# C172M vs E

The clearest difference is price: E at Free against C172M's $13.99. E also leads on rating (5.0 vs 3.0) and update cadence (weekly vs every 7 months). C172M's advantage is in-app purchases (none vs 1). On ratings volume and ads there is nothing between them.

E is free to download; C172M costs $13.99 up front. E sells 1 one-off in-app purchase. C172M asks for nothing beyond the download.

E holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

C172M ships an update every 7 months, E weekly. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | C172M | E |
| --- | --- | --- |
| Price | $13.99 | **Free** |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/c172m/id596045714/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/e-170175-aircraft-apps/id1637315525/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 27 MB | 109 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gyronimo, LLC](https://appshunter.io/developer/536898885) | [Aircraft Apps LLC](https://appshunter.io/developer/1499571546) |

## What reviewers say

### C172M

[App page](https://appshunter.io/ios/app/c172m/id596045714)

This app calculates mass, balance, and performance data for the Cessna 172M aircraft using actual Pilot's Operating Handbook values. It helps pilots plan flights quickly by determining optimal cruise altitudes, takeoff and landing distances, climb data, and stall speeds.

**Highlights:** Mass & Balance calculations, Takeoff and Landing performance, Climb data calculation, Optimal cruise altitude determination, Stall speed calculation, Save and load aircraft settings, Email load manifest

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-170175-aircraft-apps/id1637315525)

This app provides supplemental study material for Embraer E-170/175 aircraft type ratings. It offers flashcards, quizzes, and memory items for pilots preparing for exams and recurrent training. Features include weather data, distance calculations, and conversion tools.

**Highlights:** Aircraft system flashcards, Multiple choice quizzes with timer, Memory items study, Aircraft limitations study, Worldwide weather and METAR/TAF, Airport distance calculator, Aircraft conversion calculator

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| E-170175 Type Rating Prep | $19.99 | one-time |


## Frequently asked questions

### Is C172M free?

C172M costs $13.99, with no in-app purchases.

### Is E free?

E is free to download, with in-app purchases available.

### Which has better reviews, C172M or E?

E is rated higher. C172M averages 3.0 out of 5 from 2 ratings, while E averages 5.0 from 1 ratings.

### Do C172M or E have ads?

Neither C172M nor E shows ads.

### Which is updated more often, C172M or E?

C172M ships an update every 7 months, and E weekly. Most recently, C172M was updated on October 11, 2026 and E on October 12, 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.*