# ToptiCalc Optics Calculator vs Unifize

The clearest difference is update cadence: Unifize at every 3 weeks against ToptiCalc Optics Calculator's every 41 months. Unifize also leads on device support (3 vs 1) and iOS requirement (13.4 vs 16.6). On price, ads 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.

ToptiCalc Optics Calculator ships an update every 41 months, Unifize every 3 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | ToptiCalc Optics Calculator | Unifize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/topticalc-optics-calculator/id919586984/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 2 MB | 74 MB |
| Requires iOS | 16.6 | **13.4** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Toptica Photonics AG](https://appshunter.io/developer/919586983) | [Unifize Solutions Private Limited](https://appshunter.io/developer/1344822192) |

## What reviewers say

### ToptiCalc Optics Calculator

[App page](https://appshunter.io/ios/app/topticalc-optics-calculator/id919586984)

This application provides essential calculations and conversions for laser optics, covering areas like spectral unit conversion, Fabry-Perot calculations, and Gaussian beam focusing. It's designed to be a convenient tool for quick access to important optical formulas.

**Highlights:** Spectral Unit Conversion, Fabry-Perot Calculations, Gaussian Beam Focusing, Refraction at a Plane Surface, Short Laser Pulse Calculations, Pulse Train Calculations, Decibel Conversion

**In-app purchases:** none


### Unifize

[App page](https://appshunter.io/ios/app/unifize/id1344822193)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ToptiCalc Optics Calculator free?

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

### Is Unifize free?

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

### Do ToptiCalc Optics Calculator or Unifize have ads?

Neither ToptiCalc Optics Calculator nor Unifize shows ads.

### Which is updated more often, ToptiCalc Optics Calculator or Unifize?

ToptiCalc Optics Calculator ships an update every 41 months, and Unifize every 3 weeks. Most recently, ToptiCalc Optics Calculator was updated on November 1, 2026 and Unifize on November 2, 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.*