# Unit Converter Engineering Pro — Metric Imperial & Scientific

> Professional unit converter for engineering, science, and math with extensive categories. (iPhone/iPad app by Kaiguri Tech.)

- Source: https://appshunter.io/ios/app/unit-converter-engineering-pro/id6757166485 (this page in markdown: same URL + `.md`)
- Developer: [Kaiguri Tech](https://appshunter.io/developer/1864995084)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 77 MB
- Languages: American English
- Released: 2026-01-07
- Data updated: 2026-08-12
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/unit-converter-engineering-pro/id6757166485/reviews.md

## What is Unit Converter Engineering Pro?

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/

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| 3-Day Trial | $5.99 | per 7 days |
| Yearly Plan | $19.99 | per year |



## Frequently asked questions about Unit Converter Engineering Pro

### What is Unit Converter Engineering Pro?

Unit Converter Engineering Pro is a utility app designed for precise unit conversions across various scientific and engineering disciplines. It offers a wide range of units and categories, ensuring accuracy for professionals and students.

### What categories of units does Unit Converter Engineering Pro support?

The app supports over 35 categories, including Acceleration, Area, Energy, Force, Mass, Pressure, Temperature, Volume, and Velocity, among many others commonly used in engineering and science.

### Does Unit Converter Engineering Pro work offline?

Yes, Unit Converter Engineering Pro works offline, meaning you do not require an internet connection to perform unit conversions. This makes it a reliable tool for fieldwork or areas with limited connectivity.

### What is the precision offered by Unit Converter Engineering Pro?

The app provides 9-digit decimal precision, supporting scientific notation for extreme accuracy. This level of detail is crucial for engineering-grade calculations and scientific research.

### Is Unit Converter Engineering Pro compliant with standards?

Yes, the app is fully compliant with SI, NIST, and ISO standards. This ensures that the conversions performed are accurate and adhere to internationally recognized scientific and technical guidelines.

### What are the subscription plans for Unit Converter Engineering Pro?

Unit Converter Engineering Pro offers a 3-day free trial for $5.99 per week, and a yearly plan for $19.99 per year. These plans provide access to advanced features and support the app's development.

### How often is Unit Converter Engineering Pro updated?

The app was last updated on January 22, 2026, with version 1.03. Updates typically include new features, bug fixes, and improvements to ensure optimal performance and accuracy.

### What devices is Unit Converter Engineering Pro available on?

Unit Converter Engineering Pro is available on iPhone, iPad, and iPod devices. Its user interface is designed to be intuitive and efficient across these Apple platforms.

## Version history (last 3 releases)

### 1.03 — 2026-01-22

Thanks for downloading Unit Converter Engineering Pro.

We have fixed an issue where subscription validity was not being checked correctly.

### 1.02 — 2026-01-16

Thanks for downloading Unit Converter Engineering Pro! 

We’d love to hear your thoughts. Just tap the ‘Send Feedback’ button in the Settings screen. 

We’ve also fixed some bugs to improve your experience.

### 1.0 — 2026-01-07

No release notes.

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All apps by Kaiguri Tech: https://appshunter.io/developer/1864995084

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-12.*