# Flow Rate Help vs StressTable2021

The clearest difference is price: StressTable2021 at Free against Flow Rate Help's $0.99. Flow Rate Help's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 13.0). On ads and device support there is nothing between them.

StressTable2021 is free to download; Flow Rate Help costs $0.99 up front. StressTable2021 sells 1 one-off in-app purchase. Flow Rate Help asks for nothing beyond the download.

## The numbers

| Metric | Flow Rate Help | StressTable2021 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.3 (44 ratings)](https://appshunter.io/ios/app/flow-rate-help/id1009898806/reviews)** | — |
| Number of ratings | **44** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | — |
| Monetization | Paid | — |
| Size | 3 MB | 20 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 17+ |
| Developer | [Armchair Engineering](https://appshunter.io/developer/398901339) | [Shabbir Ahmed](https://appshunter.io/developer/1083166021) |

## What reviewers say

### Flow Rate Help

[App page](https://appshunter.io/ios/app/flow-rate-help/id1009898806)

Calculate liquid flow rate, pipe diameter, or velocity with ease. Customize units for diameter, velocity, and flow rate, and set your preferred decimal places for precise results.

**Highlights:** Solve flow rate equations, Customizable diameter units, Customizable velocity units, Customizable flow rate units, Set decimal places

**Features:** Vision Pro support

**In-app purchases:** none


### StressTable2021

[App page](https://appshunter.io/ios/app/stresstable2021/id6461216630)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Non-Consumable Subscription | $9.99 | one-time |


## Frequently asked questions

### Is Flow Rate Help free?

Flow Rate Help costs $0.99, with no in-app purchases.

### Is StressTable2021 free?

StressTable2021 is free to download, with in-app purchases available.

### Do Flow Rate Help or StressTable2021 have ads?

Neither Flow Rate Help nor StressTable2021 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.*