# Dr.D vs DP

The clearest difference is price: Dr.D at Free against DP's $4.99. Dr.D also leads on iOS requirement (13.0 vs 15.1). DP's advantage is update cadence (every 2 months vs every 4 months). On ads, in-app purchases and device support there is nothing between them.

Dr.D is free to download; DP costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Dr.D ships an update every 4 months, DP every 2 months. Both last shipped on September 29, 2026.

## The numbers

| Metric | Dr.D | DP |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 257 MB | 34 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Raiza Shukoor](https://appshunter.io/developer/1784436423) | [satoshi yoshida](https://appshunter.io/developer/1873856165) |

## What reviewers say

### Dr.D

[App page](https://appshunter.io/ios/app/drd/id6739247762)

**Features:** Vision Pro support

**In-app purchases:** none


### DP

[App page](https://appshunter.io/ios/app/dp-700-fabric-data-eng-prep/id6777890204)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dr.D free?

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

### Is DP free?

DP costs $4.99, with no in-app purchases.

### Do Dr.D or DP have ads?

Neither Dr.D nor DP shows ads.

### Which is updated more often, Dr.D or DP?

Dr.D ships an update every 4 months, and DP every 2 months. Most recently, Dr.D was updated on September 29, 2026 and DP on September 29, 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.*