Comparison

PropDeck vs CPL Prep

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

PropDeck

Features
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PropDeck is a focused ground-school and recurrent-study companion for pilots flying the Bombardier Dash 8 - both the Q400 and the Dash 8-100 (Q100). Built around the way crews actually learn aircraft systems, PropDeck turns the manuals into something you'll open every day. WHAT'S INSIDE - 22 ATA systems, taught for both aircraft: overview, components, normal operation, abnormals and the numbers that matter. - Original system schematics for every system, hand-drawn in a clean technical style - see how each system is built and how it flows. - Limitations decks: weights, speeds, pressures, temperatures and cold-weather limits, as a reference list and a Q&A drill. - Hundreds of flashcards and exam questions per aircraft, with a spaced-repetition queue so the right card comes back at the right time. - Marked tests: a 20-question graded test with a pass mark and a per-system breakdown, plus a hard-only mode. - Dash 8 family: the -100 / -200 / -300 / -400 lineage and what changed between them. - A daily study plan, streaks and badges to keep recurrent study honest. FREE & PRO PropDeck is free to try with a full system (Electrical) plus sample flashcards and questions. PropDeck Pro unlocks all 22 systems for both aircraft, every flashcard, the full exam bank, the limitations decks, flows and the Q100 vs Q400 compare - as a yearly subscription. FOR TRAINING ONLY PropDeck is a study and tutorial aid. It is not affiliated with, authorized or endorsed by De Havilland Aircraft of Canada or Bombardier, and it is not a substitute for approved company documentation. Always fly the aircraft by your operator's AFM, QRH and SOPs. TERMS & PRIVACY - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy Policy: https://samicventures.com/propdeck/privacy.html

About

CPL Prep

Features
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Designed for learners worldwide preparing for the United States FAA Commercial Pilot Airplane (CAX) knowledge test. Prepare with a complete, structured study system. KEY FEATURES โ€ข 850 study cards: 120 abbreviations, 230 aviation terms, and 500 practice questions โ€ข Realistic Sprint, Half, and Final mock exams, including the official 100-question/150-minute format โ€ข Detailed explanations, trap points, bookmarks, and wrong-answer review โ€ข Weak-area analysis, Leitner spaced repetition, and an exam-date study plan โ€ข Interface and explanations in 7 languages CPL PRO โ€” ONE-TIME PURCHASE Unlock all questions, Half and Final mock exams, complete explanations, exam scheduling, unlimited bookmarks, and remove ads. No subscription. This app is not affiliated with or endorsed by the FAA. Practice scores do not guarantee a passing result on the official exam.

Screenshots

PropDeck4 screens
CPL Prep4 screens

Verdict

The call

PropDeck and CPL Prep are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. PropDeck sells 1 in-app purchase, starting at $39.99 per year and CPL Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PropDeck ships an update every 3 weeks, CPL Prep fortnightly. Both last shipped on October 25, 2026.

ScorecardNo meaningful differences
PropDeck versus CPL Prep: the parameters behind the verdict, then further details
ParameterPropDeckCPL Prep
PriceFreeFree
Update frequencyEvery 3 weeksFortnightly โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details โ€” not scored
Size25 MB23 MB
Age rating4+4+
DeveloperSamic Ventures LLCTomocreate, Inc.

In-app purchases

1 purchases

PropDeck

Subscriptions1
  • PropDeck Pro (Yearly)$39.991 Year
1 purchases

CPL Prep

One-time1
  • CPL Pro$29.99

Questions

Is PropDeck free?
PropDeck is free to download, with in-app purchases available.
Is CPL Prep free?
CPL Prep is free to download, with in-app purchases available.
Do PropDeck or CPL Prep have ads?
Neither PropDeck nor CPL Prep shows ads.
Which is updated more often, PropDeck or CPL Prep?
PropDeck ships an update every 3 weeks, and CPL Prep fortnightly. Most recently, PropDeck was updated on October 25, 2026 and CPL Prep on October 25, 2026.

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