Guides / Brain Preflight vs SkyTest BU/GU Lite: iPhone Apps
Brain Preflight vs SkyTest BU/GU Lite: iPhone Apps
By Brain Preflight, the app developer · Checked 18 October 2026
Start training free with Brain Preflight: 5 free exercise sessions straight away, and 5 again every day. No purchase or subscription is required for those daily sessions.
SkyTest BU/GU Lite is a paid download: you buy the app before your first training session.
Start your 5 free sessionsThis page compares Brain Preflight with SkyTest BU/GU Lite, the mobile app. Other SkyTest apps and the full desktop suite are separate products.
| Your decision | Brain Preflight | SkyTest BU/GU Lite |
|---|---|---|
| Start training | Free download. 5 free sessions immediately, renewed every day. No purchase or subscription required. | Paid download. Payment required before training. |
| Device | iPhone. | iPhone app; SkyTest also offers an Android Lite app. |
| Practice focus | Mixed practice: arithmetic, logic, memory, spatial tasks and concurrent tracking, shape matching and arithmetic. | Eight DLR BU/GU-oriented modules, including cube tasks, memory and perceptual tasks. |
| Languages | Available in 5 languages: English, French, German, Spanish and Dutch. | English/German according to its app description. The App Store language field lists English. |
| What you are buying | A catalogue of 17 exercises and daily practice; Premium adds unlimited sessions, mock exams and detailed diagnostics. | The Lite mobile app. It is described by SkyTest as a complement to its separate desktop product. |
When Brain Preflight is a useful alternative
You might be preparing across several skill families, or want French, Spanish or Dutch practice. You can train five times a day without paying, and return for another five sessions the next day. Premium is optional. A sample session could combine a calculation grid, a cube-net exercise and a psychomotor round, then a review of your mistakes.
When the Lite app fits better
SkyTest BU/GU Lite offers its named DLR-oriented modules through an upfront app purchase. Brain Preflight gives you a free daily route into mixed aptitude practice. Stay with five free sessions a day, or choose Premium for unlimited sessions and additional features.
Build your daily practice routine
Choose a skill, complete a short session and review the result. For examples and a suggested schedule, explore our DLR preparation guide.
How we checked
Feature comparison by the Brain Preflight developer, based on the linked official product descriptions and App Store listings checked on 18 October 2026. Brain Preflight features were checked against our app implementation. This is a product-feature comparison, not a hands-on review of the competing app.
Sources: SkyTest’s Lite product page; SkyTest BU/GU Lite — German App Store.
Practise with Brain Preflight
Brain Preflight offers iPhone exercises in mental arithmetic, memory, spatial reasoning and divided attention. Its catalogue has 17 exercises. The app is available in 5 languages: English, French, German, Spanish and Dutch. Installed exercises work offline; purchases and online services require a connection.
Start with 5 free exercise sessions immediately, then get 5 again every day without a purchase or subscription. Optional paid Premium includes unlimited sessions, the app’s own mock-exam mode and detailed diagnostics. Follow your progress with the app’s 1–9 practice levels and session history.
Brain Preflight is developed by the team behind this guide.