# 3D Shape Identifier vs Infinite Ruler

The clearest difference is update cadence: 3D Shape Identifier at daily against Infinite Ruler's every 7 months. 3D Shape Identifier also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.2). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

3D Shape Identifier ships an update daily, Infinite Ruler every 7 months. The most recent releases landed on October 11, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 3D Shape Identifier | Infinite Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/infinite-ruler/id6746876762/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 7 months |
| Monetization | — | Free |
| Size | 2 MB | 6 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fedor Derzhavin](https://appshunter.io/developer/1643699304) | [Eric Savoie](https://appshunter.io/developer/1695096773) |

## What reviewers say

### 3D Shape Identifier

[App page](https://appshunter.io/ios/app/3d-shape-identifier/id1643699302)

**Features:** macOS Compatibility

**In-app purchases:** none


### Infinite Ruler

[App page](https://appshunter.io/ios/app/infinite-ruler/id6746876762)

Measure objects with precision using a digital ruler that extends beyond your screen. Choose fractional inch or centimeter units and calibrate for accuracy. Ideal for quick measurements when a physical tool isn't available.

**Highlights:** Fractional inch or centimeter measurement, Adjustable precision (1/8, 1/16, 1/32 inch), Extendable ruler beyond screen length, Customizable zero point, Live distance markers, On-device calibration

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

**In-app purchases:** none


## Frequently asked questions

### Is 3D Shape Identifier free?

3D Shape Identifier is free to download, with no in-app purchases.

### Is Infinite Ruler free?

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

### Do 3D Shape Identifier or Infinite Ruler have ads?

Neither 3D Shape Identifier nor Infinite Ruler shows ads.

### Which is updated more often, 3D Shape Identifier or Infinite Ruler?

3D Shape Identifier ships an update daily, and Infinite Ruler every 7 months. Most recently, 3D Shape Identifier was updated on October 11, 2026 and Infinite Ruler on September 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*