# Proportional Scale vs EMB 145 Training Guide PRO

The clearest difference is price: Proportional Scale at $1.99 against EMB 145 Training Guide PRO's $19.99. Proportional Scale also leads on rating (4.5 vs 3.8) and update cadence (every 5 months vs every 17 months). EMB 145 Training Guide PRO's advantage is review sentiment (100% vs 75%). On ads, in-app purchases and device support there is nothing between them.

Proportional Scale costs $1.99 and EMB 145 Training Guide PRO $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Proportional Scale holds the better App Store score, 4.5 against 3.8. Both are backed by a comparable volume of ratings — 14 and 4 respectively. Written reviews complicate that: 75% of Proportional Scale's written reviews are positive against 100% of EMB 145 Training Guide PRO's, so the app with the better star average is not the one people write more warmly about.

Proportional Scale ships an update every 5 months, EMB 145 Training Guide PRO every 17 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Proportional Scale | EMB 145 Training Guide PRO |
| --- | --- | --- |
| Price | **$1.99** | $19.99 |
| Rating | **[4.5 (14 ratings)](https://appshunter.io/ios/app/proportional-scale/id330739388/reviews)** | [3.8 (4 ratings)](https://appshunter.io/ios/app/emb-145-training-guide-pro/id1496967790/reviews) |
| Number of ratings | **14** | 4 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 17 months |
| Monetization | **Free** | Paid |
| Size | 5 MB | 171 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Courtney & Company](https://appshunter.io/developer/322380460) | [Jorge Gonzalez Galvan](https://appshunter.io/developer/915982572) |

## What reviewers say

### Proportional Scale

[App page](https://appshunter.io/ios/app/proportional-scale/id330739388)

Easily calculate new image dimensions while preserving aspect ratio to avoid distortion. This tool helps graphic designers, photographers, and professionals accurately resize images for various needs, including blueprinting and sign making.

**Highlights:** Scale image dimensions, Maintain image proportions, Fraction modes, Percent mode, Image scale tool, Image preview

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

**In-app purchases:** none


### EMB 145 Training Guide PRO

[App page](https://appshunter.io/ios/app/emb-145-training-guide-pro/id1496967790)

This comprehensive guide offers thousands of questions, detailed explanations, and high-definition images covering all systems of the EMB-145 airplane. It includes fast search tools for abbreviations, EICAS messages, and limitations, along with an interactive virtual panel and a unit converter.

**Highlights:** Extensive Q&A on EMB-145 systems, Detailed answer explanations, High-definition images and interactive panel, Fast search for abbreviations and limitations, Unit conversion tools, Dark mode support

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

**In-app purchases:** none


## Frequently asked questions

### Is Proportional Scale free?

Proportional Scale costs $1.99, with no in-app purchases.

### Is EMB 145 Training Guide PRO free?

EMB 145 Training Guide PRO costs $19.99, with no in-app purchases.

### Which has better reviews, Proportional Scale or EMB 145 Training Guide PRO?

Proportional Scale is rated higher. Proportional Scale averages 4.5 out of 5 from 14 ratings, while EMB 145 Training Guide PRO averages 3.8 from 4 ratings.

### Do Proportional Scale or EMB 145 Training Guide PRO have ads?

Neither Proportional Scale nor EMB 145 Training Guide PRO shows ads.

### Which is updated more often, Proportional Scale or EMB 145 Training Guide PRO?

Proportional Scale ships an update every 5 months, and EMB 145 Training Guide PRO every 17 months. Most recently, Proportional Scale was updated on October 26, 2026 and EMB 145 Training Guide PRO on October 24, 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.*