Comparison

C172 Performance vs NemoScoutApp

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

Head to head
About

C172 Performance

This app calculates essential flight performance data for Cessna 172 and 150 aircraft. It covers takeoff, landing, climb, cruise, descent, instrument procedures, and emergencies, with additional tools for holds and glide calculations. Cloud sync ensures your flight plans are accessible across devices.

Highlights
  • Takeoff and landing calculations
  • Climb, cruise, and descent performance
  • Instrument procedure planning
  • Emergency scenario calculations
  • Interactive hold calculator
  • Emergency glide distance calculator
  • Cloud sync for flight plans
Features
Read full description

C172 Performance computes all the useful performance numbers for flight planning for Cessna model 172 and 150 aircraft. It includes calculations for takeoff, landing, climb, cruise, descent, instrument procedures as well as emergencies. It also includes an interactive hold calculator, a risk analysis tool, and an emergency glide distance calculator that handles head and tailwinds. C172 Performance is also available on other mobile devices and as a WebApp (an App that runs in a browser) that runs on a variety of platforms (PC, Mac, tablets, phones). The cloud sync feature allows flight planning profiles entered on any device to be synchronized with your other devices when connected to the Internet. C172 Performance is a free, open-source development effort and has Apps and WebApps for other aircraft. See http://pohperformance.com for complete details.

About

NemoScoutApp

This app provides real-time collision avoidance and traffic display for pilots, supplementing a separate transponder device. It offers visual and audible alerts for potential conflicts and displays critical flight data for backup.

Highlights
  • Real-time traffic display with TCAS-like interface
  • Visual and audible collision avoidance alerts
  • Backup flight instrument data display
  • Integrated airport, obstacle, and airspace databases
  • Weather information display (METAR)
  • GDL90 GPS and traffic data export to EFB apps
Features
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NemoScoutApp is a companion app to the NemoScout transponder (sold separately) -a matchbox sized portable WAAS GPS with built-in collision avoidance transponder and tracker- utilized by flight schools and individuals to improve situational awareness and pilot decision making. It enables flight schools to track the position of all NemoScout equipped aircraft in their fleet in real-time. Track logs are stored on SD card in standard G1000 format and can be used with debriefing tools such as CloudAhoy. The app provides for a visual display of the traffic surrounding your present position using a TCAS-like display. Traffic is identified by triangles on top of a moving map that indicate the direction and altitude difference of any conflicting aircraft. Visual and audible warnings are provided when conflicting aircraft breach minimum clearance distances configured in the app. Different clearance distances for aircraft and obstacles can be applied when traveling en-route or when flying the pattern. The app can also be utilized to display ground speed, altitude, heading, vertical speed, attitude and rate of turn for back up purposes to your main instruments. Ground speed, vertical speed and altitude are obtained from the integrated WAAS GPS. Heading and attitude are obtained from the integrated AHRS sensor. The app includes an integrated airport database, obstacle database and airspace database that is updated every 56 days. The airport database (North America only) identifies all registered open-to-the-public aerodromes (grass or paved). Airports with weather available are identified in red and can be tapped to reveal the local METAR. Weather is received either over-the-air (for equipped aerodromes) or over the Internet (requires a 3G/4G/LTE connection). The obstacle database (North America only) contains most man-made obstacles taller than 200ft above the ground, including communication towers and windmills. The airspace database (North America only) identifies all control zones (CZ), terminal control areas (TCA), restricted CYA and CYR areas and all associated height restrictions. The app can be utilized to send GDL90 compatible GPS position and traffic information to compatible EFB apps (operating on the same WiFi access point), including ForeFlight, WingX, FltPlan Go, FlyQ EFB, iFly GPS and others. Note that attitude information is displayed in most EFB apps, with the exception of ForeFlight.

Screenshots

C172 Performance4 screens
NemoScoutApp4 screens

Verdict

The call

The clearest difference is review sentiment: C172 Performance at 90% against NemoScoutApp's 0%. NemoScoutApp's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 18, 2026 and September 16, 2026 respectively.

Scorecard3 real differences · 7 level
C172 Performance versus NemoScoutApp: the parameters behind the verdict, then further details
ParameterC172 PerformanceNemoScoutApp
PriceFreeFree
Rating4.9 (52 ratings) — better—
Positive reviews90.0% of reviews — better0.0% of reviews
Number of ratings52 — better—
Update frequencyEvery 2 monthsEvery 2 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size15 MB15 MB
Age rating4+4+
DeveloperPOH Performance L.L.C.Stephan Edelman

Customer experience

C172 Performance

All ratings52 ratings
Positive98.1%
Neutral0.0%
Negative1.9%
Written reviews30 reviews
Positive90.0%
Neutral3.3%
Negative6.7%

NemoScoutApp

Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

C172 Performance

No in-app purchases

None

NemoScoutApp

No in-app purchases

Questions

Is C172 Performance free?
C172 Performance is free to download, with no in-app purchases.
Is NemoScoutApp free?
NemoScoutApp is free to download, with no in-app purchases.
Do C172 Performance or NemoScoutApp have ads?
C172 Performance shows ads; NemoScoutApp does not.
Which is updated more often, C172 Performance or NemoScoutApp?
C172 Performance ships an update every 2 months, and NemoScoutApp every 2 months. Most recently, C172 Performance was updated on September 18, 2026 and NemoScoutApp on September 16, 2026.

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