# AA vs Dctr

The clearest difference is update cadence: Dctr at every 6 days against AA's every 2 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.

AA ships an update every 2 months, Dctr every 6 days. The most recent releases landed on September 8, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | AA | Dctr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 44 MB | 38 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [REVOO Lab](https://appshunter.io/developer/1480417125) | [Dctr Technologies](https://appshunter.io/developer/1772768318) |

## What reviewers say

### AA

[App page](https://appshunter.io/ios/app/aa-training-app/id1591231531)

**In-app purchases:** none


### Dctr

[App page](https://appshunter.io/ios/app/dctr/id6736632551)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AA free?

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

### Is Dctr free?

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

### Do AA or Dctr have ads?

Neither AA nor Dctr shows ads.

### Which is updated more often, AA or Dctr?

AA ships an update every 2 months, and Dctr every 6 days. Most recently, AA was updated on September 8, 2026 and Dctr on September 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.*