# iPhasematch vs Orbit Map

The clearest difference is in-app purchases: iPhasematch at none against Orbit Map's 3. iPhasematch also leads on iOS requirement (15.6 vs 18.0). Orbit Map's advantage is device support (5 vs 2). On price and ads there is nothing between them.

Both are free to download. Orbit Map sells 3 in-app purchases, starting at $4.99 per month. iPhasematch asks for nothing beyond the download.

## The numbers

| Metric | iPhasematch | Orbit Map |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/iphasematch/id492370060/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Monetization | Free | — |
| Size | 6 MB | 90 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple TV, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Yushi Kaneda](https://appshunter.io/developer/492370063) | [Igor Bidenko](https://appshunter.io/developer/1824855550) |

## 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


### Orbit Map

[App page](https://appshunter.io/ios/app/orbit-map-satellite-tracker/id6804928043)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Orbit Map - Monthly | $4.99 | per month |
| Orbit Map - Annual | $19.99 | per year |
| Orbit Map - Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is iPhasematch free?

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

### Is Orbit Map free?

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

### Do iPhasematch or Orbit Map have ads?

Neither iPhasematch nor Orbit Map 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.*