# Crystal Aligner vs Orthodontist

The clearest difference is in-app purchases: Crystal Aligner at none against Orthodontist's 1. Crystal Aligner also leads on iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Orthodontist sells 1 one-off in-app purchase. Crystal Aligner asks for nothing beyond the download.

## The numbers

| Metric | Crystal Aligner | Orthodontist |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 12 MB | 56 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Orthoclear Sağlık Teknolojileri San. Tic. Ltd. Şti.](https://appshunter.io/developer/1647709392) | [Kedi Mobile Applications, LLC](https://appshunter.io/developer/1651583255) |

## What reviewers say

### Crystal Aligner

[App page](https://appshunter.io/ios/app/crystal-aligner/id6443614330)

**Features:** macOS Compatibility

**In-app purchases:** none


### Orthodontist

[App page](https://appshunter.io/ios/app/orthodontist/id6444021818)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Consult an Orthodontist | $5.99 | one-time |


## Frequently asked questions

### Is Crystal Aligner free?

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

### Is Orthodontist free?

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

### Do Crystal Aligner or Orthodontist have ads?

Neither Crystal Aligner nor Orthodontist 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.*