# ExSciCalc vs Unit Converter For Engineers

The clearest difference is price: Unit Converter For Engineers at Free against ExSciCalc's $1.99. Unit Converter For Engineers also leads on update cadence (every 9 days vs every 3 weeks) and ratings volume (3 vs 1). ExSciCalc's advantage is in-app purchases (none vs 2) and iOS requirement (14.0 vs 16.2). On rating, review sentiment, ads and device support there is nothing between them.

Unit Converter For Engineers is free to download; ExSciCalc costs $1.99 up front. Unit Converter For Engineers sells 2 in-app purchases, starting at $9.99 per year. ExSciCalc asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for ExSciCalc against 5.0 for Unit Converter For Engineers. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

ExSciCalc ships an update every 3 weeks, Unit Converter For Engineers every 9 days. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | ExSciCalc | Unit Converter For Engineers |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/exscicalc/id1625177287/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/unit-converter-for-engineers/id6752224915/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Paid | **Freemium** |
| Size | 1 MB | 5 MB |
| Requires iOS | **14.0** | 16.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Dale C Koepp](https://appshunter.io/developer/331525420) | [Amanuel Abebaw](https://appshunter.io/developer/1766393564) |

## What reviewers say

### ExSciCalc

[App page](https://appshunter.io/ios/app/exscicalc/id1625177287)

This calculator offers enhanced precision and memory beyond standard devices. It includes advanced functions for statistics, physics, and mathematics, alongside common calculations and unit conversions.

**Highlights:** Extended precision (30+ digits), Extended memory (main + 10 auxiliary), Scroll windows for button access, Statistical calculations, Physical and mathematical constants, Unit conversions, Roots of equations, Special relativity calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### Unit Converter For Engineers

[App page](https://appshunter.io/ios/app/unit-converter-for-engineers/id6752224915)

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:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $9.99 | per year |
| Lifetime Access | $29.99 | one-time |


## Frequently asked questions

### Is ExSciCalc free?

ExSciCalc costs $1.99, 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, ExSciCalc or Unit Converter For Engineers?

ExSciCalc and Unit Converter For Engineers are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do ExSciCalc or Unit Converter For Engineers have ads?

Neither ExSciCalc nor Unit Converter For Engineers shows ads.

### Which is updated more often, ExSciCalc or Unit Converter For Engineers?

ExSciCalc ships an update every 3 weeks, and Unit Converter For Engineers every 9 days. Most recently, ExSciCalc was updated on October 24, 2026 and Unit Converter For Engineers on October 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*