# DP vs AB

The clearest difference is in-app purchases: DP at none against AB's 3. DP also leads on ads (none vs shown). AB's advantage is update cadence (every 3 weeks vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. AB sells 3 one-off in-app purchases. DP asks for nothing beyond the download.

DP ships an update every 2 months, AB every 3 weeks. The most recent releases landed on October 5, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | DP | AB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 27 MB | 41 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Davy Raitt](https://appshunter.io/developer/1795318281) | [Thomas Baric](https://appshunter.io/developer/1872894014) |

## What reviewers say

### DP

[App page](https://appshunter.io/ios/app/dp-700-fabric-data-engineer/id6751915655)

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

**In-app purchases:** none


### AB

[App page](https://appshunter.io/ios/app/ab-731-practice-test/id6761743560)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AB-731 Pro | $2.99 | one-time |
| AB-731 Pro | $4.99 | one-time |
| Microsoft Business AI Bundle | $6.99 | one-time |


## Frequently asked questions

### Is DP free?

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

### Is AB free?

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

### Do DP or AB have ads?

AB shows ads; DP does not.

### Which is updated more often, DP or AB?

DP ships an update every 2 months, and AB every 3 weeks. Most recently, DP was updated on October 5, 2026 and AB on October 16, 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.*