Best apps like ChekDuct

10+ similar apps compared and reviewed

4.7 avg rating
8 free apps
Updated September 2026

ChekDuct 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 ChekDuct

More apps like ChekDuct

4
Trade Calculator - Sheet Metal
Trade Calculator - Sheet Metal
Trade Calculator - Sheet Metal
Construction & HVAC Tool
Free

This tool simplifies complex calculations for construction and HVAC professionals. It handles feet-inches-fractions arithmetic, trigonometric functions, and specialized trade calculations like rafters and duct sizing. Works offline without ads or subscriptions.

Feet-inches-fractions arithmeticAdjustable fraction precisionScientific and trigonometric functions
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(1)
free
5
Air Duct Size Calculator
Air Duct Size Calculator
Air Duct Size Calculator
Pressure Drop & Friction Rate
Free
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6
DuctPro
DuctPro
DuctPro
HVAC Duct Sizing Calculator
Free
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7
HVAC Pro Calculator: NEC + P-T
HVAC Pro Calculator: NEC + P-T
HVAC Pro Calculator: NEC + P-T
Duct ยท Voltage ยท Refrigerant
Free

This app provides essential tools for HVAC technicians and electricians, including BTU load sizing, duct calculations, and refrigerant pressure-temperature charts. It offers a free tier with core functions and an optional Pro upgrade for advanced features like voltage drop calculations and unlimited job saving.

BTU & Cooling Load SizingDuct Sizing CalculationsNEC Voltage Drop & Wire Sizing
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(1)
freemium
8
CaptiveAire Toolbox
CaptiveAire Toolbox
CaptiveAire Toolbox
HVAC ENGINEERING TOOLBOX
Free

This app provides over 40 HVAC and building-systems engineering calculators. It's designed for field use, offering standard industry formulas for cooling, heating, ventilation, electrical sizing, and more. Access detailed formula definitions and reference data.

40+ HVAC engineering calculatorsCooling and heating load calculationsVentilation and airflow tools
๐Ÿ”ง Utilities
(1)
free
9
HVAC Duct Sizer
HVAC Duct Sizer
HVAC Duct Sizer
HVAC duct sizing and more...
$4.99
$5.99 | 17% OFF

This app provides quick and simple HVAC duct sizing analysis. It allows users to calculate duct dimensions based on airflow or existing dimensions, and can also determine a range of duct sizes. Results can be emailed for further analysis.

Duct sizing by airflowDuct sizing by dimensionsRange of duct sizes calculation
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(9)
free with in-app purchases
10
HVAC Load Calculator Manual J
HVAC Load Calculator Manual J
HVAC Load Calculator Manual J
BTU Sizing for Contractors
Free
$1.99 | 100% OFF

This app provides professional HVAC load calculations for contractors, offering three levels of accuracy from quick estimates to detailed Manual J calculations. It's designed for field use with an intuitive interface, offline capabilities, and professional report generation.

Multiple accuracy levels (Simple, Moderate, Pro)Offline-ready calculationsProfessional PDF report generation
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free with in-app purchases