Comparison

Quant 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

Quant

Features
Read full description

Quant Unit Converter is a powerful tool for accurate conversion of physical quantities. Designed with the needs of engineers, scientists, students and everyone working with physical quantities in mind. Key features: ∙ Wide range of conversion units - more than 100 measurement units in various categories; ∙ Intuitive interface - simple and clear design for fast operation; ∙ Accurate calculations - high precision conversion with scientific notation support; ∙ Offline operation - works without internet connection. Unit categories: ∙ Basic: length, area, volume, mass, time, temperature; ∙ Physics: speed, acceleration, force, pressure, density, energy; ∙ Engineering: power, heat capacity, electricity, magnetism; ∙ Chemistry: amount of substance, radioactivity, viscosity. Fast and convenient operation: ∙ Instant conversion of selected measurement units when entering values; ∙ Quick copying of results; ∙ Ability to choose value rounding precision; ∙ Convenient setup of categories and measurement units you work with; ∙ Support for light and dark interface themes; ∙ No ads, only one-time purchase to unlock all conversion categories and support developers.

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

Quant4 screens
Unit Converter Engineering Pro3 screens

Verdict

The call

The clearest difference is iOS requirement: Unit Converter Engineering Pro at 13.0 against Quant's 17.6. On price, ads, in-app purchases 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. Quant sells 1 one-off in-app purchase 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.

Scorecard1 real difference · 8 level
Quant versus Unit Converter Engineering Pro: the parameters behind the verdict, then further details
ParameterQuantUnit Converter Engineering Pro
PriceFreeFree
Rating5.0 (1 ratings) — better
Number of ratings1 — better
Update frequencyWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size11 MB77 MB
Age rating4+4+
DeveloperAnatolii AtamanovKaiguri Tech

In-app purchases

1 purchases

Quant

One-time1
  • Full Version$3.99
2 purchases

Unit Converter Engineering Pro

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

Questions

Is Quant free?
Quant 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.
Do Quant or Unit Converter Engineering Pro have ads?
Neither Quant nor Unit Converter Engineering Pro shows ads.

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