# dtPAY vs Crystal Aligner v2

The clearest difference is iOS requirement: Crystal Aligner v2 at 12.0 against dtPAY's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | dtPAY | Crystal Aligner v2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 16 MB | 40 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [distedavim teknoloji hizmetleri anonim sirketi](https://appshunter.io/developer/1624455873) | [Orthoclear Sağlık Teknolojileri San. Tic. Ltd. Şti.](https://appshunter.io/developer/1647709392) |

## What reviewers say

### dtPAY

[App page](https://appshunter.io/ios/app/dtpay/id6446242806)

**Features:** macOS Compatibility

**In-app purchases:** none


### Crystal Aligner v2

[App page](https://appshunter.io/ios/app/crystal-aligner-v2/id6471303250)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is dtPAY free?

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

### Is Crystal Aligner v2 free?

Crystal Aligner v2 is free to download, with no in-app purchases.

### Do dtPAY or Crystal Aligner v2 have ads?

Neither dtPAY nor Crystal Aligner v2 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.*