 1). On price and device support there is nothing between them.

Both are free to download. Ruler sells 1 one-off in-app purchase. TRKRBox asks for nothing beyond the download.

TRKRBox holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Ruler ships an update every 5 months, TRKRBox every 14 months. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Ruler | TRKRBox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/ruler-scale-ruler/id919130707/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/trkrbox/id1578744257/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 63.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 14 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 4 MB | 19 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [mitsunori oishi](https://appshunter.io/developer/905649994) | [heyday dev](https://appshunter.io/developer/1295995322) |

## What reviewers say

### Ruler

[App page](https://appshunter.io/ios/app/ruler-scale-ruler/id919130707)

This app displays various measurement scales for length, including meters and inches. It allows users to set magnification ratios and reduced scales for different applications. Users can calibrate the ruler and adjust PPI settings for accurate measurements.

**Highlights:** Display various measurement scales, Set magnification ratios, Set reduced scales, Measure in meters and inches, Free mode for custom scales, Calibration for accuracy, PPI setting

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hide Ads | $0.99 | one-time |


### TRKRBox

[App page](https://appshunter.io/ios/app/trkrbox/id1578744257)

Manage your car workshop efficiently by creating invoices, tracking customer and vehicle information, and streamlining approval workflows. This app is specifically designed to meet the needs of automotive repair businesses.

**Highlights:** Invoice creation, Customer management, Vehicle tracking via VIN scan, Approval workflow management, Workshop activity tracking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ruler free?

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

### Is TRKRBox free?

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

### Which has better reviews, Ruler or TRKRBox?

TRKRBox is rated higher. Ruler averages 3.7 out of 5 from 3 ratings, while TRKRBox averages 5.0 from 1 ratings.

### Do Ruler or TRKRBox have ads?

Ruler shows ads; TRKRBox does not.

### Which is updated more often, Ruler or TRKRBox?

Ruler ships an update every 5 months, and TRKRBox every 14 months. Most recently, Ruler was updated on October 13, 2026 and TRKRBox on October 10, 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.*