# iDIAMOND Checkride Prep vs RoboCFI

iDIAMOND Checkride Prep and RoboCFI both sit at 3.7 stars, but that hides the real split: 100% of RoboCFI's written reviews are positive against 50% of iDIAMOND Checkride Prep's. RoboCFI also leads on update cadence (fortnightly vs every 6 weeks). iDIAMOND Checkride Prep's advantage is monetization model (free vs free with in-app purchases). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. iDIAMOND Checkride Prep sells 5 one-off in-app purchases and RoboCFI sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 3.7 for iDIAMOND Checkride Prep against 3.7 for RoboCFI. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews are what separate them: 50% of iDIAMOND Checkride Prep's written reviews are positive against 100% of RoboCFI's.

iDIAMOND Checkride Prep ships an update every 6 weeks, RoboCFI fortnightly. The most recent releases landed on June 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | iDIAMOND Checkride Prep | RoboCFI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/idiamond-checkride-prep/id1507414847/reviews) | [3.7 (3 ratings)](https://appshunter.io/ios/app/robocfi/id6502372463/reviews) |
| Number of ratings | 3 | 3 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 78 MB | 49 MB |
| Requires iOS | **13.0** | 14.0.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Aircraft Apps LLC](https://appshunter.io/developer/1499571546) | [RoboCFI LLC](https://appshunter.io/developer/953702880) |

## What reviewers say

### iDIAMOND Checkride Prep

[App page](https://appshunter.io/ios/app/idiamond-checkride-prep/id1507414847)

Prepare for aviation checkrides with interactive flashcards, quizzes, and an AI assistant. Access worldwide weather, airport information, and a community forum for pilots. Includes a fun aviation-themed board game to reinforce learning.

**Highlights:** Aircraft system flashcards and quizzes, AI-powered aviation Q&A, Worldwide weather and airport data, Customizable flashcard maker, Aviation-themed board game, Community message board

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MindCoach: Personal Health | $19.99 | one-time |
| 20 FAA Handbooks & Manuals | $19.99 | one-time |
| Diamond DA-20 Checkride Prep | $29.99 | one-time |
| Diamond DA-42 Checkride Prep | $29.99 | one-time |
| Diamond DA-40 | $29.99 | one-time |


### RoboCFI

[App page](https://appshunter.io/ios/app/robocfi/id6502372463)

This AI-powered app simplifies complex Federal Aviation Administration (FAA) publications, making them easier to understand for pilots, students, and enthusiasts. Get instant answers to aviation-related questions and enhance your knowledge of regulations.

**Highlights:** AI-powered navigation of FAA publications, Simplified explanations of regulations, Instant answers to aviation queries, User-friendly interface, Comprehensive coverage of aviation documents, Personalized assistance for users

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $3.99 | per month |
| Annual Subscription | $29.99 | per year |


## Frequently asked questions

### Is iDIAMOND Checkride Prep free?

iDIAMOND Checkride Prep is free to download, with in-app purchases available.

### Is RoboCFI free?

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

### Which has better reviews, iDIAMOND Checkride Prep or RoboCFI?

iDIAMOND Checkride Prep and RoboCFI are both rated 3.7 out of 5 on the App Store, from 3 and 3 ratings respectively.

### Do iDIAMOND Checkride Prep or RoboCFI have ads?

Neither iDIAMOND Checkride Prep nor RoboCFI shows ads.

### Which is updated more often, iDIAMOND Checkride Prep or RoboCFI?

iDIAMOND Checkride Prep ships an update every 6 weeks, and RoboCFI fortnightly. Most recently, iDIAMOND Checkride Prep was updated on June 11, 2026 and RoboCFI on September 9, 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.*