# PipeGrade vs Flowbox

The clearest difference is iOS requirement: Flowbox at 13.0 against PipeGrade's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PipeGrade sells 1 one-off in-app purchase and Flowbox sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | PipeGrade | Flowbox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Size | 2 MB | 25 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Linfeng He](https://appshunter.io/developer/1209834914) | [GABRIELE CHESI](https://appshunter.io/developer/6793043905) |

## What reviewers say

### PipeGrade

[App page](https://appshunter.io/ios/app/pipegrade-pipe-slope-gauge/id6801428752)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PipeGrade Pro Lifetime | $12.99 | one-time |


### Flowbox

[App page](https://appshunter.io/ios/app/flowbox-plumber-toolkit/id6801521180)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flowbox Pro Unlock | $8.99 | one-time |


## Frequently asked questions

### Is PipeGrade free?

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

### Is Flowbox free?

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

### Do PipeGrade or Flowbox have ads?

Neither PipeGrade nor Flowbox 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.*