Comparison

HVAC Pipe Sizer vs Angle Measure, Digital Ruler

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

Head to head
About

HVAC Pipe Sizer

Quickly size steam pipe systems by inputting piping and steam properties. Includes a steam table calculator and HVAC equipment locator. Supports English and metric units.

Highlights
  • Steam pipe sizing
  • Steam table calculator
  • HVAC Equipment Locator
  • English/metric unit selection
  • Pipe fitting database
  • Slider controls for input
Features
Read full description

The "HVAC Pipe Sizer - Steam" application allows you to quickly size a simple steam pipe system by inputting a number of piping and steam properties. This app is a universal app that works on both the iPhone and iPad and adjusts its screen size accordingly. It also includes a bonus steam table calculator that allows you to specify 2 parameters for either saturated or superheated steam and display the remaining steam properties. In the pipe sizing module, you can specify the total steam flow in lbs/hr (or kgs/hr), the initial steam pressure (psia or psig) and one of either pressure loss (psi/100ft), pipe internal diameter (inches) or steam velocity (ft/s) parameters. The results include both the exact and nominal pipe diameters and the calculated velocity and total pressure loss. If you are analyzing an existing steam pipe system, there is an option to input the existing pipe internal diameter, initial steam pressure and one of either pressure loss or steam velocity parameters to derive the calculated steam flow and other remaining properties. You can specify additional parameters such as whether the steam is saturated or superheated (with accompanying temperature), the pipe material type, the total length of pipe, quantities for up to 11 different types of pipe fittings, and much more. You can also choose to display values in either english or metric units. The bonus steam table module is one-of-a-kind. It allows you to easily view results by selecting a variety of input parameters and easily altering these inputs using the slider control. This is perfect for students who often rely upon the more static printed steam tables in engineering text. This application includes built-in pipe fitting equivalent length and nominal pipe sizing tables for a wide variety of pipe material types and diameters. This application uses slider controls that allow you to quickly increment or decrement the input values and immediately observe the calculated results. You can also manually input exact values. This app now includes the HVAC Equipment Locator. Click here for details: http://bit.ly/1yTq539 This application was designed by Carmel Software Corporation, a leader in HVAC design software since 1995. In fact, Autodesk (the makers of AutoCAD) acquired our load calculation software and incorporated it into their leading 3D modeling software called Revit. We also offer the following additional applications for the iPhone/iPad: 1. HVAC Duct Sizer 2. HVAC Pipe Sizer – Gas Low Pressure 3. HVAC Pipe Sizer - Gas High Pressure 4. HVAC Pipe Sizer – Liquid 5. HVAC Pipe Sizer – Steam 6. Steam Tables 7. Psychrometric Plus 8. Psychrometric LT 9. HVAC Pipe Sizer Plus 10. HVAC Pipe Sizer Gas Plus 11. HVAC Toolkit 12. HVAC Toolkit Ultimate 13. HVAC Residential Load Calcs 14. HVAC Load Plus 15. HVAC Equipment Locator 16. ASHRAE Duct Fitting Database 17. ASHRAE 62.1 Ventilation Load Calcs 18. HVAC Psych HD 19. HVAC ResLoad-J 20. HVAC Residential Load Calcs HD

About

Angle Measure, Digital Ruler

Transform your device into a versatile measuring tool. Accurately find and measure angles, levels, and distances with a digital protractor, ruler, and bubble level. Features include a flashlight and camera integration for precise work in any condition.

Highlights
  • Digital protractor and angle finder
  • Bubble level and 360° clinometer
  • Measuring tape and ruler functionality
  • Flashlight and camera integration
  • User-friendly interface
Features
Read full description

Convert your device into a versatile angle finder ruler app for quick and accurate angle and level measurements. Find and measure degrees and angles with ease, whether for high or low-angle measurements. Designed with a powerful suite of features, this ruler app ensures you always have the right tool at your fingertips. Features 1. User-Friendly Interface: Designed with ease of use in mind, ruler app provides a seamless experience for quick and efficient measuring. 2. Protractor & Angle Finder: Easily measure angles with this digital protractor and angle meter. 3. Bubble Level & 360o Clinometer: Achieve perfect alignment with built-in clinometer level and bubble level meter. This feature is ideal for any leveling task to ensure surfaces are perfectly level. 4. Measuring Tape & Ruler App: Replace your physical measuring tape with our digital measuring tool. 5. Flashlight & Camera Integration: Illuminate your work area and capture precise measurements with built-in flashlight and camera. Ideal for working in low-light conditions, ensuring you never miss a detail. Why Choose Angle Measure Digital Rule? The Angle Measure & Ruler app combines the functionality of a traditional protractor, clinometer, and bubble level meter with the convenience of modern technology. From simple tasks to complex projects, this digital ruler integrates essential measuring tools in one convenient platform. Who can benefit from this? - DIY Enthusiasts - Carpenters - Construction Professionals - Engineers - Architects - Hobbyists Subscription Plan Get premium plan to enjoy ad-free angle measurements quickly and easily. Your payment will be charged to your iTunes Account at confirmation of purchase. Secondly, your subscription will renew automatically, but you can turn off auto-renewal by accessing your Account Settings 24 hours before the end of the current period. Get Started Now! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Contact us: zsmapps2024@gmail.com Download now and experience the efficiency of a digital measuring tape, angle finder, and more, all in your pocket!

Screenshots

HVAC Pipe Sizer4 screens
Angle Measure, Digital Ruler3 screens

Verdict

The call

The clearest difference is price: Angle Measure, Digital Ruler at Free against HVAC Pipe Sizer's $6.99. Angle Measure, Digital Ruler also leads on review sentiment (100% vs 67%) and update cadence (every 6 days 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

Angle Measure, Digital Ruler is free to download; HVAC Pipe Sizer costs $6.99 up front. HVAC Pipe Sizer sells 1 one-off in-app purchase and Angle Measure, Digital Ruler sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HVAC Pipe Sizer ships an update every 9 months, Angle Measure, Digital Ruler every 6 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
HVAC Pipe Sizer versus Angle Measure, Digital Ruler: the parameters behind the verdict, then further details
ParameterHVAC Pipe SizerAngle Measure, Digital Ruler
Price$6.99Free — better
Rating—5.0 (2 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings—2 — better
Update frequencyEvery 9 monthsEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.014.0 — better
Further details — not scored
Size1 MB8 MB
Age rating4+4+
DeveloperCarmel Software CorporationZain Saeed Mughal

Customer experience

HVAC Pipe Sizer

Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Angle Measure, Digital Ruler

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews17 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

HVAC Pipe Sizer

One-time1
  • HVAC Equipment Locator$9.99
1 purchases

Angle Measure, Digital Ruler

One-time1
  • Remove Ads$4.99

Questions

Is HVAC Pipe Sizer free?
HVAC Pipe Sizer costs $6.99, and also offers in-app purchases.
Is Angle Measure, Digital Ruler free?
Angle Measure, Digital Ruler is free to download, with in-app purchases available.
Do HVAC Pipe Sizer or Angle Measure, Digital Ruler have ads?
Neither HVAC Pipe Sizer nor Angle Measure, Digital Ruler shows ads.
Which is updated more often, HVAC Pipe Sizer or Angle Measure, Digital Ruler?
HVAC Pipe Sizer ships an update every 9 months, and Angle Measure, Digital Ruler every 6 days. Most recently, HVAC Pipe Sizer was updated on November 1, 2026 and Angle Measure, Digital Ruler on October 31, 2026.

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