# Flow Conversions vs Pipe Pressure drop calculator

The clearest difference is rating: Flow Conversions at 5.0 against Pipe Pressure drop calculator's 4.0. Flow Conversions also leads on in-app purchases (none vs 1) and update cadence (every 8 days vs every 3 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Pipe Pressure drop calculator sells 1 one-off in-app purchase. Flow Conversions asks for nothing beyond the download.

Flow Conversions holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Flow Conversions ships an update every 8 days, Pipe Pressure drop calculator every 3 months. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Flow Conversions | Pipe Pressure drop calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flow-conversions/id1276206364/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/pipe-pressure-drop-calculator/id6752385472/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 months |
| Monetization | Free | — |
| Size | 12 MB | 61 MB |
| Requires iOS | **10.3** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeff Evans](https://appshunter.io/developer/1155207587) | [Ashvin Kevadiya](https://appshunter.io/developer/1756324971) |

## What reviewers say

### Flow Conversions

[App page](https://appshunter.io/ios/app/flow-conversions/id1276206364)

Easily convert water flow rates between various units of measurement. This utility app provides a straightforward way to calculate and understand different flow rate values.

**Highlights:** Calculate flow rate, Multiple units of measure, Water flow conversions, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Pipe Pressure drop calculator

[App page](https://appshunter.io/ios/app/pipe-pressure-drop-calculator/id6752385472)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $7.99 | one-time |


## Frequently asked questions

### Is Flow Conversions free?

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

### Is Pipe Pressure drop calculator free?

Pipe Pressure drop calculator is free to download, with in-app purchases available.

### Which has better reviews, Flow Conversions or Pipe Pressure drop calculator?

Flow Conversions is rated higher. Flow Conversions averages 5.0 out of 5 from 1 ratings, while Pipe Pressure drop calculator averages 4.0 from 1 ratings.

### Do Flow Conversions or Pipe Pressure drop calculator have ads?

Neither Flow Conversions nor Pipe Pressure drop calculator shows ads.

### Which is updated more often, Flow Conversions or Pipe Pressure drop calculator?

Flow Conversions ships an update every 8 days, and Pipe Pressure drop calculator every 3 months. Most recently, Flow Conversions was updated on October 16, 2026 and Pipe Pressure drop calculator on October 24, 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.*