# Thread Calculators vs Gear Formula

The clearest difference is price: Gear Formula at Free against Thread Calculators's $1.99. Thread Calculators's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

Gear Formula is free to download; Thread Calculators costs $1.99 up front. Gear Formula sells 2 one-off in-app purchases. Thread Calculators asks for nothing beyond the download.

## The numbers

| Metric | Thread Calculators | Gear Formula |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/thread-calculators/id1670586227/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | — |
| Monetization | Paid | — |
| Size | 51 MB | 34 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) | [Le Minh Tran](https://appshunter.io/developer/1896777000) |

## What reviewers say

### Thread Calculators

[App page](https://appshunter.io/ios/app/thread-calculators/id1670586227)

This app provides precise thread-cutting data for various international standards. It assists machinists, engineers, and CNC professionals in quickly finding essential measurements and detailed tables for thread dimensions and cutting values.

**Highlights:** Supports international thread standards (M, UNC, NPT, etc.), Tap Hole Size Calculator, Bolt Diameter Guide, Tap Hole Forming Data, Tap Hole Repair Values, Detailed thread dimension tables

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

**In-app purchases:** none


### Gear Formula

[App page](https://appshunter.io/ios/app/gear-formula-calc-and-simulator/id6786232651)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Unlock Pro Features | $2.99 | one-time |


## Frequently asked questions

### Is Thread Calculators free?

Thread Calculators costs $1.99, with no in-app purchases.

### Is Gear Formula free?

Gear Formula is free to download, with in-app purchases available.

### Do Thread Calculators or Gear Formula have ads?

Gear Formula shows ads; Thread Calculators 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.*