Comparison

FAA ATP Written Test Prep vs IFR Trainer Flight Instruments

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

Head to head
About

FAA ATP Written Test Prep

Prepare for FAA Airline Transport Pilot and Aircraft Dispatcher written exams with a comprehensive database of current questions and detailed explanations. Study actual FAA questions and ace your tests with flexible study modes and up-to-date content.

Highlights
  • Actual FAA questions
  • Up-to-date content with free updates
  • Detailed, illustrated explanations
  • Compatible with FAA ACS
  • Flexible study modes
  • Covers ATP and ADX tests
Features
Read full description

Spend less time studying and more time flying! This is the FAA Airline Transport Pilot (ATP Part 121, ATP Part 135, and Helicopter) and Aircraft Dispatcher (ADX) version of GroundSchool, our FAA knowledge (written) test preparation featuring up-to-date questions, free updates, and illustrated explanations written by a professional team of pilot examiners and instructors. GroundSchool is fully compatible with FAA ACS (Airman Certification Standards) and our editorial team is working to keep it so as ACS continues to evolve. Don't be fooled by imitators! Competing apps here in the AppStore use only the limited set of questions that the FAA publicly releases via its website - that is not enough to adequately prepare you for your test! Our GroundSchool app, on the other hand, features a much more comprehensive database (typically about 2-4 times the size of the demo FAA public one) of actual and current FAA questions that you likely can and will be asked on the actual test! This along with our detailed, professional explanations and easy to use interface are major reasons why pilots have come to trust GroundSchool. Study actual, up-to-date FAA questions and then ACE your FAA ATP written test the easy way with GroundSchool FAA Knowledge Test Preparation software by Dauntless Aviation, the trusted leader in FAA written test preparation. Features: * Actual FAA Questions Current and Valid for Right Now. As soon as you install the software, use the 'update' feature and the software will connect to our servers, grab the latest questions, images, figures, and explanation content, and you'll be good to go. * Detailed Explanations written by an experienced editorial team of examiner and instructor pilots. * All Charts and Figures Included * Several flexible study modes - fits the way you want to study! * Compatible with all FAA "ground school" classroom-based courses This ATP/ADX version of GroundSchool will prepare you for any or all of the following tests: * ATP - Airline Transport Pilot Airplane (Part 121) * ATA - Airline Transport Pilot Airplane (135) * ATH - Airline Transport Pilot Helicopter (135) * ADX - Aircraft Dispatcher * ARA - Airline Transport Pilot Airplane (135) (added rating) * ARH - Airline Transport Pilot Helicopter (135) (added rating) * Canadian Airline Transport Pilot to USA FAA Conversion With Dauntless Aviation's GroundSchool, you don't need to worry: * Our material is UP TO DATE. No matter what date is listed here in regarding the 'Release date', this date refers to the program itself only. Once you get the program on your device, use the built-in update feature and it will connect to our servers and download the latest and greatest version of the test prep content and our explanations that we have available. To learn more about this, please visit our website. * We pride ourselves on the quality of our explanations. This is not some idle boast - our explanations are more detailed and more illustrated than that of ANY other FAA knowledge test provider, period. * Tens of thousands of people have used our products to prepare for their FAA knowledge tests. Ours is a system that works. ATP 121 or 135? Some airplane pilots are not sure whether they should take the Part 121 or the Part 135 tests. In short, from the FAA's perspective, it doesn't matter - study for the one that is most interesting to you and perhaps the one that you envision as most relevant to your future career. for a more detailed description of this, please see our website. Remember, this software allows you to study both 121 and 135 and jump between them (and the other ATP tests) as you'd like with no restrictions. Good luck on your test!

About

IFR Trainer Flight Instruments

Master instrument flying with this comprehensive trainer. It offers interactive modules and a simulator for navigation instruments, procedures, and holding patterns. Ideal for student pilots and instructors preparing for instrument ratings.

Highlights
  • Interactive navigation instrument modules
  • IFR procedure simulator
  • Holding pattern practice
  • Step-by-step learning
  • Animations and exercises
  • Built-in IFR simulator
Features
Read full description

Master instrument flying with this all-in-one IFR trainer. Includes interactive modules for ADF/RMI (FREE), VOR/ILS, HSI, IFR procedures and holding patterns. Ideal for student pilots and flight instructors preparing for instrument rating (IR). • Learn & practice navigation instruments step-by-step • Use animations and interactive exercises • Train with our built-in IFR simulator • Practice real-world holding entries (parallel, teardrop, direct) ### Modules: 1. ADF/RMI Instructor (Free Trial) 2. VOR + ILS Instructor 3. HSI Trainer 4. IFR Procedure Simulator 5. Holding Pattern Instructor Whether you're preparing for your checkride, IR test, or just want to improve situational awareness, this app helps you fly safer and smarter. Designed by pilots, for pilots. ▶ Try the ADF/RMI module for free! ▶ Trusted by aviation schools worldwide. FlyGo Aviation – Elevate Your IFR Skills.

Screenshots

FAA ATP Written Test Prep4 screens
IFR Trainer Flight Instruments4 screens

Verdict

The call

The clearest difference is price: IFR Trainer Flight Instruments at Free against FAA ATP Written Test Prep's $79.99. IFR Trainer Flight Instruments also leads on ratings volume (960 vs 19). FAA ATP Written Test Prep's advantage is review sentiment (74% vs 52%) and iOS requirement (9.0 vs 18.6). On rating, update cadence, 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

IFR Trainer Flight Instruments is free to download; FAA ATP Written Test Prep costs $79.99 up front. FAA ATP Written Test Prep sells 1 one-off in-app purchase and IFR Trainer Flight Instruments sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for FAA ATP Written Test Prep against 4.5 for IFR Trainer Flight Instruments. That said, the two scores are not equally well evidenced: IFR Trainer Flight Instruments has 960 ratings behind it against 19, so its average is the more settled of the two. Written reviews are what separate them: 74% of FAA ATP Written Test Prep's written reviews are positive against 52% of IFR Trainer Flight Instruments's.

UpkeepUpdate frequency

FAA ATP Written Test Prep ships an update monthly, IFR Trainer Flight Instruments every 6 weeks. The most recent releases landed on November 10, 2026 and November 11, 2026 respectively.

Scorecard4 real differences · 6 level
FAA ATP Written Test Prep versus IFR Trainer Flight Instruments: the parameters behind the verdict, then further details
ParameterFAA ATP Written Test PrepIFR Trainer Flight Instruments
Price$79.99Free — better
Rating4.5 (19 ratings)4.5 (960 ratings) — better
Positive reviews74.5% of reviews — better52.2% of reviews
Number of ratings19960 — better
Update frequencyMonthly — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better18.6
Further details — not scored
Size705 MB155 MB
Age rating4+4+
DeveloperDauntless SoftwareFlygo-Aviation Ltd

Customer experience

FAA ATP Written Test Prep

All ratings19 ratings
Positive89.5%
Neutral0.0%
Negative10.5%
Written reviews47 reviews
Positive74.5%
Neutral4.3%
Negative21.3%

IFR Trainer Flight Instruments

All ratings959 ratings
Positive89.2%
Neutral3.2%
Negative7.6%
Written reviews113 reviews
Positive52.2%
Neutral6.2%
Negative41.6%

In-app purchases

1 purchases

FAA ATP Written Test Prep

One-time1
  • Audio Review$18.99
6 purchases

IFR Trainer Flight Instruments

One-time6
  • Holding Instructor$5.99
  • VOR+ILS Instructor$9.99
  • HSI Instructor$9.99
Show 3 more
  • IFR Simulator$11.99
  • All in one$31.99
  • All in one$37.99

Questions

Is FAA ATP Written Test Prep free?
FAA ATP Written Test Prep costs $79.99, and also offers in-app purchases.
Is IFR Trainer Flight Instruments free?
IFR Trainer Flight Instruments is free to download, with in-app purchases available.
Which has better reviews, FAA ATP Written Test Prep or IFR Trainer Flight Instruments?
IFR Trainer Flight Instruments is rated higher. FAA ATP Written Test Prep averages 4.5 out of 5 from 19 ratings, while IFR Trainer Flight Instruments averages 4.5 from 960 ratings.
Do FAA ATP Written Test Prep or IFR Trainer Flight Instruments have ads?
Neither FAA ATP Written Test Prep nor IFR Trainer Flight Instruments shows ads.
Which is updated more often, FAA ATP Written Test Prep or IFR Trainer Flight Instruments?
FAA ATP Written Test Prep ships an update monthly, and IFR Trainer Flight Instruments every 6 weeks. Most recently, FAA ATP Written Test Prep was updated on November 10, 2026 and IFR Trainer Flight Instruments on November 11, 2026.

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