# Thread Calculator vs Measurement Uncertainty GUM

The clearest difference is in-app purchases: Thread Calculator at none against Measurement Uncertainty GUM's 2. Measurement Uncertainty GUM's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Measurement Uncertainty GUM sells 2 in-app purchases, starting at $15.00 per month. Thread Calculator asks for nothing beyond the download.

## The numbers

| Metric | Thread Calculator | Measurement Uncertainty GUM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (14 ratings)](https://appshunter.io/ios/app/thread-calculator/id1559560290/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 18 months | — |
| Monetization | Ad-supported | — |
| Size | 25 MB | 24 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GSR Gustav Stursberg GmbH](https://appshunter.io/developer/1559560292) | [QAEE CONPUUTENG](https://appshunter.io/developer/1853582855) |

## What reviewers say

### Thread Calculator

[App page](https://appshunter.io/ios/app/thread-calculator/id1559560290)

This app provides a quick and easy way to calculate thread dimensions for various units, including tap hole sizes and bolt specifications. It helps metalworkers find precise measurements for internal and external threads without consulting tables.

**Highlights:** Thread cutting calculator for multiple units, Cold forming calculator, Thread repair calculator, Tap hole and bolt diameter calculation, Saves time compared to tables

**Features:** macOS Compatibility

**In-app purchases:** none


### Measurement Uncertainty GUM

[App page](https://appshunter.io/ios/app/measurement-uncertainty-gum/id6800986421)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Uncertainty Pro Monthly | $15.00 | per month |
| Uncertainty Pro Yearly | $150.00 | per year |


## Frequently asked questions

### Is Thread Calculator free?

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

### Is Measurement Uncertainty GUM free?

Measurement Uncertainty GUM is free to download, with in-app purchases available.

### Do Thread Calculator or Measurement Uncertainty GUM have ads?

Thread Calculator shows ads; Measurement Uncertainty GUM does not.

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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.*