Comparison

C172M vs BZF

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

Head to head
About

C172M

This app calculates mass, balance, and performance data for the Cessna 172M aircraft using actual Pilot's Operating Handbook values. It helps pilots plan flights quickly by determining optimal cruise altitudes, takeoff and landing distances, climb data, and stall speeds.

Highlights
  • Mass & Balance calculations
  • Takeoff and Landing performance
  • Climb data calculation
  • Optimal cruise altitude determination
  • Stall speed calculation
  • Save and load aircraft settings
  • Email load manifest
Read full description

Gyronimo Performance Pad -Cessna 172M- The ultimate computer for Mass & Balance and Performance. Compatibility: requires iPad 2 or newer, or iPad Mini Retina Now with support for Standard and Long Range Tanks! Calculate and interpolate performance data using the actual values from the Cessna 172M 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, climb data and stall speeds. The Performance Pad C172M 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. 2. The Takeoff Page Using the actual data from the C172M 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 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 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. 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. Mode Switch: The Performance Pad can be used in two Modes: "Individual Mode" All calculations can be done independently from each other. "Plan Mode" Calculated values will be forwarded to the next page and an additional "Flight Summary Page" is available. Choose this mode if you want to do a complete performance planning. 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.

About

BZF

Features
Read full description

This app features not only the official questions from Bundesnetzagentur, but also several pages of theory materials summarized, to help you learn and understand fundamental concepts needed for your success in aviation and of course on the BZF exam. Learn and practice for the exam on the same app, while tracking your progress on each question individually. - Multilingual App and content - In-App theoretical training materials - Advanced question study interface, allowing random order and seeing only the correct answer for better memorization - Realistic exam mode, but with pause function in case you need a coffee break - Individual question statistics - No internet connection needed Limited number of questions and study materials in Trial Version. Upgrade to Full Version with a single, one-time, in-App purchase.

Screenshots

BZF4 screens

Verdict

The call

The clearest difference is price: BZF at Free against C172M's $13.99. BZF also leads on update cadence (every 2 weeks vs every 7 months) and device support (3 vs 1). C172M's advantage is in-app purchases (none vs 1). On ads and iOS requirement 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

BZF is free to download; C172M costs $13.99 up front. BZF sells 1 one-off in-app purchase. C172M asks for nothing beyond the download.

UpkeepUpdate frequency

C172M ships an update every 7 months, BZF every 2 weeks. The most recent releases landed on July 28, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 6 level
C172M versus BZF: the parameters behind the verdict, then further details
ParameterC172MBZF
Price$13.99Free — better
Rating3.0 (2 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings2 — better—
Update frequencyEvery 7 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPadiPhone, iPad, iPod — better
Requires iOS14.013.4 — better
Further details — not scored
Size27 MB34 MB
Age rating4+17+
DeveloperGyronimo, LLCTelmo Dias

In-app purchases

None

C172M

No in-app purchases

1 purchases

BZF

One-time1
  • Upgrade to Full Version$17.99

Questions

Is C172M free?
C172M costs $13.99, with no in-app purchases.
Is BZF free?
BZF is free to download, with in-app purchases available.
Do C172M or BZF have ads?
Neither C172M nor BZF shows ads.
Which is updated more often, C172M or BZF?
C172M ships an update every 7 months, and BZF every 2 weeks. Most recently, C172M was updated on July 28, 2026 and BZF on September 20, 2026.

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