SEC Heat Transfer vs Pypley
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SEC Heat Transfer
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S.E.C. mobile app brings you a new and pleasant heat transfer experience! You can enjoy and access S.E.C. mobile app at anywhere and anytime. Main feature: 1. Order Tracking Be up to date with the latest order tracking 2. Temperature monitoring system Real time control and monitor of heat machine temperature Set the temperature range in minimum and maximum value Push message as alert function when the heat machine temperature is out of the range 3. Heat Transfer Specification Free download of S.E.C. heat transfer specification with the related product 4. Air Pressure Calculator Calculate the correct heat-press pressure 5. What's New Receive the latest news and promotions
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
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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.
Screenshots
Verdict
The clearest difference is price: SEC Heat Transfer at Free against Pypley's $2.99. Pypley's advantage is update cadence (every 3 weeks vs every 3 months) and iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support 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
SEC Heat Transfer is free to download; Pypley costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SEC Heat Transfer ships an update every 3 months, Pypley every 3 weeks. Both last shipped on November 3, 2026.
| Parameter | SEC Heat Transfer | Pypley |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 83.3% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | S.E.C. Accessories Limited | Ali Mohammed |
In-app purchases
SEC Heat Transfer
No in-app purchases
Pypley
No in-app purchases
Questions
Is SEC Heat Transfer free?
Is Pypley free?
Do SEC Heat Transfer or Pypley have ads?
Which is updated more often, SEC Heat Transfer or Pypley?
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