Apps Like Ductulator - Duct Sizing for iPhone and iPad
Size ducts by friction rate or velocity
Calculate sizes for rectangular and circular ducts by inputting maximum friction rate or velocity. Switch between calculation methods by tapping values. Convert between I-P and S-I units using a toggle switch. Export results for reference.
Ductulator - Duct Sizing screenshots
Ranked alternatives
Showing 161–180 of 1,000 ranked alternatives.



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Capture leads and manage deals efficiently
Capture leads through landing pages, surveys, forms, and calendars. Automatically message leads via SMS, email, calls, and social platforms in a single thread. Track deal progress with predictive analytics and funnel builder tools.

Pipe Flow Liquid Pipe Diameter
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Calculate for rate and pressure loss
Calculate minimum internal based on rate and maximum pressure loss. Input elevation changes and select valves and fittings. Display Reynolds number and friction factor. Export results in various formats.

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Calculate BTU, convert units, compare systems, estimate
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Order solar surveys and manage pipeline
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Mila's Volume Converter
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Convert units of instantly
Convert between common measurements such as milliliters, liters, cups, pints, quarts, and gallons. Input a value and select units to switch between them. Save frequently used conversions for quick access.

Scientific Calculator Elite
Cyberprodigy LLC
Calculate with fractions and units
™ allows users to perform fraction calculations and convert between decimals and fractions. It supports degree, minute, and second conversions. Users can handle unit conversions and calculations with dimensional units.

Fan Spec Performance
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Evaluate fan specs and calculate duct
Evaluate fan specifications based on flow rate, static pressure, shaft power, and efficiency. Calculate average duct velocity, pressure loss, and leakage rates. Create and save multiple fan-duct system applications for analysis and review.

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Calculate trajectories and adjust for wind
Calculate bullet trajectories using Point Mass, Siacci, and Pejsa methods. Input environmental factors like wind and elevation. Adjust for bullet drop and muzzle velocity. Export data to CSV. Sync with external devices for real-time adjustments.

Converter of Units
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Convert with precision and speed
Convert across categories with a modern interface. Navigate using sidebar and tab bar. Create multiple windows and drag items to new screens. Share data and access context menus. Includes a quick start guide and light/dark modes.

Cleft - For Verbal Thinkers
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Record thoughts, search, and organize notes
Record voice notes without typing using live transcription. Find notes instantly with spotlight search. Sync across devices when connected. Use Apple Watch for hands-free recording. Store notes offline and access them anytime.

Element Ballistics
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Create ballistic profiles and calibrate data
Create ballistic profiles for rifles and select bullets with verified drag profiles. Calibrate BC, muzzle velocity, and drag functions like G1 or G7. View data in graphs and tables, export or import profiles.





One Life - Earn Screen Time
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Lock apps until tasks are done
Set daily phone- goals by choosing 3 small tasks. Convert tasks into redeemable minutes. Select apps to lock using Apple . Complete tasks to minutes and unlock access. Track progress and manage effectively.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.