# Apportata vs Thread Calculator

The clearest difference is ads: Apportata at none against Thread Calculator's shown. Apportata also leads on iOS requirement (11.0 vs 15.0). Thread Calculator's advantage is update cadence (every 18 months vs every 59 months). On price, in-app purchases and device support there is nothing between them.

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

Apportata ships an update every 59 months, Thread Calculator every 18 months. The most recent releases landed on October 4, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Apportata | Thread Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (13 ratings)](https://appshunter.io/ios/app/thread-calculator/id1559560290/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 59 months | **Every 18 months** |
| Monetization | — | Ad-supported |
| Size | 57 MB | 25 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Intuizioni Creative](https://appshunter.io/developer/624523782) | [GSR Gustav Stursberg GmbH](https://appshunter.io/developer/1559560292) |

## What reviewers say

### Apportata

[App page](https://appshunter.io/ios/app/apportata/id1482445214)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Apportata free?

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

### Is Thread Calculator free?

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

### Do Apportata or Thread Calculator have ads?

Thread Calculator shows ads; Apportata does not.

### Which is updated more often, Apportata or Thread Calculator?

Apportata ships an update every 59 months, and Thread Calculator every 18 months. Most recently, Apportata was updated on October 4, 2026 and Thread Calculator on September 27, 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.*