# iThNk Measure vs Ruler

The clearest difference is in-app purchases: iThNk Measure at none against Ruler's 7. Ruler's advantage is update cadence (every 2 days vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Ruler sells 7 in-app purchases, starting at $2.99 per 7 days. iThNk Measure asks for nothing beyond the download.

iThNk Measure ships an update every 6 months, Ruler every 2 days. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | iThNk Measure | Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ruler-measuring-tape/id6754293314/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 days** |
| Monetization | — | Subscription |
| Size | 8 MB | 27 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Intelligent Thinking (Pty) Ltd](https://appshunter.io/developer/577752077) | [Myroslav Drozd](https://appshunter.io/developer/1847677489) |

## What reviewers say

### iThNk Measure

[App page](https://appshunter.io/ios/app/ithnk-measure/id577752074)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ruler

[App page](https://appshunter.io/ios/app/ruler-measuring-tape/id6754293314)

Transform your phone into a precise measuring tool. Accurately measure objects, surfaces, and distances using your screen or camera. Ideal for home, work, or on-the-go tasks, providing quick and reliable measurements.

**Highlights:** Measure objects on screen, Switch between units (cm, mm, inches), Save and share measurements, Easy-to-use interface, Accurate and fast measurements

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Ruler | $2.99 | per 7 days |
| Smart Ruler | $4.99 | per 7 days |
| Smart Ruler | $6.99 | per 7 days |
| Smart Ruler | $9.99 | per year |
| Smart Ruler | $14.99 | per year |
| Smart Ruler | $19.99 | per year |
| Smart Ruler | $24.99 | per year |


## Frequently asked questions

### Is iThNk Measure free?

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

### Is Ruler free?

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

### Do iThNk Measure or Ruler have ads?

Neither iThNk Measure nor Ruler shows ads.

### Which is updated more often, iThNk Measure or Ruler?

iThNk Measure ships an update every 6 months, and Ruler every 2 days. Most recently, iThNk Measure was updated on November 6, 2026 and Ruler on October 30, 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.*