C172M vs HSI + ILS Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
HSI + ILS Trainer
Master core radio-navigation skills for instrument flight training. This app offers interactive lessons and practice drills for HSI and ILS interpretation, intercepts, and tracking. It includes a built-in HSI simulator for briefings and classroom use, designed with flight instructors.
- HSI interpretation and course setting
- ILS localizer and glideslope tracking
- Intercept and correction practice
- Interactive lessons for quick learning
- IFR drills and scenarios
- Built-in HSI simulator
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Train HSI and ILS the right way. HSI + ILS Trainer – IFR Pilot helps instrument students, IR candidates and instructors learn, practice and retain core radio-nav skills. ### What you’ll master - HSI (Horizontal Situation Indicator): interpretation, course setting, CDI deflection, TO/FROM, intercepts. - ILS (Instrument Landing System): localizer & glideslope tracking, intercepts, corrections and stabilization. ### Why pilots use it - Interactive lessons to grasp the basics fast. - IFR drills & scenarios to turn knowledge into muscle memory. - Built-in HSI simulator ideal for briefings, homework and classroom use. Designed and reviewed with flight instructors to ensure practical, checkride-ready training quality. Enjoy the app & FLY SAFE!
Screenshots
Verdict
The clearest difference is rating: HSI + ILS Trainer at 5.0 against C172M's 3.0. HSI + ILS Trainer also leads on review sentiment (100% vs 67%) and price ($9.99 vs $13.99). C172M's advantage is iOS requirement (14.0 vs 18.6). On ratings volume, ads, in-app purchases and monetization model 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
C172M costs $13.99 and HSI + ILS Trainer $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
HSI + ILS Trainer holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 67% of C172M's written reviews are positive against 100% of HSI + ILS Trainer's.
C172M ships an update every 7 months, HSI + ILS Trainer every 3 months. Both last shipped on November 1, 2026.
| Parameter | C172M | HSI + ILS Trainer |
|---|---|---|
| Price | $13.99 | $9.99 — better |
| Rating | 3.0 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 7 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 14.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 27 MB | 151 MB |
| Age rating | 4+ | 4+ |
| Developer | Gyronimo, LLC | Flygo-Aviation Ltd |
Customer experience
C172M
HSI + ILS Trainer
In-app purchases
C172M
No in-app purchases
HSI + ILS Trainer
No in-app purchases
Questions
Is C172M free?
Is HSI + ILS Trainer free?
Which has better reviews, C172M or HSI + ILS Trainer?
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