Comparison

Unit Converter for Physics vs Ductulator

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Unit Converter for Physics

Features
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Unit Converter for Physics: Your Complete Physics Unit Conversion Tool Transform complex physics calculations into simple conversions with Unit Converter for Physics, the ultimate unit conversion application designed specifically for physics students, educators, and professionals. Comprehensive Unit Coverage Unit Converter for Physics offers extensive conversion capabilities across all essential physics quantities: - Length: Convert between meters, kilometers, centimeters, millimeters, micrometers, nanometers, miles, yards, feet, inches, nautical miles - Mass: Easily switch between kilograms, grams, milligrams, metric tons, pounds, ounces, slugs, and specialized maritime units like gross tons. - Time: Convert seconds, minutes, hours, days, weeks, months, years, milliseconds, and microseconds. - Volume: Transform between cubic meters, liters, milliliters, cubic feet, cubic inches, gallons, quarts, pints, fluid ounces, cubic centimeters, and specialized maritime units like gross tonnage. - Area: Convert square meters, square kilometers, hectares, acres, square miles, square feet, square inches, and square yards. - Temperature: Switch between Kelvin, Celsius, and Fahrenheit. - Speed: Convert meters per second, kilometers per hour, miles per hour, feet per second, and nautical units like knots. - Acceleration: Transform between meters per second squared, feet per second squared, standard gravity (g), and Gal units. - Density: Convert kilograms per cubic meter, grams per cubic centimeter, pounds per cubic foot, and more. - Pressure: Switch between pascal, bar, atmosphere, torr, pounds per square inch, and millimeters of mercury. - Force: Convert between newtons, kilonewtons, pound-force, and dyne. - Energy: Transform joules, kilojoules, calories, kilocalories, electron volts, BTUs, foot-pounds, and kilowatt-hours. - Power: Convert watts, kilowatts, megawatts, horsepower, BTU per hour, and foot-pounds per second. - Frequency: Switch between hertz, kilohertz, megahertz, gigahertz, and revolutions per minute. - Angle: Convert degrees, radians, gradians, minutes of arc, and seconds of arc. Educational Features Conversion Factor Display: Understand the mathematical relationship between units with clearly displayed conversion factors, enhancing your learning experience. Complete SI and FPS Systems: Master both International System of Units (SI) and Foot-Pound-Second (FPS) systems with comprehensive conversion options. Maritime Specialized Units: Navigate specialized maritime measurements including nautical miles, knots, and gross tonnage. User-Friendly Design Intuitive interface requiring minimal input to get accurate results Clean, distraction-free layout perfect for academic use convert units anytime, anywhere Unit Converter for Physics is the perfect companion for physics homework, lab reports, research papers, and professional calculations. Download today and transform the way you handle physics unit conversions!

About

Ductulator

Features
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Stop guessing duct sizes. Ductulator turns your airflow into the exact round or rectangular duct size you need โ€” plus the friction rate, right from the job site. Built for HVAC contractors and DIY installs alike: โ€ข Round and rectangular sizing from CFM and target velocity, fully free โ€ข Reverse mode โ€” already have a duct size on hand? See what airflow it can carry (Pro) โ€ข Branch calculator โ€” size a trunk and every branch run at once, with a warning if they don't add up (Pro) โ€ข Every duct material โ€” Galvanized, Flex Duct, PVC, Fiberboard (Pro) โ€ข Save sizings by job and share a polished PDF with your crew (Pro) No account, no ads, no guesswork โ€” just the numbers you need before you cut metal. --- Privacy Policy: https://fosterapps.com/duct/privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Unit Converter for Physics4 screens
Ductulator4 screens

Verdict

The call

The clearest difference is iOS requirement: Ductulator at 15.1 against Unit Converter for Physics's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Unit Converter for Physics sells 1 one-off in-app purchase and Ductulator sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Unit Converter for Physics ships an update every 10 days, Ductulator every 8 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard1 real difference ยท 5 level
Unit Converter for Physics versus Ductulator: the parameters behind the verdict, then further details
ParameterUnit Converter for PhysicsDuctulator
PriceFreeFree
Update frequencyEvery 10 daysEvery 8 days โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS18.615.1 โ€” better
Further details โ€” not scored
Size2 MB29 MB
Age rating4+4+
DeveloperJatuphol JaturapatFoster Apps LLC

In-app purchases

1 purchases

Unit Converter for Physics

One-time1
  • Unlock Solution$0.99
2 purchases

Ductulator

Subscriptions2
  • Pro Weekly3 Days trial$3.997 Days
  • Pro Yearly$19.991 Year

Questions

Is Unit Converter for Physics free?
Unit Converter for Physics is free to download, with in-app purchases available.
Is Ductulator free?
Ductulator is free to download, with in-app purchases available.
Do Unit Converter for Physics or Ductulator have ads?
Neither Unit Converter for Physics nor Ductulator shows ads.
Which is updated more often, Unit Converter for Physics or Ductulator?
Unit Converter for Physics ships an update every 10 days, and Ductulator every 8 days. Most recently, Unit Converter for Physics was updated on November 5, 2026 and Ductulator on October 31, 2026.

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