Comparison

Cryogenics Pro vs PipeDN

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Cryogenics Pro

This app provides thermodynamic calculations and equipment sizing tools for engineers. It offers accurate fluid data and process analysis using the CoolProp library, with features like unit conversion and basic fluid property queries.

Highlights
  • Thermodynamic calculations
  • Equipment sizing tools
  • CoolProp library integration
  • Unit converter
  • Basic fluid properties
  • Engineering guidelines
Features
Read full description

Cryogenics Workshop is a powerful mobile application integrating comprehensive thermodynamic calculations and equipment sizing tools. Leveraging the industry-leading CoolProp library, we provide accurate, real-time fluid data and process analysis to help you complete engineering tasks efficiently. Why Choose Cryogenics Tools? Accurate & Reliable: All calculations are based on the widely recognized CoolProp library, ensuring scientific accuracy. Intuitive & Easy to Use: A clean and clear user interface makes complex engineering calculations accessible at your fingertips. Comprehensive Features: From basic fluid properties to advanced equipment sizing, meeting your diverse engineering needs. Free Features, Available Instantly: Unit Converter: Quickly and conveniently convert various engineering units. Basic Fluid Properties: Query basic thermodynamic properties of common fluids. Engineering Guidelines: Gain in-depth understanding of core calculation principles, such as compressor calculation processes. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PipeDN

Features
Read full description

Need to determine the pipe size for a new industrial project? Want to check the maximum recommended flow rate for an existing fluid line? PipeDN is the ultimate pocket tool for industry professionals. Quickly find the ideal Nominal Diameter (DN) or maximum operating flow rate using velocity limits based on practical, field-tested engineering standards. Beyond delivering the exact requirement, the app generates a smart reference table of neighboring commercial pipe sizes (larger and smaller). This gives you the comprehensive technical data to choose the best design alternative for your facility. Highlighted Features: • Calculation Modules: "Find Ideal DN" and "Find Max Flow". • Native support for multiple pipe materials and schedules. • Professional PDF Reports: Export a detailed calculation memory directly to PDF. Include specific pipeline TAGs for customized, ready-to-archive engineering results. • Custom Units: Fully adapt pressure, temperature, flow rate, and diameter unit sets to match your region's standard. • Embedded Physical Tables: The Steam module features built-in thermodynamic properties for precise dynamic density tracking. Supported Fluids & Applications: • Water & Condensate: Treated Water, Condensate (Pump Discharge, Pump Suction, Steam Trap Return). • Steam: Advanced sizing targeting Saturated Steam and Superheated Steam lines. • Process Gases: Combustion Air, Flammable & Non-Flammable Gases, N₂, O₂, LPG. • Compressed Air: Limits tailored for Main Lines and Secondary Branches. • Vacuum Systems (Manifolds, Separators, Blowers). • Pulp & Paper Industry Niche: Exclusive calculation module for Cellulose Pulp responding to various consistency levels (up to 6%), as well as comprehensive chemical recovery liquors (Black Liquor in 4 concentrations, Green Liquor, Lime Mud, Dregs, Filtrate, Alkalis, and Tall Oil Soap). • Common Chemicals: Sodium Hydroxide, Sulphuric Acid, Antifoams, and Lubricating Oils. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Cryogenics Pro4 screens
PipeDN4 screens

Verdict

The call

Cryogenics Pro and PipeDN are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Cryogenics Pro sells 3 in-app purchases, starting at $0.99 per month and PipeDN sells 3 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Cryogenics Pro ships an update every 10 days, PipeDN every 3 weeks. The most recent releases landed on October 18, 2026 and October 23, 2026 respectively.

ScorecardNo meaningful differences
Cryogenics Pro versus PipeDN: the parameters behind the verdict, then further details
ParameterCryogenics ProPipeDN
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size54 MB40 MB
Age rating4+4+
Developer立中 侯AQUILES DE LIMA

In-app purchases

3 purchases

Cryogenics Pro

Subscriptions2
  • Monthly Subscription$0.991 Month
  • Yearly Subscription7 Days trial$9.991 Year
One-time1
  • Lifecycle purchase.$29.99
3 purchases

PipeDN

Subscriptions2
  • PipeDN Pro$4.991 Year
  • PipeDN Pro$7.991 Month
One-time1
  • PipeDN Pro$79.99

Questions

Is Cryogenics Pro free?
Cryogenics Pro is free to download, with in-app purchases available.
Is PipeDN free?
PipeDN is free to download, with in-app purchases available.
Do Cryogenics Pro or PipeDN have ads?
Neither Cryogenics Pro nor PipeDN shows ads.
Which is updated more often, Cryogenics Pro or PipeDN?
Cryogenics Pro ships an update every 10 days, and PipeDN every 3 weeks. Most recently, Cryogenics Pro was updated on October 18, 2026 and PipeDN on October 23, 2026.

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