# PCA vs ECB Depth

The clearest difference is update cadence: PCA at every 3 days against ECB Depth's every 9 months. PCA also leads on iOS requirement (10.3 vs 14.0). 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.

PCA ships an update every 3 days, ECB Depth every 9 months. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | PCA | ECB Depth |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 9 months |
| Size | 29 MB | 41 MB |
| Requires iOS | **10.3** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Blayney Partnership](https://appshunter.io/developer/404801155) | [Holistic Data Management Services Ltd](https://appshunter.io/developer/1308322923) |

## What reviewers say

### PCA

[App page](https://appshunter.io/ios/app/pca/id1344791055)

**Features:** macOS Compatibility

**In-app purchases:** none


### ECB Depth

[App page](https://appshunter.io/ios/app/ecb-depth/id1457214864)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PCA free?

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

### Is ECB Depth free?

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

### Do PCA or ECB Depth have ads?

Neither PCA nor ECB Depth shows ads.

### Which is updated more often, PCA or ECB Depth?

PCA ships an update every 3 days, and ECB Depth every 9 months. Most recently, PCA was updated on October 4, 2026 and ECB Depth on October 3, 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.*