# Thread Chart vs Pipetionary

The clearest difference is device support: Pipetionary at 3 against Thread Chart's —. Thread Chart's advantage is iOS requirement (8.0 vs 15.1). 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.

## The numbers

| Metric | Thread Chart | Pipetionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/thread-chart/id1335115083/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 3 weeks |
| Monetization | Free | — |
| Size | 16 MB | 75 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Igor Pivnyk](https://appshunter.io/developer/1335115082) | [Mario Cerda](https://appshunter.io/developer/6772352482) |

## What reviewers say

### Thread Chart

[App page](https://appshunter.io/ios/app/thread-chart/id1335115083)

This app provides machinists with quick access to screw thread tolerances for various ISO and UN threads, including exotic sizes. It supports internal and external threads and calculates tap holes, eliminating the need for tolerance tables.

**Highlights:** ISO and UN thread tolerance processing, Support for exotic thread sizes, Internal and external thread calculations, Tap hole calculation, Eliminates need for tolerance tables

**In-app purchases:** none


### Pipetionary

[App page](https://appshunter.io/ios/app/pipetionary/id6787582078)

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

**In-app purchases:** none


## Frequently asked questions

### Is Thread Chart free?

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

### Is Pipetionary free?

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

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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.*