# iPhasematch vs APE Optics Calculator

The clearest difference is rating: iPhasematch at 5.0 against APE Optics Calculator's 4.8. iPhasematch also leads on update cadence (every 7 months vs every 14 months). APE Optics Calculator's advantage is iOS requirement (8.0 vs 15.6). On price, ratings volume, 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.

iPhasematch holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

iPhasematch ships an update every 7 months, APE Optics Calculator every 14 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | iPhasematch | APE Optics Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/iphasematch/id492370060/reviews)** | [4.8 (4 ratings)](https://appshunter.io/ios/app/ape-optics-calculator/id639207733/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 14 months |
| Monetization | Free | Free |
| Size | 6 MB | 34 MB |
| Requires iOS | 15.6 | **8.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Yushi Kaneda](https://appshunter.io/developer/492370063) | [Stefan Popien](https://appshunter.io/developer/639207736) |

## What reviewers say

### iPhasematch

[App page](https://appshunter.io/ios/app/iphasematch/id492370060)

Calculate nonlinear optical effects like second-harmonic generation and spontaneous parametric down-conversion. This app provides phasematching orientations, nonlinear coefficients, and tolerance values for various crystals based on Sellmeier equations.

**Highlights:** Phasematching condition calculation, Sellmeier equation integration, Effective nonlinear optical coefficients, Walk-off and angular tolerance, Temperature tolerance, Supported crystal list

**Features:** macOS Compatibility

**In-app purchases:** none


### APE Optics Calculator

[App page](https://appshunter.io/ios/app/ape-optics-calculator/id639207733)

This app simplifies complex calculations for ultrafast and nonlinear laser optics. It handles frequency generation, optical parametric processes, and spectroscopic conversions. It also calculates pulse characteristics and power conversions for laser systems.

**Highlights:** Sum/Difference Frequency Generation calculations, Optical Parametric Oscillator/Amplifier calculations, Spectroscopy calculations (CARS, SRS), Wavelength, wavenumber, photon energy conversion, Pulse characterization (bandwidth, duration, dispersion), Power and energy conversion

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iPhasematch free?

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

### Is APE Optics Calculator free?

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

### Which has better reviews, iPhasematch or APE Optics Calculator?

iPhasematch is rated higher. iPhasematch averages 5.0 out of 5 from 3 ratings, while APE Optics Calculator averages 4.8 from 4 ratings.

### Do iPhasematch or APE Optics Calculator have ads?

Neither iPhasematch nor APE Optics Calculator shows ads.

### Which is updated more often, iPhasematch or APE Optics Calculator?

iPhasematch ships an update every 7 months, and APE Optics Calculator every 14 months. Most recently, iPhasematch was updated on October 23, 2026 and APE Optics Calculator on October 23, 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.*