Comparison

Private Pilot Test Prep vs Sky

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

Head to head
About

Private Pilot Test Prep

Prepare for the FAA Private Pilot Knowledge Test with over 900 practice questions and detailed explanations. Customize study sessions, review missed questions, and take simulated exams that mirror the official test format and question distribution. Unlock a complete ground school course for advanced features and tracking.

Highlights
  • Over 900 FAA practice questions
  • Detailed explanations and references
  • Customizable study sessions
  • Practice sessions from missed questions
  • Simulated FAA exams
  • Data sync across iOS devices
  • Instructor endorsement upon course completion
Read full description

The #1 Private Pilot test prep app is now free, and includes over 900 FAA questions and explanations to help prepare for the FAA Private Pilot Knowledge Test. Upgrade to the complete ground school course to unlock all lesson, detailed tracking and statistics, and premium test prep with hundreds of additional questions (free trial available). ▸ Custom study sessions based on topics, session size, and your overall mastery. Filters allow you to include or exclude questions that require the use of figures or an E6B. ▸ Create practice sessions from missed questions after a completed practice or exam session. ▸ Review missed questions after a practice or exam session. ▸ Take simulated FAA exams administered under the same rules and time constraints as the actual Private Pilot knowledge test. Unlike other test prep apps, our exams present the correct proportion of questions from each knowledge area per the ACS. ▸ Sync your data and course progress across on all of your iOS devices ▸ Access a library of study resources for the Private Pilot certificate ▸ Question bank covers all areas of the Private Pilot Airman Certification Standards to ensure thorough preparation for the knowledge test. ▸ Detailed explanations and references for all questions. ▸ Obtain an instructor endorsement after completing the course.

About

Sky

Features
Read full description

Sky-Bound is the most complete FAA checkride prep app for student pilots and certificated aviators. Built around the FAA Airman Certification Standards (ACS), every piece of content is mapped to the exact knowledge areas you'll be tested on. CERTIFICATION TRACKS Study for 7 FAA certificates and ratings in one app: • Private Pilot (PPL) • Instrument Rating (IFR) • Commercial Pilot (CPL) • Multi-Engine (ME) • Multi-Engine Commercial (MEC) • Flight Instructor (CFI) • Instrument Flight Instructor (CFII) PRACTICE TESTS 3,768 questions across 73 test categories — rewritten for accuracy and ACS alignment. Choose from curated presets or build a custom test by category. Wrong answers link directly to the relevant study material and flashcards so you can close the gap immediately. FLASHCARDS WITH SPACED REPETITION 4,325 flashcards organized into 69 ACS-aligned categories. Our SM-2 spaced repetition algorithm schedules your reviews automatically — easy cards come back less often, harder ones more often — so you retain more with less time studying. MOCK CHECKRIDE Full oral exam simulation across all certification tracks. Exam mode with timer. Practice the real checkride experience before you sit across from a DPE. STUDY PLAN A structured Duolingo-style curriculum that walks you through each ACS area of operation in sequence. Daily sessions combine study content, flashcards, and practice questions. Spaced reviews are scheduled automatically after each completed day. STUDY CONTENT In-depth written material for every ACS area of operation across all 7 tracks — not just definitions, but the concepts behind them. Covers systems, regulations, weather, navigation, aerodynamics, and more. FAR/AIM REFERENCE 84 sections of the FARs and AIM, filtered by certification track, available offline. INTERACTIVE TOOLS • VFR Sectional chart symbols (37 symbols with tap-to-learn) • IFR En Route chart symbols (36 symbols) • METAR decoder with live weather interpretation • Holding pattern entry visualizer with animation and quiz mode • Pilot equations reference (13 equations) • Radio communications practice with ATC scenarios MISSED QUESTION BANK Every question you get wrong is automatically saved. Review your weak areas by track, filter by resolved status, and track your improvement over time. FLIGHT HOUR TRACKER Log your flight hours and automatically check your progress against Part 61 requirements for each certificate. Color-coded progress bars show exactly where you stand. Built for serious student pilots who want to pass — not just practice. see terms and conditions. http://Sky-bound.app/terms

Screenshots

Private Pilot Test Prep4 screens
Sky4 screens

Verdict

The call

The clearest difference is ratings volume: Private Pilot Test Prep at 1.5K against Sky's 1. On price, rating, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Private Pilot Test Prep sells 4 one-off in-app purchases and Sky sells 2 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Sky holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Private Pilot Test Prep has 1.5K ratings behind it against 1, so its average is the more settled of the two.

Scorecard1 real difference · 9 level
Private Pilot Test Prep versus Sky: the parameters behind the verdict, then further details
ParameterPrivate Pilot Test PrepSky
PriceFreeFree
Rating4.8 (1.5K ratings)5.0 (1 ratings) — better
Positive reviews84.7% of reviews—
Number of ratings1.5K — better1
Update frequencyFortnightly—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.1 — better18.2
Further details — not scored
Size122 MB26 MB
Age rating12+4+
DeveloperAeroapps TechnologyJeffrey Yost

Bugs and requests

Private Pilot Test Prep

Reported bugs

4 issues
  • Grading issues and incorrect marking of answers
  • Frequent app updates required, causing issues for users with poor internet
  • Inability to review missed questions after exiting the app
  • Crashes and login issues reported

Requested features

8 requests
  • Add sound when choosing correct answers
  • Provide separate guides for each chapter
  • Offer 50-question practice tests by chapter
  • Allow users to pause and resume simulated tests
  • Provide a bank of all practice tests and simulated tests
Show 3 more
  • Display passed section grades to track progress
  • Add a lock zoom feature for charts
  • Integrate a protractor tool

Sky

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Private Pilot Test Prep

One-time4
  • Private Pilot Course TrialFree
  • Private Pilot Test Prep$49.99
  • Upgrade to Ground School$99.99
Show 1 more
  • Private Pilot Ground School$149.99
2 purchases

Sky

Subscriptions2
  • Sky-Bound Pro Monthly$19.991 Month
  • Sky-Bound Pro Yearly$119.991 Year

Questions

Is Private Pilot Test Prep free?
Private Pilot Test Prep is free to download, with in-app purchases available.
Is Sky free?
Sky is free to download, with in-app purchases available.
Which has better reviews, Private Pilot Test Prep or Sky?
Sky is rated higher. Private Pilot Test Prep averages 4.8 out of 5 from 1.5K ratings, while Sky averages 5.0 from 1 ratings.
Do Private Pilot Test Prep or Sky have ads?
Neither Private Pilot Test Prep nor Sky shows ads.

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