# PERIO PDKS vs VDA

The clearest difference is update cadence: VDA at every 2 days against PERIO PDKS's monthly. 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.

PERIO PDKS ships an update monthly, VDA every 2 days. The most recent releases landed on September 29, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | PERIO PDKS | VDA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Size | 35 MB | 38 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ART ELEKTRONIK SANAYI VE TICARET LIMITED SIRKETI](https://appshunter.io/developer/1631508461) | [Osman Bugra Seyda](https://appshunter.io/developer/1896392420) |

## What reviewers say

### PERIO PDKS

[App page](https://appshunter.io/ios/app/perio-pdks/id1631508459)

**Features:** macOS Compatibility

**In-app purchases:** none


### VDA

[App page](https://appshunter.io/ios/app/vda/id6767127449)

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

**In-app purchases:** none


## Frequently asked questions

### Is PERIO PDKS free?

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

### Is VDA free?

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

### Do PERIO PDKS or VDA have ads?

Neither PERIO PDKS nor VDA shows ads.

### Which is updated more often, PERIO PDKS or VDA?

PERIO PDKS ships an update monthly, and VDA every 2 days. Most recently, PERIO PDKS was updated on September 29, 2026 and VDA on September 30, 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.*