# WaterEye vs black tower

The clearest difference is update cadence: black tower at every 9 days against WaterEye's every 4 weeks. WaterEye's advantage is iOS requirement (13.6 vs 15.1). 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.

WaterEye ships an update every 4 weeks, black tower every 9 days. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | WaterEye | black tower |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 9 days** |
| Size | 2 MB | 140 MB |
| Requires iOS | **13.6** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Expertron Group (Pty) Ltd](https://appshunter.io/developer/1528285164) | [BLACK TOWER EVC (PTY) LTD](https://appshunter.io/developer/1839447209) |

## What reviewers say

### WaterEye

[App page](https://appshunter.io/ios/app/watereye/id1533644249)

**Features:** macOS Compatibility

**In-app purchases:** none


### black tower

[App page](https://appshunter.io/ios/app/black-tower/id6752488388)

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

**In-app purchases:** none


## Frequently asked questions

### Is WaterEye free?

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

### Is black tower free?

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

### Do WaterEye or black tower have ads?

Neither WaterEye nor black tower shows ads.

### Which is updated more often, WaterEye or black tower?

WaterEye ships an update every 4 weeks, and black tower every 9 days. Most recently, WaterEye was updated on October 25, 2026 and black tower on October 30, 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.*