# Super Ruler vs Thread Gauge

The clearest difference is ads: Thread Gauge at none against Super Ruler's shown. Thread Gauge also leads on update cadence (every 6 days vs every 109 months). Super Ruler's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 17.6). On price 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.

Super Ruler ships an update every 109 months, Thread Gauge every 6 days. The most recent releases landed on September 15, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | Super Ruler | Thread Gauge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/thread-gauge/id6781018381/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 109 months | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 8 MB | 4 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hany Elmehy](https://appshunter.io/developer/959484887) | [Imad Jawad](https://appshunter.io/developer/6781018383) |

## What reviewers say

### Super Ruler

[App page](https://appshunter.io/ios/app/super-ruler/id1182697242)

**Features:** macOS Compatibility

**In-app purchases:** none


### Thread Gauge

[App page](https://appshunter.io/ios/app/thread-gauge/id6781018381)

This app transforms your iPhone into a precise thread measurement tool. Simply photograph a screw next to a reference card to accurately determine its pitch and diameter, identifying the closest standard in both metric and imperial units.

**Highlights:** Measures metric and imperial threads, Identifies closest standard match, Uses reference card for scale, On-screen guidance for photography, Offline processing, no data tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is Super Ruler free?

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

### Is Thread Gauge free?

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

### Do Super Ruler or Thread Gauge have ads?

Super Ruler shows ads; Thread Gauge does not.

### Which is updated more often, Super Ruler or Thread Gauge?

Super Ruler ships an update every 109 months, and Thread Gauge every 6 days. Most recently, Super Ruler was updated on September 15, 2026 and Thread Gauge on August 16, 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.*