PreFlight vs BASI Study
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
PreFlight
This app helps aircrew practice normal and emergency drills for the Grob Tutor T1 aircraft. It provides instant feedback on instrument and switch selections, serving as a memory aid for flight reference cards.
- Practice normal and emergency drills
- Instant feedback on instrument/switch selection
- Supports Grob Tutor T1 (Classic & EA)
- Memory aid for flight reference cards
- Designed for aircrew training
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PreFlight is a bespoke application designed for use by aircrew undertaking Elementary Flying Training, University Air Squadron, Grading, Air Experience Flying, or any other flying duties on the Grob Tutor T1, both Classic and EA variants. Pilots are able to learn and practice both normal and emergency drills for the Tutor, with the app giving instant feedback on whether the instrument or switch selection is correct. This app is also intended as a proof of concept to facilitate further development of iOS training aids for aircrew on other service aircraft in future. PreFlight is only intended for use as a memory aid to issued Flight Reference Cards (FRCs). It should not be relied upon to conduct flight safety critical tasks as it is not subject to direct amendment and may not be up to date. It is your responsibility to check the official issue documentation to ensure accuracy.
BASI Study
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BASI is a UK-based membership association, responsible for the training and licensing of snowsport instructors. In this app, you'll be able to access and complete our suite of online courses which compliment our face to face courses. You'll find the list of online courses you need to complete for each face to face course in the pre-course information email we've sent you.
Screenshots
Verdict
The clearest difference is price: BASI Study at Free against PreFlight's $2.99. BASI Study also leads on update cadence (every 6 weeks vs every 10 months) and device support (3 vs 1). PreFlight's advantage is iOS requirement (11.0 vs 15.2). On ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
BASI Study is free to download; PreFlight costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PreFlight ships an update every 10 months, BASI Study every 6 weeks. The most recent releases landed on June 5, 2026 and September 13, 2026 respectively.
| Parameter | PreFlight | BASI Study |
|---|---|---|
| Price | $2.99 | Free โ better |
| Positive reviews | 100.0% of reviews | โ |
| Update frequency | Every 10 months | Every 6 weeks โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | โ |
| Devices | iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 11.0 โ better | 15.2 |
| Further details โ not scored | ||
| Size | 57 MB | 111 MB |
| Age rating | 4+ | 4+ |
| Developer | Mountain Wave Media Ltd | British Association of Snowsport Instructors |
In-app purchases
PreFlight
No in-app purchases
BASI Study
No in-app purchases








