Comparison

C172S Pad vs Flight Test X20

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

Head to head
About

C172S Pad

This flight computer app calculates mass and balance, and performance data for the Cessna 172 S aircraft. It allows users to experiment with various flight parameters and generate detailed reports for flight planning. Optimized for iPad Retina displays, it offers immediate results with high-resolution graphics.

Highlights
  • Mass & Balance calculations
  • Takeoff and Landing distance computation
  • Climb performance analysis
  • Optimal cruise altitude determination
  • Stall speed calculation
  • Wind components computer
  • Load manifest generation
Read full description

Gyronimo Performance Pad -Cessna 172 S- The ultimate flight computer for Mass & Balance and Performance. Calculate and interpolate performance data using the actual values from the Cessna 172 S Pilot's Operating Handbook. (Note - this app does not provide updated POH data. For flight planning, always use the original POH of the airplane you will be flying) Performance Results are updated immediately and displayed in high-resolution graphics, enhanced for the iPad Retina displays. 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, climb data and stall speeds. The Performance Pad C172S 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 your flight. 2. The Takeoff Page Using the actual data from the C172S 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 grass or extra factors up to 100%) - 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 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 input Reserve Time for Contingency, Alternate and Final Reserve. The Fuel Usage is displayed graphically. 5. Landing Page Calculates Ground Roll and Landing Distance based on wind, elevation, altimeter setting etc. Use the Wind Components Computer to quickly determine head- or tailwind components 6. Stall Speed Page. Calculates The Stall Speed based on Bank Angle and Flap Settings. Stall Speed will be computed as KIAS and KCAS using the actual values from the Cessna POH. 7. Setup - Load and Save up to five Aircraft Settings and Scenarios. - Send a Mass & Balance Summary to your email address. - Visit our video channel and watch tutorials and video manuals. Disclaimer: The Gyronimo Performance Pad is a student, professional pilot, ​and flight instructor assistance tool for plausibility checks and flight training only. All graphics and data provided in this application are used as examples. For flight planning the ORIGINAL Pilot’s Operating Handbook must be used! Performance values can vary significantly with aircraft or environmental conditions and also with your pilot skills. Always consider safety margins for you and the aircraft you are flying.

About

Flight Test X20

Prepare for FAA knowledge tests with this comprehensive study platform. It offers top-off preparation for various pilot and aviation professional written exams, including instrument rating and ATP.

Highlights
  • FAA knowledge test preparation
  • Pilot study course
  • Dispatcher study course
  • Instrument rating preparation
  • Instructor written test prep
  • ATP written test prep
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Flight Test X20 is Sheppard Air's latest student study course learning platform for FAA knowledge tests. It allows those students studying for pilot, dispatcher, instrument rating, instructor, flight engineer, ATP, and interviewee written tests to do their top-off preparation for the final knowledge test.

Verdict

The call

The clearest difference is price: Flight Test X20 at Free against C172S Pad's $19.99. Flight Test X20 also leads on ratings volume (96 vs 5). C172S Pad's advantage is rating (4.4 vs 3.9) and review sentiment (75% vs 60%). On update cadence, ads, in-app purchases and device support 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

Flight Test X20 is free to download; C172S Pad costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

C172S Pad holds the better App Store score, 4.4 against 3.9. That said, the two scores are not equally well evidenced: Flight Test X20 has 96 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 75% of C172S Pad's written reviews are positive against 60% of Flight Test X20's.

UpkeepUpdate frequency

C172S Pad ships an update every 2 months, Flight Test X20 every 5 weeks. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
C172S Pad versus Flight Test X20: the parameters behind the verdict, then further details
ParameterC172S PadFlight Test X20
Price$19.99Free — better
Rating4.4 (5 ratings) — better3.9 (96 ratings)
Positive reviews75.0% of reviews — better60.0% of reviews
Number of ratings596 — better
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPadiPad
Requires iOS9.1 — better14.0
Further details — not scored
Size30 MB25 MB
Age rating4+4+
DeveloperGyronimo, LLCSheppard Air, Inc.

Customer experience

C172S Pad

All ratings5 ratings
Positive80.0%
Neutral20.0%
Negative0.0%
Written reviews12 reviews
Positive75.0%
Neutral16.7%
Negative8.3%

Flight Test X20

All ratings93 ratings
Positive67.7%
Neutral8.6%
Negative23.7%
Written reviews45 reviews
Positive60.0%
Neutral13.3%
Negative26.7%

In-app purchases

None

C172S Pad

No in-app purchases

None

Flight Test X20

No in-app purchases

Questions

Is C172S Pad free?
C172S Pad costs $19.99, with no in-app purchases.
Is Flight Test X20 free?
Flight Test X20 is free to download, with no in-app purchases.
Which has better reviews, C172S Pad or Flight Test X20?
C172S Pad is rated higher. C172S Pad averages 4.4 out of 5 from 5 ratings, while Flight Test X20 averages 3.9 from 96 ratings.
Do C172S Pad or Flight Test X20 have ads?
Neither C172S Pad nor Flight Test X20 shows ads.
Which is updated more often, C172S Pad or Flight Test X20?
C172S Pad ships an update every 2 months, and Flight Test X20 every 5 weeks. Most recently, C172S Pad was updated on October 11, 2026 and Flight Test X20 on October 24, 2026.

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