# Prepware Remote Pilot UAS vs Zephyr Mobile Controller

The clearest difference is review sentiment: Prepware Remote Pilot UAS at 66% against Zephyr Mobile Controller's 0%. Prepware Remote Pilot UAS also leads on rating (4.2 vs 1.0) and ratings volume (102 vs 3). Zephyr Mobile Controller's advantage is price (Free vs $4.99) and iOS requirement (9.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Zephyr Mobile Controller is free to download; Prepware Remote Pilot UAS costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Prepware Remote Pilot UAS holds the better App Store score, 4.2 against 1.0. That said, the two scores are not equally well evidenced: Prepware Remote Pilot UAS has 102 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 66% of Prepware Remote Pilot UAS's written reviews are positive against 0% of Zephyr Mobile Controller's.

Prepware Remote Pilot UAS ships an update every 4 months, Zephyr Mobile Controller every 16 months. The most recent releases landed on October 13, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Prepware Remote Pilot UAS | Zephyr Mobile Controller |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.2 (102 ratings)](https://appshunter.io/ios/app/prepware-remote-pilot-uas/id1135991142/reviews)** | [1.0 (3 ratings)](https://appshunter.io/ios/app/zephyr-mobile-controller/id1447511206/reviews) |
| Number of ratings | **102** | 3 |
| Positive reviews | **65.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 16 months |
| Monetization | Paid | **Free** |
| Best chart rank | **#15** | — |
| Size | 19 MB | 73 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASA](https://appshunter.io/developer/334278379) | [Little Arms Studios](https://appshunter.io/developer/827625791) |

## What reviewers say

### Prepware Remote Pilot UAS

[App page](https://appshunter.io/ios/app/prepware-remote-pilot-uas/id1135991142)

**Currently charting:** #15 Top Paid · Education, #117 Top Paid (US App Store)

Prepare for the FAA Remote Pilot Knowledge Exam with this comprehensive study and test tool. It offers practice tests, detailed explanations, and covers all essential subjects for drone operation certification. Ideal for aspiring commercial drone pilots and existing aviation professionals.

**Highlights:** Practice tests with questions, answers, and explanations, Topical study by subject matter, Instructional text and illustrations, Covers Regulations, Airspace, Weather, Loading, and Operations, References for further study

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

**In-app purchases:** none

**What reviewers like**

- ✅ Passed exam with app
- 💰 Affordable price
- 📚 Good practice questions
- 💡 Explanations provided
- 📱 Convenient mobile study

**What reviewers complain about**

- 🐛 Inaccurate/outdated questions
- 🐛 Questions not on actual exam
- 🐛 Missing legends for charts
- 🐛 Incorrectly graded questions
- 🐛 Lacks study materials

**Reported bugs**

- Question #1141 has incorrect answer/explanation
- Questions are impossible to grade correctly
- App shows remote pilot questions mixed with actual pilot exam questions
- Suddenly showing TSA and runway sign questions
- Legends are not included in figures

**Requested features**

- Add legends to figures
- Allow practice on fewer questions
- Include flashcards or study materials
- Add a 'Review Missed' feature
- Update questions for current regulations


### Zephyr Mobile Controller

[App page](https://appshunter.io/ios/app/zephyr-mobile-controller/id1447511206)

Control drone simulations using your mobile device as a touchscreen controller. Connect your phone or tablet to the same network as the simulator for an immersive training experience.

**Highlights:** Touchscreen drone control, Mobile simulator interface, Network connectivity required, Requires Zephyr Drone Simulator account

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Prepware Remote Pilot UAS free?

Prepware Remote Pilot UAS costs $4.99, with no in-app purchases.

### Is Zephyr Mobile Controller free?

Zephyr Mobile Controller is free to download, with no in-app purchases.

### Which has better reviews, Prepware Remote Pilot UAS or Zephyr Mobile Controller?

Prepware Remote Pilot UAS is rated higher. Prepware Remote Pilot UAS averages 4.2 out of 5 from 102 ratings, while Zephyr Mobile Controller averages 1.0 from 3 ratings.

### Do Prepware Remote Pilot UAS or Zephyr Mobile Controller have ads?

Neither Prepware Remote Pilot UAS nor Zephyr Mobile Controller shows ads.

### Which is updated more often, Prepware Remote Pilot UAS or Zephyr Mobile Controller?

Prepware Remote Pilot UAS ships an update every 4 months, and Zephyr Mobile Controller every 16 months. Most recently, Prepware Remote Pilot UAS was updated on October 13, 2026 and Zephyr Mobile Controller on September 26, 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.*