Comparison

Units Converter+ vs Unit Converter For Engineers

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

Head to head
About

Units Converter+

This free utility tool helps you convert between over 400 units across more than 20 categories. It features a simple interface, fast calculations, and automatic updates for currency exchange rates.

Highlights
  • Over 400 units
  • 20+ conversion categories
  • Simple and easy UI
  • Fast calculations
  • Latest currency rates
  • Automatic currency updates
  • Mixed-unit support
Features
Read full description

Use this FREE unit-converting tool to convert across 20+ categories and more than 400 plus units. Features: • More than 20 categories and over 400+ units • FREE • Simple, easy to use UI • Fast calculation • Latest currency rates • Automatic update of currency exchange rate • Mixed-Unit Support Categories: Acceleration, Angle, Area, Bytes, Currency, Current, Energy, Force, Illumination, Inductance, Length, Magnitude, Mass, Power, Pressure, Radiation, Temperature, Time, Torque, Velocity, Volume Examples of Units: Feet, Inches, Rand, Yen, Dollar, Sterling, Pound, Ruppee, Dirham, G-Force, Galileo, Kelvin, Fahrenheit, Celsius, Acres, Hectares, Yards, GB, MB, TB, Electro Magnetic, Calories, Volt, Watt, Newton, Poundal, Nox, Phots, Electro Static, Nano, Micro, Horse Power, Grams, Pounds, Ounces, Tonnes, Stones, Pascal, Curies, Light, Knots, Bushels, Cubic Feet, Gallons, Liters, Pint, Quarts, Tablespoons, Teaspoons Now convert easily and quickly, from imperial to metric and vice versa with your favorite and fastest unit converter app.

About

Unit Converter For Engineers

This app provides a comprehensive unit conversion tool specifically designed for engineers, offering specialized units not found in standard converters. It features offline functionality, fast search, and a clean interface, replacing the need for multiple reference materials.

Highlights
  • Specialized engineering units
  • Offline functionality
  • Fast search and instant conversion
  • Fraction input mode
  • Ad-free interface
  • Scientific notation support
Features
Read full description

Built for engineers who work with units most converters don’t have. No ads. No popups. No distractions. If you’ve ever opened PDFs, charts, or old handbooks to convert Rockwell hardness, wire gauge, HVAC airflow, radiation dose, water hardness, or torque units — this app replaces all of that. Units you usually can’t find in converter apps Material Hardness Rockwell (HRC, HRB, HRA), Vickers, Brinell, Knoop, Mohs, Shore Wire Gauge AWG, SWG, MCM, kcmil, diameter, cross-sectional area HVAC & Airflow CFM, ACH, BTU/h, tons of cooling, kW, airflow per area and per person Water Quality & Chemistry ppm, mg/L as CaCO₃, grains per gallon (US/UK), °dH, °fH, dKH, mmol/L, meq/L Radiation & Radioactivity Becquerel, Curie, Gray, rad Mechanical & Structural Torque, stress, density, pressure, moment of inertia (kg·m² ↔ slug·ft²) Built for real work environments • Works 100% offline in labs, plants, and job sites • Fast search and instant conversion • Scientific notation for precision work • Fraction input mode for field and construction use • Clean, engineer-friendly interface — no ads, ever This app replaces reference charts, calculators, handbooks, and repeated Google searches with one reliable tool in your pocket. Pricing 7-Day Free Trial $9.99/year full access $29.99 lifetime access Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://unitconvertx.github.io/docs/privacy.html

Screenshots

Units Converter+4 screens
Unit Converter For Engineers4 screens

Verdict

The call

The clearest difference is in-app purchases: Units Converter+ at none against Unit Converter For Engineers's 2. Units Converter+ also leads on iOS requirement (10.0 vs 16.2). Unit Converter For Engineers's advantage is review sentiment (100% vs 83%) and update cadence (every 9 days vs monthly). On price, rating, ads and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Unit Converter For Engineers sells 2 in-app purchases, starting at $9.99 per year. Units Converter+ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Units Converter+ against 5.0 for Unit Converter For Engineers. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews are what separate them: 83% of Units Converter+'s written reviews are positive against 100% of Unit Converter For Engineers's.

UpkeepUpdate frequency

Units Converter+ ships an update monthly, Unit Converter For Engineers every 9 days. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

Scorecard6 real differences · 4 level
Units Converter+ versus Unit Converter For Engineers: the parameters behind the verdict, then further details
ParameterUnits Converter+Unit Converter For Engineers
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings13 — better
Update frequencyMonthlyEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS10.0 — better16.2
Further details — not scored
Size5 MB5 MB
Age rating4+17+
DeveloperFusion Software Development Pty LtdAmanuel Abebaw

Customer experience

Units Converter+

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

Unit Converter For Engineers

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Units Converter+

No in-app purchases

2 purchases

Unit Converter For Engineers

Subscriptions1
  • Annual Subscription7 Days trial$9.991 Year
One-time1
  • Lifetime Access$29.99

Questions

Is Units Converter+ free?
Units Converter+ is free to download, with no in-app purchases.
Is Unit Converter For Engineers free?
Unit Converter For Engineers is free to download, with in-app purchases available.
Which has better reviews, Units Converter+ or Unit Converter For Engineers?
Units Converter+ and Unit Converter For Engineers are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Units Converter+ or Unit Converter For Engineers have ads?
Neither Units Converter+ nor Unit Converter For Engineers shows ads.
Which is updated more often, Units Converter+ or Unit Converter For Engineers?
Units Converter+ ships an update monthly, and Unit Converter For Engineers every 9 days. Most recently, Units Converter+ was updated on October 24, 2026 and Unit Converter For Engineers on October 18, 2026.

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