# Fit Tolerance Calculator vs AirController 5G

The clearest difference is price: AirController 5G at Free against Fit Tolerance Calculator's $2.99. AirController 5G also leads on update cadence (every 5 days vs every 4 months) and iOS requirement (12.0 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

AirController 5G is free to download; Fit Tolerance Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Fit Tolerance Calculator ships an update every 4 months, AirController 5G every 5 days. The most recent releases landed on October 29, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Fit Tolerance Calculator | AirController 5G |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/fit-tolerance-calculator/id1448302769/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 72.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | Paid | — |
| Size | 1 MB | 78 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Kei Suefuji](https://appshunter.io/developer/1388335881) | [成都蓉渝电子技术有限公司](https://appshunter.io/developer/1544750771) |

## What reviewers say

### Fit Tolerance Calculator

[App page](https://appshunter.io/ios/app/fit-tolerance-calculator/id1448302769)

This app calculates the fit tolerance for holes and shafts based on ISO standards. Users input a diameter, select tolerance ranges and classes, and the app displays fitting tolerance values, distinguishing between clearance, transition, and interference fits. It also calculates minimum and maximum clearance or interference.

**Highlights:** Calculate hole and shaft fit tolerances, Based on ISO standards, Select tolerance ranges and classes, Distinguish fit types (clearance, transition, interference), Calculate minimum and maximum clearance/interference, Supports diameters up to 3150 mm

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

**In-app purchases:** none


### AirController 5G

[App page](https://appshunter.io/ios/app/aircontroller-5g/id6786352439)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fit Tolerance Calculator free?

Fit Tolerance Calculator costs $2.99, with no in-app purchases.

### Is AirController 5G free?

AirController 5G is free to download, with no in-app purchases.

### Do Fit Tolerance Calculator or AirController 5G have ads?

Neither Fit Tolerance Calculator nor AirController 5G shows ads.

### Which is updated more often, Fit Tolerance Calculator or AirController 5G?

Fit Tolerance Calculator ships an update every 4 months, and AirController 5G every 5 days. Most recently, Fit Tolerance Calculator was updated on October 29, 2026 and AirController 5G on October 14, 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.*