Comparison

Instrument Pilot Test Prep vs DA40 NG

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

Head to head
About

Instrument Pilot Test Prep

Prepare for your FAA Instrument Rating knowledge test with study questions, flashcards, and practice tests. Access all figures offline and track your progress by topic. Designed for iPhone and iPad.

Highlights
  • Study questions by topic
  • Flashcard review
  • Randomized practice tests
  • Offline figure access
  • Progress tracking
  • Resume study sessions
Features
Read full description

Sporty's Study Buddy prepares you for the FAA Instrument Rating knowledge test (the "written") with three ways to study: Study Questions, Flashcards and Practice Tests. Questions are organized by knowledge area, with explanations of the right and wrong answers developed by Sporty's team of Master CFIs, based on their experience preparing students for the Instrument Rating. • STUDY QUESTIONS BY TOPIC • Choose whole knowledge areas or individual topics to build your own study session. As soon as you answer, you'll see the correct answer, why it's right, and where to read more. Change your answer anytime, bookmark questions as you go, and jump to any question from the question list. Every study session is shuffled. • REVIEW WITH FLASHCARDS • Flashcards show just the question, so you answer from memory before revealing the correct answer and its explanation. Mark each card Know It or Still Learning, then start a new session from the cards you're still learning. On iPhone Duo, study a card with the phone open and close it to check the answer. • TAKE PRACTICE TESTS • Each Practice Test draws 60 questions at random from the full question bank, gives you 2 hours, and is graded at the FAA's 70% passing score. Afterward, see your score by topic, review every question or only the ones you missed, and turn your misses into a new study session. • PICK UP WHERE YOU LEFT OFF • Sessions save as you go. The History tab lets you resume any session in progress and review past results, including your scores by topic. • EVERY FIGURE, OFFLINE • The Figures tab includes the complete FAA Airman Knowledge Testing Supplement for Instrument Rating, with every figure and legend listed by name and page. Swipe through the pages or open any one full screen. Questions show their figures right alongside, and you can study without a connection. Designed for iPhone, iPhone Duo and iPad, with Dark Mode and support for larger text sizes. The FAA does not publish its knowledge test questions, so the questions on your test won't necessarily appear in this app. Study Buddy is meant to complement your training, not to replace flight and ground instruction.

About

DA40 NG

This app calculates mass, balance, and performance data for the Diamond DA40 NG aircraft. It helps pilots plan flights quickly by interpolating data from the Pilot's Operating Handbook, offering detailed graphics and scenario planning.

Highlights
  • Mass & Balance calculations
  • Takeoff and Landing performance
  • Climb performance analysis
  • Cruise performance optimization
  • Fuel management and efficiency
  • Wind component calculation
  • Scenario planning with sliders
Read full description

Gyronimo Performance Pad -Diamond DA40 New Generation- The ultimate computer for Mass & Balance and Performance. Based on Flight Manual and data for : DA40 NG, Rev 3, July 2014, MTOW 1280kg With option for long range or standard tanks. Calculate and interpolate performance data using the actual values from the Diamond DA40NG Pilot's Operating Handbook (POH). Finish your complete fight planning in just a few seconds. Performance planning has never been easier and quicker. Results are updated immediately and displayed in high resolution graphics, enhanced for the iPad 2/3 and iPad Mini. Change all important values using sliders. Experiment with the results and create "what if" scenarios in no time. Find your optimal cruise altitude, takeoff ground roll, landing distance, and climb rate. The Performance Pad Diamond DA40NG has seven main pages: 1. The Mass & Balance (or Weight & Balance) Page Calculates Center of Gravity, Moments, Takeoff and Zero Fuel Mass as well as Percent MAC (% MAC). Set person and baggage weights in seconds using the convenient sliders. Check if the CG is within limits using three graphical displays - Moment Envelope - CG envelope - Aircraft axis or see a complete load manifest that you can send to your email address to quickly prove that you have completed the Weight & Balance for you flight. - Send a Mass & Balance Summary to your email address. 2. The Takeoff Page Using the actual data from the Operating Handbook the Performance Pad calculates and displays Ground Roll and Landing Distance based on: - Aircraft Mass - Takeoff Elevation in MSL (Pressure Altitude and Density Altitude will be computed) - Outside Air Temperature (OAT) - Altimeter Setting - Runway Conditions (i.e. paved dry to long grass or snow) - Runway Slope - Wind Conditions Wind Components Computer - Use the Wind Components page to determine your headwind or tailwind component. Rotate the wind dial to set wind direction, set windspeed and the results will be transferred to your takeoff computations automatically! 3. The Climb page Calculates time, fuel and distance based on - Difference between Takeoff Elevation and intended Flight Level - Altimeter Setting - Outside Air Temperature (OAT) - Altimeter Setting - Headwind or Tailwind Component Also the Rate of Climb and Climb Speed will be displayed. 4. The Cruise Page Using the actual data from the Pilot's Operating Handbook you can determine the optimal cruise altitude based on - Trip Distance - Flight Level - Engine RPM - Temperature - Wind and Altimeter Setting and calculate Break Horse Power (% BHP), Fuel Flow and True Airspeed The Max Range and Range including Reserve will be displayed graphically. The Fuel Management allows to enter Reserve Time for Contingency, Alternate and Final Reserve. The Fuel Usage is displayed graphically. Fuel Efficiency is computed in Miles per Gallon and Liter per 100km to set set results in a perspective. 5. Landing Page Calculates Ground Roll and Landing Distance based on wind, elevation, altimeter setting etc. Like on the Takeoff Page you can use the Wind Components Computer to quickly determine head- or tailwind components 6. Load / Save. - Load and Save up to five Aircraft Settings and Scenarios. 7. Setup - Visit our video channel and watch tutorials and video manuals. For iPad 2, iPad 3 (iOS6 recommended) DISCLAIMER: The author disclaims any liability for any direct, indirect, incidental, or consequential losses or damages in connection with your access to or use of this software. The information contained in this software is for general information purposes only.

Screenshots

Instrument Pilot Test Prep4 screens

Verdict

The call

Instrument Pilot Test Prep and DA40 NG both sit at 3.1 stars, but that hides the real split: 100% of DA40 NG's written reviews are positive against 39% of Instrument Pilot Test Prep's. Instrument Pilot Test Prep's advantage is price ($14.99 vs $19.99) and ratings volume (16 vs 2). 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

Instrument Pilot Test Prep costs $14.99 and DA40 NG $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.1 for Instrument Pilot Test Prep against 3.0 for DA40 NG. That said, the two scores are not equally well evidenced: Instrument Pilot Test Prep has 16 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 39% of Instrument Pilot Test Prep's written reviews are positive against 100% of DA40 NG's.

UpkeepUpdate frequency

Instrument Pilot Test Prep ships an update every 5 months, DA40 NG every 4 months. The most recent releases landed on November 10, 2026 and November 1, 2026 respectively.

Scorecard3 real differences · 7 level
Instrument Pilot Test Prep versus DA40 NG: the parameters behind the verdict, then further details
ParameterInstrument Pilot Test PrepDA40 NG
Price$14.99 — better$19.99
Rating3.1 (16 ratings) — better3.0 (2 ratings)
Positive reviews39.3% of reviews100.0% of reviews — better
Number of ratings16 — better2
Update frequencyEvery 5 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad — betteriPad
Requires iOS17.016.0 — better
Further details — not scored
Size92 MB35 MB
Age rating4+4+
DeveloperSporty's Pilot ShopGyronimo, LLC

Customer experience

Instrument Pilot Test Prep

All ratings16 ratings
Positive43.8%
Neutral6.3%
Negative50.0%
Written reviews28 reviews
Positive39.3%
Neutral14.3%
Negative46.4%

DA40 NG

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Instrument Pilot Test Prep

No in-app purchases

None

DA40 NG

No in-app purchases

Questions

Is Instrument Pilot Test Prep free?
Instrument Pilot Test Prep costs $14.99, with no in-app purchases.
Is DA40 NG free?
DA40 NG costs $19.99, with no in-app purchases.
Which has better reviews, Instrument Pilot Test Prep or DA40 NG?
Instrument Pilot Test Prep is rated higher. Instrument Pilot Test Prep averages 3.1 out of 5 from 16 ratings, while DA40 NG averages 3.0 from 2 ratings.
Do Instrument Pilot Test Prep or DA40 NG have ads?
Neither Instrument Pilot Test Prep nor DA40 NG shows ads.
Which is updated more often, Instrument Pilot Test Prep or DA40 NG?
Instrument Pilot Test Prep ships an update every 5 months, and DA40 NG every 4 months. Most recently, Instrument Pilot Test Prep was updated on November 10, 2026 and DA40 NG on November 1, 2026.

Other comparisons