Apps Like Ductulate HD for iPhone and iPad
Calculate air flow and duct sizes
Calculates air volume, pressure loss, velocity, and duct size for rectangular or round ducts. Supports both imperial and metric units. Users input values to determine required dimensions and system performance.
Ductulate HD screenshots
Ranked alternatives
Showing 61–80 of 1,000 ranked alternatives.


BulletDrop+
Mark Descalzo
Calculate bullet trajectory and wind drift
External ballistics calculator allows users to input bullet weight, ballistic coefficient, muzzle velocity, sight height, zero range, wind speed, and angle. Calculates velocity, energy, flight path, and wind drift.

Physics Toolkit
Electronial
Calculate formulas and values
Perform calculations using built-in formulas and calculators for displacement, acceleration, Newton's second law, gravitational acceleration, Hooke's law, momentum, work, density, kinetic energy, potential energy, elastic energy, electric power,


WinFab - Sheet Metal Ductulator
pasquale dipaola
Calculate duct sizes and dimensions
Calculate duct sizes based on airflow requirements and space constraints. Input dimensions and airflow rates. Generate reports with material estimates and installation guidelines. Export data for sharing or record-keeping.

TEC Gauge
The Energy Conservatory
Capture readings and share them via email
Control and monitor DG-1000, DG-700, or DG-8 pressure gauges wirelessly via Bluetooth or WiFi. Capture and store readings. Share readings via email or cloud apps like Google Drive and Dropbox. Display readings in various formats.

Civil Engineering Calculators
V PUGAZHENTHI
Calculate and convert units
& Converters provides tools for structural analysis, unit conversion, and formula-based calculations. Users can compute shear capacity, slenderness ratio, compressive stress, bending stress, and safety factors.

Unit Converter: Mila's Tools
Scott DeSapio
Convert units across 16 categories
Convert units across 16 categories with instant results. Switch between metric, imperial, and other systems. Calculate conversions for length, weight, temperature, and more. Store frequently used values for quick access.



GPS Status ∞ Coordinates
Chen-Yu Wei
View real-time GPS location
Monitor real-time GPS accuracy and switch between latitude/longitude and DMS formats. Copy with one tap. Toggle between metric, imperial, and nautical units. View location data quickly with a simple, reliable interface.

HVAC Toolkit
Carmel Software Corporation
Track equipment and PT charts
Provides access to multiple specialized tools for professionals. Users can locate equipment, read PT charts, calculate refrigerant charges, size ducts, estimate quick loads, and analyze psychrometric data.

Construction Calculator Master
Uncaught Exception Inc.
Calculate and visualize projects
Perform calculations with math functions and trigonometry. Switch between units like feet, inches, yards, and metric. Visualize measurements and fractions. Track projects with customizable templates. Export results in various formats.

Hydraulics and Waterworks lite
V PUGAZHENTHI
Calculate and convert parameters
Calculate hydraulic parameters such as capillary rise, viscosity, and hydrostatic pressure. Convert between metric and imperial units. Determine velocity head, specific energy head, and total energy. Assess head loss using the Bernoulli equation.

Astropad Studio Drawing Tablet
Astro HQ LLC
Create, customize, and share digital art
Create and edit digital artwork with wireless capabilities. Connect via Wi-Fi or USB. Use as a secondary display. Access gesture shortcuts for quick actions. Customize workspace layout and settings.


CE HVAC Pro+
Watsco, Inc.
Check warranty, order status, and tech specs
Check warranty details, inventory availability, order status, and technical manuals for products. Access tech specifications and order history. Receive support and track business growth tools.

Conversion Calculator Units
RV AppStudios LLC
Convert across 12 categories
Convert across 12 categories and 140+ . Tap to select , swipe to switch values. Adjust options easily. View results instantly without complex steps.

OneCalc: All-in-one Calculator
tasser gyati
Calculate, convert, and solve equations
Offers standard and advanced math functions including percent, negative sign, memory, brackets, and history. It includes trigonometry, roots, exponents, and logarithms.

Simple Unit Converter - Pro Measurement and Conversion Calculator for Multi Units
Jian Yih Lee
Convert across length, area, mass, temperature,
Convert across categories including length, area, mass, temperature, volume, density, and flow rates. Switch between like km to miles or Celsius to Fahrenheit. Calculate torque and viscosity values. Export results and share conversions directly.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.