Comparison

Mila's Temperature Converter vs Unit Converter Engineering Pro

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

Head to head
About

Mila's Temperature Converter

Effortlessly convert between five major temperature scales, including Celsius, Fahrenheit, Kelvin, Rankine, and Réaumur. Customize your view, save favorite scales, and enjoy precise formatting for everyday use or scientific calculations.

Highlights
  • Converts 5 major temperature scales
  • Save and reorder favorite scales
  • Automatic or manual decimal precision
  • Dark mode and custom themes
  • Comfortable or compact view styles
  • Quick-copy values with a swipe
Features
Read full description

From the developer of the award winning Mila's Tools unit converter, comes the standalone Mila's Temperature Converter - 5 scales. From the kitchen to the lab. One effortless converter. Mila's Temperature Converter makes it easy to convert between every major temperature scale in use today. Whether you're converting Celsius to Fahrenheit for a recipe, checking Kelvin for a physics problem, or working in Rankine for engineering calculations, this app gives you every answer instantly. 5 SUPPORTED SCALES - Celsius (°C) - Fahrenheit (°F) - Kelvin (K) - Rankine (°R) - Réaumur (°Re) WHY FIVE SCALES? Celsius and Fahrenheit cover everyday life — weather, cooking, and body temperature. Kelvin is the SI base unit used in physics, chemistry, and astronomy. Rankine serves the same purpose for engineers who work in the Fahrenheit system. And Réaumur, once the standard across Europe, still appears in cheesemaking, food science, and historical texts. FAVORITES Star the scales you use most. Drag and drop to reorder. Your favorites appear right at the top, every time. BUILT FOR PRECISION Choose automatic smart formatting or set manual decimal precision from 0 to 10 places. Locale-aware number formatting respects your region's separators and conventions. DESIGNED FOR YOU - Dark mode with rich color themes - Comfortable or compact view styles - Show or hide any scale you don't need - Quick-copy any value with a swipe - Custom numeric keyboard (iOS) - Available on iPhone, iPad, and Mac Whether you're a student, chef, scientist, or just settling a debate about the weather — this is the temperature converter for you. - - - - - If you have any questions, please don't hesitate to reach out at scott@scottdesapio.com. - - - - - Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Unit Converter Engineering Pro

This app provides precise unit conversions for engineers, scientists, and students. It supports over 100 units across 35 categories, including scientific notation and 9-digit decimal precision. The tool works offline and adheres to SI, NIST, and ISO standards.

Highlights
  • Over 100 units in 35+ categories
  • Scientific notation support
  • 9-digit decimal precision
  • SI, NIST, ISO compliant
  • Offline functionality
  • Specialized units included
Features
Read full description

Unit Converter Engineering Pro – The ultimate tool for engineers, scientists, and students who need precise and fast unit conversions. Easily convert between over 100 units across more than 35 categories commonly used in engineering, physics, chemistry, and mathematics. Perfect for professionals, researchers, and students who want a reliable, professional-grade converter at their fingertips. Included categories: • Acceleration • Angle • Area • Specific Heat • Electric Charge • Heat Transfer Coefficient • Length • Concentration • Thermal Conductivity • Physical Constants • Density • Diffusivity • Energy • Heat Flux • Force • Illuminance • Luminance • Mass • Moment / Torque • Power • ppm / ppb / ppt / % • SI Prefix • Pressure • Radiation – Activity • Radiation – Dose • Radiation – Exposure • Radiation – Equivalent Dose • Time • Volume • Velocity / Speed • Viscosity • Volume Flow Rate • Voltage / Electric Potential • Frequency • Temperature Key Features: • Supports scientific notation for extreme precision • Fully compliant with SI, NIST, and ISO standards • 9-digit decimal precision for engineering-grade accuracy • Fast and intuitive interface • Works offline – no internet required • Includes rare and specialized units often missing from other converters • Made by engineers, for engineers Simplify your work, save time, and ensure accuracy with Unit Converter Engineering Pro - your professional unit conversion companion. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Mila's Temperature Converter4 screens
Unit Converter Engineering Pro3 screens

Verdict

The call

The clearest difference is rating: Unit Converter Engineering Pro at 5.0 against Mila's Temperature Converter's 4.3. Unit Converter Engineering Pro also leads on ads (none vs shown) and update cadence (weekly vs every 3 weeks). On price, ratings volume, in-app purchases and monetization model 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. Mila's Temperature Converter sells 3 in-app purchases, starting at $0.99 per month and Unit Converter Engineering Pro sells 2 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Unit Converter Engineering Pro holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 8 and 3 respectively.

UpkeepUpdate frequency

Mila's Temperature Converter ships an update every 3 weeks, Unit Converter Engineering Pro weekly. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Mila's Temperature Converter versus Unit Converter Engineering Pro: the parameters behind the verdict, then further details
ParameterMila's Temperature ConverterUnit Converter Engineering Pro
PriceFreeFree
Rating4.3 (8 ratings)5.0 (3 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings8 — better3
Update frequencyEvery 3 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size11 MB77 MB
Age rating4+4+
DeveloperScott DeSapioKaiguri Tech

Customer experience

Mila's Temperature Converter

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Unit Converter Engineering Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Mila's Temperature Converter

Subscriptions2
  • Mila's Temperature PRO Monthly$0.991 Month
  • Mila's Temperature PRO Yearly$2.991 Year
One-time1
  • Mila's Temperature PRO Lifetime$4.99
2 purchases

Unit Converter Engineering Pro

Subscriptions2
  • 3-Day Trial3 Days trial$5.997 Days
  • Yearly Plan$19.991 Year

Questions

Is Mila's Temperature Converter free?
Mila's Temperature Converter is free to download, with in-app purchases available.
Is Unit Converter Engineering Pro free?
Unit Converter Engineering Pro is free to download, with in-app purchases available.
Which has better reviews, Mila's Temperature Converter or Unit Converter Engineering Pro?
Unit Converter Engineering Pro is rated higher. Mila's Temperature Converter averages 4.3 out of 5 from 8 ratings, while Unit Converter Engineering Pro averages 5.0 from 3 ratings.
Do Mila's Temperature Converter or Unit Converter Engineering Pro have ads?
Mila's Temperature Converter shows ads; Unit Converter Engineering Pro does not.
Which is updated more often, Mila's Temperature Converter or Unit Converter Engineering Pro?
Mila's Temperature Converter ships an update every 3 weeks, and Unit Converter Engineering Pro weekly. Most recently, Mila's Temperature Converter was updated on October 24, 2026 and Unit Converter Engineering Pro on October 24, 2026.

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