Ring Sizer - Size Measure App
LightApps OU
Fingers and determine
Fingers to determine without needing a . Input measurements manually or use a ruler. Save and view history. Convert sizes between international standards.
Apps Like HVACalc for iPhone and iPad
HVACalc screenshots
Ranked alternatives
Showing 81–100 of 1,000 ranked alternatives.
▸ Calculator +
CAT VIET SOFTWARE DEVELOPMENT & MEDIA JSC
Calculate, convert, and solve equations
Perform complex calculations using 12 built-in calculators including scientific, financial, and unit conversion tools. Input formulas with three modes: standard, string, and RPN.
CDL Test & Field Tools 2026
Sangeetha Bhatta
Practice CDL tests and track your score
Study for the Commercial Driver's License with practice questions and multi-choice answers. Take simulated tests with randomized questions. Receive detailed scores and email them. Save results automatically.
Conduit Bender Elite - Calc
Cyberprodigy LLC
Calculate bends, mark measurements, track progress
Calculate bends with step-by-step guidance for offset and rolling offset types. Input measurements to determine bend angles and lengths. Include diagrams for visual reference. Export bend data for use in installations.
Crochet & Knitting - Loopify
John Hetfield
Knit patterns, track progress, and share projects
Manage and projects with AI-generated patterns and step-by-step guidance. Track progress, store patterns, and access tutorials. Convert PDFs to digital formats and organize yarn inventory. Share projects and receive feedback from the community.
HVAC Duct Sizer
Carmel Software Corporation
HVAC duct sizing analysis application tool
The app sizes HVAC duct runs or a range of duct sizes using the constant friction method. Users can input airflow, dimensions, or a range of sizes to calculate results in English or Metric units.
The Electrician Tools
1BIGRIG Ltd
Access calculators, safety guides, and checklists
Provides calculators for circuit design and load calculations. Includes safety references for UK electrical standards and BS 7671. Features checklists for installation and inspection tasks.
FlightReady E6B
Aeroapps Technology, LLC
Calculate flight data with precision
Calculate groundspeed, true heading, compass heading, leg time, distance, fuel required, fuel flow, and endurance for flight planning. Convert airspeed, altitude, and temperature.
Engineering Cookbook
Loren Cook Company
Mechanical designers reference guide for information.
The app offers a reference guide for mechanical designers. It provides access to information on fan basics, system design, duct design, motors and drives, heating and refrigeration, and formulas.
Ohm's Law
Creature Code Mobile, LLC
Calculate voltage, current, and resistance
Calculate electrical values using . Input voltage, current, or resistance to find missing variables. Supports calculations for series and parallel circuits. Includes unit conversion for volts, amps, and ohms.
Ref Tools
Danfoss A/S
Access , guides, and support on
Access HVACR for job support. Calculate refrigerant pressures and charge weights. View system diagrams and service guides. Track equipment specifications and maintenance schedules. Share resources and access technical support.
Electrical Engineering Pack
V PUGAZHENTHI
Calculate values instantly
Perform calculations including resistor color code analysis, transformer voltage and current computations, and voltage, current, resistance, and power determinations. Include upgraded voltage drop calculations compliant with NEC/IEEE standards.
Honeywell Air Comfort
JMATEK (HK) LIMITED
Monitor humidity levels remotely
Monitor and manage humidity levels remotely. Adjust settings, view real-time data, and receive alerts. Control the system from any location using the .
Psychrometrics
Wassim Murr
Calculate air properties and track moisture levels
Calculate air properties like temperature, humidity, and dew point. Determine enthalpy and moisture content. Convert between psychrometric units. Visualize air state diagrams. Export data for engineering analysis.
IET Wiring Regulations 18th Ed
Eknath Kadam
Test, learn, and reference standards
Access and review over 580 test questions with answers and detailed explanations. Study the latest IET 18th Edition with 2022 Amendment (BS 7671:2018+A2:2022). Track progress and revise key topics related to electrical standards.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.