# Pypley vs Pipe Flow Liquid Pipe Length

The clearest difference is price: Pipe Flow Liquid Pipe Length at Free against Pypley's $2.99. Pipe Flow Liquid Pipe Length also leads on rating (3.0 vs 1.0) and iOS requirement (11.0 vs 13.0). Pypley's advantage is in-app purchases (none vs 1). On ratings volume, update cadence, ads and device support there is nothing between them.

Pipe Flow Liquid Pipe Length is free to download; Pypley costs $2.99 up front. Pipe Flow Liquid Pipe Length sells 1 one-off in-app purchase. Pypley asks for nothing beyond the download.

Pipe Flow Liquid Pipe Length holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Pypley ships an update every 3 weeks, Pipe Flow Liquid Pipe Length fortnightly. The most recent releases landed on June 25, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Pypley | Pipe Flow Liquid Pipe Length |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/pypley/id1540444278/reviews) | **[3.0 (1 ratings)](https://appshunter.io/ios/app/pipe-flow-liquid-pipe-length/id1582968040/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 4 MB | 66 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ali Mohammed](https://appshunter.io/developer/1540444280) | [Pipe Flow Software](https://appshunter.io/developer/1193064957) |

## What reviewers say

### Pypley

[App page](https://appshunter.io/ios/app/pypley/id1540444278)

This app calculates flow rate, pressure drop, and pump performance for circular pipe systems. It supports custom pumps and fittings, and allows for unit conversions between Metric and US Imperial. Ideal for hydraulic and process engineers for early-stage design and quick estimations.

**Highlights:** Flow rate and pressure drop calculation, Customizable pump and fitting database, Metric/Imperial unit conversion, Pump performance curve plotting, Cavitation risk assessment (NPSH), Reynolds number and friction factor calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### Pipe Flow Liquid Pipe Length

[App page](https://appshunter.io/ios/app/pipe-flow-liquid-pipe-length/id1582968040)

This utility app calculates the maximum pipe length for a given pressure loss, flow rate, and pipe diameter. It offers comprehensive results, customizable databases for materials and fluids, and supports both Imperial and Metric units. Engineers can generate professional reports and save results for later use.

**Highlights:** Maximum pipe length calculation, Friction loss and fitting loss calculation, Integrated databases for liquids, pipes, and fittings, User-definable custom data, Imperial and Metric unit support, Professional Excel and PDF reports, Results verification against published data

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pipe Flow Pipe Length | $4.99 | one-time |


## Frequently asked questions

### Is Pypley free?

Pypley costs $2.99, with no in-app purchases.

### Is Pipe Flow Liquid Pipe Length free?

Pipe Flow Liquid Pipe Length is free to download, with in-app purchases available.

### Which has better reviews, Pypley or Pipe Flow Liquid Pipe Length?

Pipe Flow Liquid Pipe Length is rated higher. Pypley averages 1.0 out of 5 from 1 ratings, while Pipe Flow Liquid Pipe Length averages 3.0 from 1 ratings.

### Do Pypley or Pipe Flow Liquid Pipe Length have ads?

Neither Pypley nor Pipe Flow Liquid Pipe Length shows ads.

### Which is updated more often, Pypley or Pipe Flow Liquid Pipe Length?

Pypley ships an update every 3 weeks, and Pipe Flow Liquid Pipe Length fortnightly. Most recently, Pypley was updated on June 25, 2026 and Pipe Flow Liquid Pipe Length on September 22, 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.*