# Pypley vs SmartP

The clearest difference is price: SmartP at Free against Pypley's $2.99. Pypley's advantage is update cadence (every 3 weeks vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

SmartP is free to download; Pypley costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pypley ships an update every 3 weeks, SmartP every 4 months. The most recent releases landed on June 25, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Pypley | SmartP |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/pypley/id1540444278/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Paid | — |
| Size | 4 MB | 38 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Ali Mohammed](https://appshunter.io/developer/1540444280) | [魁 胡](https://appshunter.io/developer/1810231289) |

## 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


### SmartP

[App page](https://appshunter.io/ios/app/smartp/id6478264819)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pypley free?

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

### Is SmartP free?

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

### Do Pypley or SmartP have ads?

Neither Pypley nor SmartP shows ads.

### Which is updated more often, Pypley or SmartP?

Pypley ships an update every 3 weeks, and SmartP every 4 months. Most recently, Pypley was updated on June 25, 2026 and SmartP on September 17, 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.*