# ChromaTools vs AR Ruler

The clearest difference is in-app purchases: ChromaTools at none against AR Ruler's 2. ChromaTools also leads on update cadence (daily vs every 2 months) and iOS requirement (13.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. AR Ruler sells 2 in-app purchases, starting at $3.99 per 7 days. ChromaTools asks for nothing beyond the download.

ChromaTools ships an update daily, AR Ruler every 2 months. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ChromaTools | AR Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ar-ruler-see-the-scale/id6761820537/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 months |
| Monetization | — | Subscription |
| Size | 62 MB | 29 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Oliver Ditty](https://appshunter.io/developer/1869542323) | [洋洋 常](https://appshunter.io/developer/1847833029) |

## What reviewers say

### ChromaTools

[App page](https://appshunter.io/ios/app/chromatools/id6757858032)

**Features:** macOS Compatibility

**In-app purchases:** none


### AR Ruler

[App page](https://appshunter.io/ios/app/ar-ruler-see-the-scale/id6761820537)

Measure objects and spaces using your phone's camera. Create 3D floor plans, check if surfaces are level, and save your measurements with dimensions. Supports multiple units for domestic and international use.

**Highlights:** Measure length, height, and width, Generate 3D floor plans, Digital bubble level, Save and share measurements, Supports cm, inches, and meters, Automatic history storage

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Member | $3.99 | per 7 days |
| Annual subscription | $39.99 | per year |


## Frequently asked questions

### Is ChromaTools free?

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

### Is AR Ruler free?

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

### Do ChromaTools or AR Ruler have ads?

Neither ChromaTools nor AR Ruler shows ads.

### Which is updated more often, ChromaTools or AR Ruler?

ChromaTools ships an update daily, and AR Ruler every 2 months. Most recently, ChromaTools was updated on October 31, 2026 and AR Ruler on November 5, 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.*