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Best Superheat Subcool Apps

93+ iOS apps curated and reviewed

3.7 avg rating
19 free apps
Updated September 2026

From beginner-friendly picks to power-user tools, our superheat subcool list covers 93+ iPhone apps updated through September 2026. Compare ratings, prices, and screenshots in one place.

Compare top Superheat Subcool Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1HVACR Check & ChargeHVACR Check & ChargeFree4.8★ (17K)NoNoSep 2026
2SuperCool Slide Rule HVACSuperCool Slide Rule HVACFree4.2★ (185)NoNoAug 2026
3P-T CalculatorP-T CalculatorFree4.8★ (52)NoNoAug 2026
4SuperHeatCalcSuperHeatCalcFree3.8★ (6)NoNoMay 2026
5Ref ToolsRef ToolsFree3.9★ (52)NoNoSep 2026
6Fieldpiece Job LinkFieldpiece Job LinkFree2.4★ (503)NoNoSep 2026
7Superheat & Subcool CalcSuperheat & Subcool Calc$0.993.0★ (2)NoYesSep 2026
8HVAC AI: Tools & SimulatorHVAC AI: Tools & SimulatorFree—NoYesAug 2026

Top Picks for Superheat Subcool

HVACR Check & Charge#1

HVACR Check & Charge by Copeland LP

PT Charts Superheat Subcooling
Editor's Choice
🔍 Reference
4.8😊(17K ratings)
Free
HVACR Check & Charge screenshot 1
HVACR Check & Charge screenshot 2
HVACR Check & Charge screenshot 3
HVACR Check & Charge screenshot 4
HVACR Check & Charge screenshot 5
HVACR Check & Charge screenshot 6

This app provides an instant mobile refrigerant charge calculator for HVACR applications. It supports various refrigerants and allows users to calculate the correct system charge based on superheat, subcooling, or airflow, along with environmental conditions.

What We Love

  • 🚀 Convenient
  • 🚀 Great program
  • 🚀 Reliable app
  • 🚀 Easy and quick charging reference
  • 🚀 Helps take away doubt when making a case
  • 🚀 Quickly analyzes conditions and factors
  • 🚀 Awesome Freon charging app
  • 🚀 Revolutionary app
  • 🚀 Very handy and easy to use
  • 🚀 Best helper ever
  • 🚀 Makes charging systems super easy
  • 🚀 Very good for superheat calculation
  • 🚀 Great reference
  • 🚀 Most accurate charge for R410A and R22
  • 🚀 Easy to use

Room to Improve

  • 🐛 Pressure settings not helpful
  • 🔒 Concerning privacy policy
  • 🐛 Restricted temperature range
  • 🐛 Crashes and bugs
  • 🐛 Doesn't work on Apple Watch
SuperCool Slide Rule HVAC#2

SuperCool Slide Rule HVAC by Designstein, llc

Strong Contender
🔧 Utilities
4.2😐(185 ratings)
Free
SuperCool Slide Rule HVAC screenshot 1
SuperCool Slide Rule HVAC screenshot 2
SuperCool Slide Rule HVAC screenshot 3
SuperCool Slide Rule HVAC screenshot 4
SuperCool Slide Rule HVAC screenshot 5

This app offers a comprehensive suite of tools for HVAC technicians. It provides interactive guides, step-by-step repair instructions, and calculators for various HVAC calculations including superheat, subcooling, and duct sizing.

What We Love

  • 👍 Great HVAC tool
  • 👍 Informative slide rule
  • 👍 Helpful for new techs
  • 👍 Quick and simple
  • 👍 Easy to use
  • 👍 All in one app
  • 👍 Invaluable in the field
  • 👍 Pocket reference
  • 👍 Good for duct sizing
  • 👍 Helps customers understand issues

Room to Improve

  • 🐛 Trial period issues
  • 🐛 App expires frequently
  • 🐛 Requires re-download
  • 🐛 Not worth the trouble
  • 🐛 App messed up
  • 🐛 Scrambled charts
  • 🐛 Junk app
  • 🐛 Paid version still has issues
  • 🐛 Free not free
  • 🐛 No cost upfront
  • 🐛 No way to purchase
  • 🐛 Closes itself
  • 🐛 No portrait mode
  • 🐛 No friction rate selection
  • 🐛 No quick duct sizing
  • 🐛 Inaccurate altitude
  • 🐛 Room calc issues

More Superheat Subcool apps to explore

FAQ about Superheat Subcool

What are the best superheat subcool apps for iPhone?
HVACR Check & Charge tops our superheat subcool apps ranking as of September 2026, with a 4.8-star average from 17K App Store ratings, and it's free to download.
Yes — 19 of the top superheat subcool apps we rank are free to download, including HVACR Check & Charge and SuperCool Slide Rule HVAC.
HVACR Check & Charge has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 93+ superheat subcool apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app functions as an instant mobile refrigerant charge calculator specifically designed for HVACR applications. It helps contractors determine the correct system refrigerant charge for various air conditioning and refrigeration systems by considering operating conditions and environmental loads.
Key features include calculators for superheat (non-TXV), subcooling (TXV), and airflow. It also provides PT Charts (Pressure/Temperature) and can find a superheat target using psychometric calculations. The app supports a wide range of refrigerants and offers both Imperial and Metric units.