# HD vs PDR Solutions

The clearest difference is update cadence: PDR Solutions at every 3 days against HD's every 6 months. 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.

HD ships an update every 6 months, PDR Solutions every 3 days. The most recent releases landed on September 8, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | HD | PDR Solutions |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 days** |
| Size | 31 MB | 24 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dorin Stratan](https://appshunter.io/developer/1649755492) | [Bluestone Apps, LLC Mobile](https://appshunter.io/developer/941163853) |

## What reviewers say

### HD

[App page](https://appshunter.io/ios/app/hd-pro/id6450000772)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDR Solutions

[App page](https://appshunter.io/ios/app/pdr-solutions/id6747028531)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HD free?

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

### Is PDR Solutions free?

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

### Do HD or PDR Solutions have ads?

Neither HD nor PDR Solutions shows ads.

### Which is updated more often, HD or PDR Solutions?

HD ships an update every 6 months, and PDR Solutions every 3 days. Most recently, HD was updated on September 8, 2026 and PDR Solutions on May 17, 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.*