# APTROCK vs AquaMetr

The clearest difference is update cadence: AquaMetr at monthly against APTROCK's every 3 months. APTROCK's advantage is iOS requirement (13.0 vs 17.6). 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.

APTROCK ships an update every 3 months, AquaMetr monthly. The most recent releases landed on May 16, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | APTROCK | AquaMetr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 48 MB | 25 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sixiangxian Enterprise Development (Shanghai) Co., Ltd.](https://appshunter.io/developer/1758454920) | [SILICON CRAFT TECHNOLOGY PUBLIC COMPANY LIMITED](https://appshunter.io/developer/1279674870) |

## What reviewers say

### APTROCK

[App page](https://appshunter.io/ios/app/aptrock/id6499242715)

**In-app purchases:** none


### AquaMetr

[App page](https://appshunter.io/ios/app/aquametr/id6741795863)

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

**In-app purchases:** none


## Frequently asked questions

### Is APTROCK free?

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

### Is AquaMetr free?

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

### Do APTROCK or AquaMetr have ads?

Neither APTROCK nor AquaMetr shows ads.

### Which is updated more often, APTROCK or AquaMetr?

APTROCK ships an update every 3 months, and AquaMetr monthly. Most recently, APTROCK was updated on May 16, 2026 and AquaMetr on September 19, 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.*