# CommStudy vs Aviation Mechanic O&P

The clearest difference is review sentiment: CommStudy at 91% against Aviation Mechanic O&P's 0%. CommStudy also leads on price (Free vs $9.99) and rating (4.5 vs 1.3). Aviation Mechanic O&P's advantage is in-app purchases (none vs 7). On update cadence, ads and device support there is nothing between them.

CommStudy is free to download; Aviation Mechanic O&P costs $9.99 up front. CommStudy sells 7 one-off in-app purchases. Aviation Mechanic O&P asks for nothing beyond the download.

CommStudy holds the better App Store score, 4.5 against 1.3. That said, the two scores are not equally well evidenced: CommStudy has 49 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 91% of CommStudy's written reviews are positive against 0% of Aviation Mechanic O&P's.

CommStudy ships an update every 20 months, Aviation Mechanic O&P every 13 months. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | CommStudy | Aviation Mechanic O&P |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.5 (49 ratings)](https://appshunter.io/ios/app/commstudy/id337472575/reviews)** | [1.3 (4 ratings)](https://appshunter.io/ios/app/aviation-mechanic-o-and-p/id6670143456/reviews) |
| Number of ratings | **49** | 4 |
| Positive reviews | **91.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 13 months** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 42 MB | 8 MB |
| Requires iOS | **9.3** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Patrick J Maloney LLC](https://appshunter.io/developer/297951499) | [ASA](https://appshunter.io/developer/334278379) |

## What reviewers say

### CommStudy

[App page](https://appshunter.io/ios/app/commstudy/id337472575)

Prepare for your FCC Commercial License exam with this comprehensive study tool. Practice with sample questions and full elements, review figures, and track your proficiency across all topics. Take realistic practice exams and get immediate feedback to identify areas needing more study.

**Highlights:** Practice with sample and full FCC license exam elements, Review associated figures for questions, Track proficiency by subelement/topic, Realistic practice exams, Immediate feedback option, Resume in-progress tests, Configurable test settings

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Element 1 | $2.99 | one-time |
| Element 8 | $3.99 | one-time |
| Element 7R | $3.99 | one-time |
| Element 9 | $3.99 | one-time |
| Element 3 | $4.99 | one-time |
| Element 6 | $4.99 | one-time |
| Element 7 | $4.99 | one-time |


### Aviation Mechanic O&P

[App page](https://appshunter.io/ios/app/aviation-mechanic-o-and-p/id6670143456)

Prepare for your aviation mechanic certification exams with this comprehensive study tool. It offers a question-and-answer format covering essential knowledge, risk management, and practical skills required by the FAA. Identify weaknesses and build confidence for your Oral and Practical exams.

**Highlights:** FAA ACS code support, Question and answer format, Flagging for further study, Based on Keith Anderson's guide, Covers Airframe and Powerplant ratings, Identifies knowledge gaps

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

**In-app purchases:** none


## Frequently asked questions

### Is CommStudy free?

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

### Is Aviation Mechanic O&P free?

Aviation Mechanic O&P costs $9.99, with no in-app purchases.

### Which has better reviews, CommStudy or Aviation Mechanic O&P?

CommStudy is rated higher. CommStudy averages 4.5 out of 5 from 49 ratings, while Aviation Mechanic O&P averages 1.3 from 4 ratings.

### Do CommStudy or Aviation Mechanic O&P have ads?

Neither CommStudy nor Aviation Mechanic O&P shows ads.

### Which is updated more often, CommStudy or Aviation Mechanic O&P?

CommStudy ships an update every 20 months, and Aviation Mechanic O&P every 13 months. Most recently, CommStudy was updated on October 8, 2026 and Aviation Mechanic O&P on October 13, 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.*