# Ruler with Caliper, Protractor vs Cetvel Ruler

The clearest difference is in-app purchases: Cetvel Ruler at none against Ruler with Caliper, Protractor's 3. Cetvel Ruler also leads on ads (none vs shown) and update cadence (fortnightly vs every 28 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Ruler with Caliper, Protractor sells 3 in-app purchases, starting at $3.99 per 7 days. Cetvel Ruler asks for nothing beyond the download.

Ruler with Caliper, Protractor ships an update every 28 months, Cetvel Ruler fortnightly. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Ruler with Caliper, Protractor | Cetvel Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 28 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 2 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bhavinkumar Satashiya](https://appshunter.io/developer/1361485921) | [Ozkan Kayhan](https://appshunter.io/developer/1879466347) |

## What reviewers say

### Ruler with Caliper, Protractor

[App page](https://appshunter.io/ios/app/ruler-with-caliper-protractor/id1368462815)

This app transforms your device into a precise digital measuring tool. It offers accurate measurements for various objects and distances using your camera, with multiple units and offline functionality.

**Highlights:** Accurate measurements via camera, Measure small objects to large distances, User-friendly interface, Multiple measurement units (inches, cm), Virtual ruler on screen, Save and share measurements, Offline accessibility

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Yearly | $39.99 | per year |
| Lifetime | $49.99 | one-time |


### Cetvel Ruler

[App page](https://appshunter.io/ios/app/cetvel-ruler/id6759559626)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ruler with Caliper, Protractor free?

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

### Is Cetvel Ruler free?

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

### Do Ruler with Caliper, Protractor or Cetvel Ruler have ads?

Ruler with Caliper, Protractor shows ads; Cetvel Ruler does not.

### Which is updated more often, Ruler with Caliper, Protractor or Cetvel Ruler?

Ruler with Caliper, Protractor ships an update every 28 months, and Cetvel Ruler fortnightly. Most recently, Ruler with Caliper, Protractor was updated on November 2, 2026 and Cetvel Ruler on October 25, 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.*