# Unit Converter Pro HD. vs Solving Pythagoras PRO

The clearest difference is rating: Unit Converter Pro HD. at 4.6 against Solving Pythagoras PRO's 4.2. Unit Converter Pro HD. also leads on review sentiment (87% vs 71%) and ratings volume (187 vs 35). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Unit Converter Pro HD. costs $0.99 and Solving Pythagoras PRO $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Unit Converter Pro HD. holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Unit Converter Pro HD. has 187 ratings behind it against 35, so its average is the more settled of the two. Written reviews point the same way: 87% of Unit Converter Pro HD.'s written reviews are positive against 71% of Solving Pythagoras PRO's.

Unit Converter Pro HD. ships an update every 2 months, Solving Pythagoras PRO every 5 weeks. The most recent releases landed on September 26, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Unit Converter Pro HD. | Solving Pythagoras PRO |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | **[4.6 (187 ratings)](https://appshunter.io/ios/app/unit-converter-pro-hd/id458584668/reviews)** | [4.2 (35 ratings)](https://appshunter.io/ios/app/solving-pythagoras-pro/id1273601215/reviews) |
| Number of ratings | **187** | 35 |
| Positive reviews | **86.7% of reviews** | 71.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 13 MB | 179 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### Unit Converter Pro HD.

[App page](https://appshunter.io/ios/app/unit-converter-pro-hd/id458584668)

Easily convert between over 700 units of measure across 30 categories. This powerful tool acts as a universal assistant for all your conversion needs, saving you time and effort.

**Highlights:** 30 conversion categories, Over 700 units of measure, Backspace key for corrections, Intuitive and easy to use, Supports Dark Mode

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and efficient
- 👍 Easy to use
- 👍 Comprehensive unit conversions
- 👍 Accurate calculations
- 👍 Handy and useful

**What reviewers complain about**

- 🐛 Missing some important units
- 🔍 Difficult to navigate and find desired units
- 🔍 Cluttered interface with too many options
- 🔋 High battery consumption

**Reported bugs**

- Incorrect fuel consumption conversions
- Conversion values disappearing after update

**Requested features**

- Add support for more units (e.g. knots, stone, electron volts)
- Improve navigation and make it easier to find desired units
- Add portrait mode support
- Optimize interface for better usability


### Solving Pythagoras PRO

[App page](https://appshunter.io/ios/app/solving-pythagoras-pro/id1273601215)

Easily calculate the sides of a right-angled triangle using the Pythagorean theorem. Input two sides to find the third, with all calculations saved in a history. Supports fractions and provides clear solution steps.

**Highlights:** Pythagorean theorem calculations, Calculate any of the three sides, Fraction input support, Calculation history, Clear solution steps, Manual history sorting and deletion

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter Pro HD. free?

Unit Converter Pro HD. costs $0.99, with no in-app purchases.

### Is Solving Pythagoras PRO free?

Solving Pythagoras PRO costs $1.99, with no in-app purchases.

### Which has better reviews, Unit Converter Pro HD. or Solving Pythagoras PRO?

Unit Converter Pro HD. is rated higher. Unit Converter Pro HD. averages 4.6 out of 5 from 187 ratings, while Solving Pythagoras PRO averages 4.2 from 35 ratings.

### Do Unit Converter Pro HD. or Solving Pythagoras PRO have ads?

Neither Unit Converter Pro HD. nor Solving Pythagoras PRO shows ads.

### Which is updated more often, Unit Converter Pro HD. or Solving Pythagoras PRO?

Unit Converter Pro HD. ships an update every 2 months, and Solving Pythagoras PRO every 5 weeks. Most recently, Unit Converter Pro HD. was updated on September 26, 2026 and Solving Pythagoras PRO on September 17, 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.*