# Percentage vs Flow Rate Help

The clearest difference is rating: Flow Rate Help at 4.3 against Percentage's 3.0. Flow Rate Help also leads on ratings volume (44 vs 2) and iOS requirement (11.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Percentage costs $0.99 and Flow Rate Help $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Flow Rate Help holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: Flow Rate Help has 44 ratings behind it against 2, so its average is the more settled of the two.

Percentage ships an update every 14 months, Flow Rate Help every 15 months. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Percentage | Flow Rate Help |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/percentage/id336918440/reviews) | **[4.3 (44 ratings)](https://appshunter.io/ios/app/flow-rate-help/id1009898806/reviews)** |
| Number of ratings | 2 | **44** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 14 months** | Every 15 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 3 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [Armchair Engineering](https://appshunter.io/developer/398901339) |

## What reviewers say

### Percentage

[App page](https://appshunter.io/ios/app/percentage/id336918440)

This utility calculates proportions between two values expressed as percentages. It allows you to find any unknown value in a percentage equation, including percent increases or decreases.

**Highlights:** Calculate any percentage value, Find percent increase, Find percent decrease, Supports iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Percentage free?

Percentage costs $0.99, with no in-app purchases.

### Is Flow Rate Help free?

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

### Which has better reviews, Percentage or Flow Rate Help?

Flow Rate Help is rated higher. Percentage averages 3.0 out of 5 from 2 ratings, while Flow Rate Help averages 4.3 from 44 ratings.

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

Neither Percentage nor Flow Rate Help shows ads.

### Which is updated more often, Percentage or Flow Rate Help?

Percentage ships an update every 14 months, and Flow Rate Help every 15 months. Most recently, Percentage was updated on October 31, 2026 and Flow Rate Help on November 6, 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.*