# OptoFitting vs Lens thickness calculator

The clearest difference is in-app purchases: Lens thickness calculator at none against OptoFitting's 2. OptoFitting's advantage is update cadence (monthly vs every 2 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. OptoFitting sells 2 in-app purchases, starting at $19.99 per month. Lens thickness calculator asks for nothing beyond the download.

OptoFitting ships an update monthly, Lens thickness calculator every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | OptoFitting | Lens thickness calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/optofitting/id1576655068/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 39 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Alireza Nazer](https://appshunter.io/developer/1576655070) | [Andrii Parkhomov](https://appshunter.io/developer/1858407504) |

## What reviewers say

### OptoFitting

[App page](https://appshunter.io/ios/app/optofitting/id1576655068)

Streamline progressive and single-vision lens fitting with precise, repeatable measurements. This app guides you through capturing key fitting parameters using a 3D printed jig and your device, reducing errors and speeding up the process for eyewear professionals.

**Highlights:** Precise fitting measurements, Step-by-step workflow, 3D printable jig included, Tutorial videos and FAQs, Reduces fitting errors, Fast workflow for professionals

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 Month(+3 Month free) | $19.99 | per month |
| Premium 6 Month(+3 Month free) | $106.99 | per 6 months |


### Lens thickness calculator

[App page](https://appshunter.io/ios/app/lens-thickness-calculator/id6757977779)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OptoFitting free?

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

### Is Lens thickness calculator free?

Lens thickness calculator is free to download, with no in-app purchases.

### Do OptoFitting or Lens thickness calculator have ads?

Neither OptoFitting nor Lens thickness calculator shows ads.

### Which is updated more often, OptoFitting or Lens thickness calculator?

OptoFitting ships an update monthly, and Lens thickness calculator every 2 months. Most recently, OptoFitting was updated on November 3, 2026 and Lens thickness calculator on October 31, 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.*