# HydroCalc Basic vs PipeQ

The clearest difference is device support: HydroCalc Basic at 3 against PipeQ's 1. HydroCalc Basic also leads on iOS requirement (15.1 vs 18.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. HydroCalc Basic sells 1 one-off in-app purchase and PipeQ sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | HydroCalc Basic | PipeQ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | — |
| Size | 35 MB | 20 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Transparent Blue Water LLC](https://appshunter.io/developer/1847968351) | [Shenzhen Seize Times E-Commerce Co., Ltd.](https://appshunter.io/developer/368397197) |

## What reviewers say

### HydroCalc Basic

[App page](https://appshunter.io/ios/app/hydrocalc-basic/id6752577110)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Flow Units & Ad-Free | $1.99 | one-time |


### PipeQ

[App page](https://appshunter.io/ios/app/pipeq/id6796896934)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PipeQ Pro Monthly | $1.99 | per month |
| PipeQ Pro Yearly | $19.99 | per year |
| PipeQ Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is HydroCalc Basic free?

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

### Is PipeQ free?

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

### Do HydroCalc Basic or PipeQ have ads?

Neither HydroCalc Basic nor PipeQ shows ads.

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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.*