Comparison

Natural Gas Pipe Size vs Engineering Forms

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

Head to head
About

Natural Gas Pipe Size

Quickly calculate natural gas pipe diameters and pressure drops for installations. Supports a wide range of conditions, materials, and units, providing instant and accurate results without subscriptions or ads.

Highlights
  • Instant pipe diameter calculation
  • Pressure drop estimation
  • Supports various conditions (heat, pressure, temp)
  • Metric and imperial units
  • Material and fitting selection
  • No internet connection required
Features
Read full description

Why not just use an AI assistant to quickly size pipes for natural gas installations? If you prefer fast and consistent results with a familiar user interface, no second-guessing, no trying out different AI models and no subscriptions - this app is for you. #### Pipe sizing and pressure drop calculation for natural gas installations made easy Estimate required pipe diameter for natural gas piping / installations in an instant. Calculate pressure drop for the selected pipe section. #### Obtain required pipe diameter instantly The application provides a quick and simple way to obtain required pipe diameter when designing natural gas piping systems. Only some basic user input is required (heat output and pipe length) and the result is instantaneous and accurate. #### Wide range of conditions The application allows to perform calculations at a wide range of conditions, as gas lower heating value, temperature, pressure and location altitude can be set individually in order to get accurate results. #### Calculate pressure drop easily After a quick estimate of the recommended standard or nominal pipe size, the user can choose their own diameter, customize pipe material and define fittings and valves to calculate volume flow rate, velocity and pressure drop. The app will notify the user if their chosen diameter is too small. #### Metric and Imperial units Natural Gas Pipe Size app can perform calculations using metric or imperial units. #### Features - Provides required pipe diameter for a pipe section in an instant; - Recommended diameter is displayed as a standard DN or nominal NPS; - Gas working pressure and temperature can be specified; - Wide range of working conditions (heat output, pressure and temperature); - Suitable for individual (home) as well as larger, industrial applications; - Different predefined materials can be selected; - Fittings and valves can be selected from the list; - Displays natural gas volume flow rate and pressure drop for selected pipe section; - Suggests whether the selected pipe diameter might be too small; - Metric and imperial units; - No data connection required to perform calculations; - No ads, no in-app purchases; #### Note The application displays results for a pipe section. Calculations for multiple pipe sections should be performed separately. ------ #### Some reviews Natural Gas Pipe Size: pipe sizing & pressure drop calculation for natural gas installations Very helpful natural gas pipe sizing.... I really like this version for sizing natural gas lines. Imperial units are certainly appreciated. Just be sure to reset the fittings section for each section of pipe you checking. 5 stars by Cod Peace | 09 Feb 2016 ---------- Erdgasleitung: Rohr Dimensionierung und Druckverlust-Berechnung für Erdgasanlagen Erdgasleitung Ich benutze diese App sehr viel und immer mit Erfolg. Habe die Angaben oft nachgerechnet und sie stimmten immer. 5 stars by MOMOG62 | 10 Dec 2013

About

Engineering Forms

Streamline project management, contract handling, and validation processes for engineers. Generate detailed reports directly from your mobile device and sync seamlessly with a web portal for continued work on your laptop. Customize forms or build your own to suit various engineering trades.

Highlights
  • PPM contract management
  • Project and validation tracking
  • In-app report generation
  • Web portal synchronization
  • Customizable form builder
  • User and team management
  • Secure data sharing
Features
Read full description

Manage PPM contracts, projects and validations (now with or without data signal) and produce excellent reports directly in-app, then pick up where you left off on your laptop when you get home via your own personal engineeringforms.com web-portal that syncs with your app. Current Form Categories Available (which you can edit as your own): - Air Conditioning F-Gas - Combustion Gas Safe (Full CP Range) - Mechanical - Electrical - Ventilation - Validation - Water - Health & Safety - Fire Safety - Finance - Personelle - Reports - Assessments - Load Sizing Self employed or part of a team, add users to your account as you grown and provide them access to all your data via granular level roles and capabilities.  Select from our growing range of professional engineering paperwork for all trades, or use our bespoke form building software to build your own using our industry designed templates. Create public and private folders as site log books and share paperwork with engineers and clients via unique links and QR codes. Run full technical projects and keep all the engineering paperwork in one place. Features designed for engineers and office staff alike.  More than just an app. Join at engineeringforms.com

Screenshots

Natural Gas Pipe Size4 screens
Engineering Forms4 screens

Verdict

The call

The clearest difference is review sentiment: Engineering Forms at 100% against Natural Gas Pipe Size's 50%. Engineering Forms also leads on price (Free vs $6.99) and update cadence (every 3 months vs every 9 months). 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

CostPrice · In-app purchases · Ads · Monetization

Engineering Forms is free to download; Natural Gas Pipe Size costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Natural Gas Pipe Size ships an update every 9 months, Engineering Forms every 3 months. The most recent releases landed on September 28, 2026 and October 6, 2026 respectively.

Scorecard5 real differences · 5 level
Natural Gas Pipe Size versus Engineering Forms: the parameters behind the verdict, then further details
ParameterNatural Gas Pipe SizeEngineering Forms
Price$6.99Free — better
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings1 — better—
Update frequencyEvery 9 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS26.012.4 — better
Further details — not scored
Size1 MB19 MB
Age rating4+17+
DeveloperSebastjan ValicITECH PROJECTS LTD

Customer experience

Natural Gas Pipe Size

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Engineering Forms

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Natural Gas Pipe Size

No in-app purchases

None

Engineering Forms

No in-app purchases

Questions

Is Natural Gas Pipe Size free?
Natural Gas Pipe Size costs $6.99, with no in-app purchases.
Is Engineering Forms free?
Engineering Forms is free to download, with no in-app purchases.
Do Natural Gas Pipe Size or Engineering Forms have ads?
Neither Natural Gas Pipe Size nor Engineering Forms shows ads.
Which is updated more often, Natural Gas Pipe Size or Engineering Forms?
Natural Gas Pipe Size ships an update every 9 months, and Engineering Forms every 3 months. Most recently, Natural Gas Pipe Size was updated on September 28, 2026 and Engineering Forms on October 6, 2026.

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