Pypley vs Engineering Machine Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pypley
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.
- 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
Read full descriptionHide full description
Pypley calculates flow rate, pressure drop, and pump performance for circular pipe systems with Newtonian liquids. Build serial pipe systems using a pump database, fittings, and valves, with support for custom pumps and fittings stored via iCloud. Designed for hydraulic and process engineers, Pypley supports early-stage design and quick estimations. Key Features: * Converts all project parameters between Metric and US Imperial units. * Calculates flow rate, pipe velocity, and pressure drop in pipes. * Generates pressure loss tables for fittings and pipes in the system. * Includes native and customizable pump database. * Adjusts pump performance via speed (RPM) and impeller diameter. * Plots pump and system performance curves. * Computes K values for fittings using 3K and 2K methods. * Determines Reynolds number for each pipe diameter. * Calculates pipe friction factor using the Colebrook equation. * Reports pump discharge pressure and pressure at each pipe’s start. * Evaluates NPSHr and NPSHa to assess pump cavitation risk. * Supports custom fitting lists with Kv/Cv coefficients or pressure/flow data. * Detects negative pressure in pipelines. * Identifies when centrifugal pumps reach maximum flow capacity. * Organises projects chronologically, with newest first. * Provides an expanded pipe material library with enhanced data. Pypley is a design tool for hydraulic and process applications, ideal for initial designs or rapid calculations. Note: Pypley does not support parallel or network flow analysis. Disclaimer: While we strive for accuracy and will address any issues, the developer is not liable for errors or omissions in Pypley’s calculations.
Engineering Machine Calculator
This app provides offline calculations for milling and turning operations. It helps users determine parameters like cutting speed, spindle speed, and metal removal rate. All calculations are saved for easy access in the history tab.
- Offline milling and turning calculations
- Cutting speed calculation
- Spindle speed calculation
- Metal removal rate calculation
- Power requirement calculation
- Saved calculation history
Read full descriptionHide full description
Download the Engineering Machining Calculator to accurately calculate milling and turning operations anywhere and at anytime, offline. Each calculation is saved in the 'History' tab where by the user can easily go back to. The following parameters can be calculated on this app : - Cutting Speed - Spindle Speed - Metal Removal Rate - Power Requirement - Time in Cut - Table Feed - Torque + Many more!
Screenshots
Verdict
The clearest difference is price: Engineering Machine Calculator at Free against Pypley's $2.99. Engineering Machine Calculator also leads on review sentiment (100% vs 83%). Pypley's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Engineering Machine Calculator is free to download; Pypley costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Pypley | Engineering Machine Calculator |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 83.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 4 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Ali Mohammed | Mohammed Waqas Zaman |
Customer experience
Pypley
Engineering Machine Calculator
In-app purchases
Pypley
No in-app purchases
Engineering Machine Calculator
No in-app purchases
Questions
Is Pypley free?
Is Engineering Machine Calculator free?
Do Pypley or Engineering Machine Calculator have ads?
Other comparisons















