# Tire Size Calculator vs Optics Workbench

The clearest difference is price: Optics Workbench at Free against Tire Size Calculator's $3.99. Tire Size Calculator's advantage is iOS requirement (12.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Optics Workbench is free to download; Tire Size Calculator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Tire Size Calculator | Optics Workbench |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 41.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Paid | — |
| Size | 4 MB | 4 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cheng Fan](https://appshunter.io/developer/599384923) | [浚哲 彭](https://appshunter.io/developer/6787808310) |

## What reviewers say

### Tire Size Calculator

[App page](https://appshunter.io/ios/app/tire-size-calculator/id599384920)

Easily compare tire and wheel specifications for upgrades. Calculate equivalent sprung weight differences and get safe, performance-enhancing recommendations. Supports both Imperial and Metric units.

**Highlights:** Compare tire and wheel specs, Get upgrade recommendations, Calculate sprung weight difference, Supports Imperial and Metric units, Visual tire comparison graphs, Adjustable difference variables

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

**In-app purchases:** none


### Optics Workbench

[App page](https://appshunter.io/ios/app/optics-workbench/id6794776366)

**In-app purchases:** none


## Frequently asked questions

### Is Tire Size Calculator free?

Tire Size Calculator costs $3.99, with no in-app purchases.

### Is Optics Workbench free?

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

### Do Tire Size Calculator or Optics Workbench have ads?

Neither Tire Size Calculator nor Optics Workbench shows ads.

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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.*