Commercial Pilot · CPAER · Aeroplane · Canada
CPL Prep
Get past the 60% line in all four areas of the Canadian commercial pilot licence written exam, CPAER. Read drawn weather charts, instrument faces and weight-and-balance envelopes, work 733 original questions, and sit timed mocks that report the way the examiner does. Free to try on iPhone, iPad and Mac.
Read the figures the exam hands you
Open the app and the chart desk is the first thing you see. One tap gives you a fresh Graphic Area Forecast, a surface analysis, an upper-air analysis to 500 hPa, a significant weather prognostic chart for 700 to 400 hPa, a VOR, HSI, ADF or RMI face, or a loaded aeroplane with the centre-of-gravity envelope drawn beside its loading sheet. Each chart is a new fictional drawing made by the app, never a copy of an official chart. Zoom in, open the legend, answer, and the solution is marked on the chart; the load points and weights stay hidden until you have answered.
Mocks that report the way the examiner does
One hundred questions on the full 3½-hour clock, with flagging and a palette and nothing revealed until you submit. Five weather-chart questions sit in Meteorology and three instrument faces in Navigation. The pass rule is the real one: 60% overall and 60% in each area; below 60% overall is a whole-paper rewrite, and 60% overall with a failed area is a partial pass whose result names the areas to rewrite. The study guide gives no split by area, so the mock follows the sizes of the four supplementary papers and says it is an estimate.
Rewrite only what you missed
Sit exactly what a partial pass asks for: CALAW (Air Law, 20 questions), CANAV (Navigation, 25), CAMET (Meteorology, 25) and CAGEN (General Knowledge, 35), each on its own clock at 60%. Papers sat together share one sitting of at most 3½ hours, and the Exam tab shows how the time adds up.
Routes, loads and weather, generated
Each session plans a new VFR route between real Canadian aerodromes, with winds aloft, variation, fuel flow and a deviation card, and asks for headings, groundspeeds, ETAs and minimum fuel. The loading-sheet trainer asks for weight, centre of gravity, the envelope verdict and the fix; the weather trainer pairs a METAR with its TAF. Drills cover altitudes, true airspeed, 1-in-60, crosswind, glide and the commercial medical under CAR 404.04, each with its working. New numbers every time.
What you miss comes back
Wrong answers return on a spaced schedule until they hold, and the dashboard tracks your readiness against the pass mark in every area and topic.
Built on the current rules
The sources are the CARs, the TC AIM, the TP 12881E commercial pilot licence guide (7th edition, August 2026) and standard aeronautical theory, reconciled with TC AIM 2026-2. Every answer shows its working or rule and the section it comes from, and 83 reference cards, one per topic, are free to read.
What is free, what unlocks
Your first 50 practice answers in any mode cost nothing, nor does one complete CPAER mock or the Library. Full Access, paid once and never renewed, opens unlimited practice and mocks, every chart exercise, all four rewrite papers and the trainers. It follows your Apple Account, and an offer code can be redeemed inside the app.
It runs on iPhone, iPad and Mac, and needs no connection to study. Progress syncs across your devices via your iCloud account unless you switch sync off. There is no account to make, no advertising, no analytics and no tracking.