# ADF + RMI Trainer vs VRflow DA40

The clearest difference is rating: ADF + RMI Trainer at 4.9 against VRflow DA40's 3.7. ADF + RMI Trainer also leads on in-app purchases (none vs 1) and review sentiment (71% vs 50%). VRflow DA40's advantage is iOS requirement (15.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. VRflow DA40 sells 1 in-app purchase, starting at $11.99 per month. ADF + RMI Trainer asks for nothing beyond the download.

ADF + RMI Trainer holds the better App Store score, 4.9 against 3.7. That said, the two scores are not equally well evidenced: ADF + RMI Trainer has 110 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 71% of ADF + RMI Trainer's written reviews are positive against 50% of VRflow DA40's.

ADF + RMI Trainer ships an update every 4 months, VRflow DA40 every 9 months. The most recent releases landed on September 7, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | ADF + RMI Trainer | VRflow DA40 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (110 ratings)](https://appshunter.io/ios/app/adf-plus-rmi-trainer-ifr-pilot/id674942534/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/vrflow-da40/id6444026708/reviews) |
| Number of ratings | **110** | 3 |
| Positive reviews | **71.4% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | **Free** | Freemium |
| Size | 152 MB | 780 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Flygo-Aviation Ltd](https://appshunter.io/developer/550770776) | [VRpilot](https://appshunter.io/developer/1549637695) |

## What reviewers say

### ADF + RMI Trainer

[App page](https://appshunter.io/ios/app/adf-plus-rmi-trainer-ifr-pilot/id674942534)

This app provides interactive lessons and simulations for instrument flight students and instructors to master ADF and RMI radio navigation skills. It helps users learn to read indications, track bearings, and apply IFR procedures with confidence through step-by-step guidance and instant feedback.

**Highlights:** Interactive lessons for core skills, IFR exercises for practical application, ADF/RMI simulator, Step-by-step guidance, Instant feedback

**Features:** Vision Pro support

**In-app purchases:** none


### VRflow DA40

[App page](https://appshunter.io/ios/app/vrflow-da40/id6444026708)

An interactive cockpit procedure trainer for the DA40 NG aircraft. It offers step-by-step explanations, dynamic checklists, and realistic system behavior to enhance pilot training and knowledge retention. Explore the cockpit interactively and prepare for flights or check rides.

**Highlights:** Interactive cockpit procedure training, Normal and emergency procedure modules, Cockpit familiarization/Explore Mode, Dynamic checklists and explanations, Realistic aircraft systems simulation, Training and Exam Modes

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DA40 monthly subscription | $11.99 | per month |


## Frequently asked questions

### Is ADF + RMI Trainer free?

ADF + RMI Trainer is free to download, with no in-app purchases.

### Is VRflow DA40 free?

VRflow DA40 is free to download, with in-app purchases available.

### Which has better reviews, ADF + RMI Trainer or VRflow DA40?

ADF + RMI Trainer is rated higher. ADF + RMI Trainer averages 4.9 out of 5 from 110 ratings, while VRflow DA40 averages 3.7 from 3 ratings.

### Do ADF + RMI Trainer or VRflow DA40 have ads?

Neither ADF + RMI Trainer nor VRflow DA40 shows ads.

### Which is updated more often, ADF + RMI Trainer or VRflow DA40?

ADF + RMI Trainer ships an update every 4 months, and VRflow DA40 every 9 months. Most recently, ADF + RMI Trainer was updated on September 7, 2026 and VRflow DA40 on September 11, 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.*