Best RefCalc alternatives: apps like RefCalc: Refrigerant PT Chart

10+ similar apps compared and reviewed

3.6 avg rating
10 free apps
Updated November 2026

RefCalc is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to RefCalc

HVAC: Nameplate Scanner#1

HVAC: Nameplate Scanner by APPSPHERE LIMITED

Equipment Logs & P-T Charts
Editor's Choice
🔧 Utilities
4.6(9 ratings)
FreeIn-App Purchases
HVAC: Nameplate Scanner screenshot 1
HVAC: Nameplate Scanner screenshot 2
HVAC: Nameplate Scanner screenshot 3

Scan HVAC equipment nameplates to capture model and serial numbers. Organize service records and access refrigerant pressure-temperature charts. Find equipment manuals and streamline your field service workflow.

Refrigerant Charge Calculator#2

Refrigerant Charge Calculator by Mikhail Nikitin

HVACR Check PT Chart Superheat
Strong Contender
🔧 Utilities
4.7(26 ratings)
FreeIn-App Purchases
Refrigerant Charge Calculator screenshot 1
Refrigerant Charge Calculator screenshot 2
Refrigerant Charge Calculator screenshot 3
Refrigerant Charge Calculator screenshot 4
Refrigerant Charge Calculator screenshot 5
Refrigerant Charge Calculator screenshot 6

This tool helps HVAC and refrigeration technicians quickly determine the correct refrigerant charge for various systems. It provides instant verdicts like 'Add,' 'Hold,' or 'Remove' based on superheat or subcooling measurements, supporting numerous refrigerants and unit conversions. The app functions offline and allows for saving job details and generating PDF reports.

Random Everything#3

Random Everything by Sergio Musoles Tornador

Let everything be random!
Worth Considering
🔧 Utilities
0.0(0 ratings)
FreeIn-App Purchases
Random Everything screenshot 1
Random Everything screenshot 2
Random Everything screenshot 3
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Random Everything screenshot 5
Random Everything screenshot 6

This utility app offers a variety of random generation tools. It can create numbers, assign teams, shuffle lists, pick winners, and simulate dice rolls, making it useful for games and decision-making.

More apps like RefCalc

4
Random name & list generator
Random name & list generator
Random name & list generator
Spin the wheel
Free

Easily create randomized teams, order groups, or pick random items from various categories. This utility app offers a wheel spinner, dice roller, and a yes/no answer generator for quick decision-making and random selections.

Randomized team creationRandom name selectionWheel spinner
🔧 Utilities
(16)
free with in-app purchases
5
摩友-多功能用车玩车好伙伴
摩友-多功能用车玩车好伙伴
摩友-多功能用车玩车好伙伴
by Qingdao ZhongRuiYun Digit Technology Co., Ltd.
Free
🔧 Utilities
(0)
6
Sign Documents: Fill & Sign
Sign Documents: Fill & Sign
Sign Documents: Fill & Sign
PDF Signer & Signature Maker
Free

Easily add handwritten signatures to PDFs and images directly on your iPhone. Import documents from various sources, draw and place your signature anywhere, and manage multi-page files. Enjoy a privacy-first experience with on-device processing.

Add handwritten signatures to PDFs and imagesImport from Files, Photos, or other appsDraw and place signature anywhere
🔧 Utilities
(12)
subscription
7
Simubus
Simubus
Simubus
Electrical Wiring Simulator
Free

This app provides a safe and practical virtual environment for learning and practicing electrical wiring and circuit design. It offers realistic simulations of industrial and residential circuits, a comprehensive component library, and diagnostic tools to help users master electrical principles and prepare for exams.

Industrial & Home Circuit SimulationSafe Low-Voltage ExercisesStep-by-Step Wiring Guidance
🔧 Utilities
(1)
freemium
8
Amana PTAC
Amana PTAC
Amana PTAC
by Goodman Manufacturing L.P.
Free

Easily access information for your PTAC units. Browse service guides, check warranties, spec new units, and manage property room lists. Connect directly to unit control boards via Bluetooth for enhanced functionality.

Browse service guidesLookup unit warrantiesSpec new PTAC units
🔧 Utilities
(17)
free
9
CORE Service
CORE Service
CORE Service
by Lennox Industries
Free

This app provides a wireless interface for commercial HVAC technicians to control and service specific Lennox rooftop units. It offers guided setup, enhanced testing, and parameter configuration to streamline the service process.

Wireless mobile service appGuided setup with progress indicatorsEnhanced test functionality
🔧 Utilities
(19)
free
10
Fuel Record: Gas Cost Tracker
Fuel Record: Gas Cost Tracker
Fuel Record: Gas Cost Tracker
Simple fuel & mileage tracking
Free

Effortlessly track your car's fuel consumption, mileage, and costs with this straightforward logging app. Visualize your spending and efficiency with clear charts and summaries, designed for users who prefer simplicity and ease of use.

Dead simple loggingClear, easy-to-read chartsYearly, quarterly, monthly summaries
🔧 Utilities
(175)
free with in-app purchases