Comparison

Q Code vs Nav Trainer Pro

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

Head to head
About

Q Code

Decode aviation Notam Q-codes quickly and easily. Enter the four letters following 'Q' to instantly see the Notam Subject, Component, and Condition codes. Essential for pilots and aviation enthusiasts.

Highlights
  • Q-Code decoding
  • Notam Subject lookup
  • Component code display
  • Condition code display
  • Simple interface
Features
Read full description

Aviation Notam Q-Code decoder. Simply enter the four letters following the Q and the program will display the associated Notam Subject, Component and Condition codes.

About

Nav Trainer Pro

Practice aviation navigational equipment on your mobile device. Simulates VOR, HSI, RMI, ADF, DME, and ILS navigation. Ideal for student pilots, instructors, and flight simulator enthusiasts to improve IFR orientation skills and situational awareness.

Highlights
  • Simulates VOR, HSI, RMI, ADF, DME, and ILS navigation
  • Dual navigation displays
  • VOR/NDB trainer screen
  • ILS trainer
  • DME visualization screen
  • Test mode for situational awareness
  • Drag and drop aircraft and nav fix
Features
Currently charting
Read full description

Selected by AOPA.org readers as number one of five aviation apps you can't live without! * ***** Reached No. 4 in the Navigation category of the U.S. app store for iPad! ***** Make IFR flight training easier! Practice the use of aviation navigational equipment on your mobile device. Simulates VOR, HSI, RMI, ADF, DME and ILS navigation. A must have tool for any CFII, student and instrument pilot! -Students and pilots: improve your understanding of radio instrument navigation at the comfort of your own mobile device. -Instructors: demonstrate complex IFR concepts to your students from bird's-eye view while on the ground. -Also suitable for flight simulator enthusiasts. Used in classrooms, one-on-one ground sessions and by individuals to improve their IFR orientation skills. -------------------------------------- -user reviews (from all markets) ***** Great to study instruments and saves lots of $$$!!!" "***** I have been looking for an app such as this to teach my students" "***** Before I used this app all this VOR orientation was so complicated, and now it's clear as ice!" "***** Easy to use, perfectly designed and helping to understand basic navigation stuff. Highly recommended for student pilots, instrument applicant and CFI's." - Improve your situational awareness under IFR. - Save time and money on your instrument and initial flight training. - Prepare for your instrument rating or proficiency check. - Test your NAV situational awareness with the test mode. - Flight instructors: the perfect tool to help you easily explain and demonstrate complex radio navigation concepts to your students. ***Features:*** -Dual navigation displays. -VOR\NDB trainer screen: Simulates VOR and NDB navigation using VOR, HSI, ADF and RMI displays. -ILS trainer with both VOR and HSI displays. -DME visualization screen - demonstrates how DME slant range distance is affected by ground distance and altitude. -Test mode - generates phantom aircraft around the navaids. Your goal is to find the correct aircraft position. -Drag and drop the aircraft and nav fix around the screen. -Fly! mode - Make the airplane fly around the screen. great for practicing intercepting and tracking courses. -Wind direction & velocity control. -Aircraft tracing (contrail mode). -Accelerator support for aircraft control. How to use: -Select the various instruments by double-tapping their dials. -Toggle VOR sectors visualization on/off. -Auto tune OBS by pressing the OBS knob. -Auto turn the aircraft towards the nav fix by tapping the aircraft symbol. Double tap will turn the aircraft toward NAV station #2 -Change aircraft headings by flicking your finger over the heading indicator. -Tune the OBS by dragging your finger around the HSI/VOR displays or over the OBS knob. --------------------------------------- The developer is a Gold Seal CFI/CFII/MEI and part 121 airline pilot --------------------------------------- For comments, feature requests or bug reports, if you have the app, please take the survey at http://bit.ly/hCAqgF * (https://www.aopa.org/news-and-media/all-news/2013/february/26/five-more-aviation-apps-you-cant-live-without) **If you experience any problem with the app, please contact me before leaving a review and I will do my best to solve it for you.**

Screenshots

Q Code1 screens
Nav Trainer Pro4 screens

Verdict

The call

The clearest difference is price: Q Code at Free against Nav Trainer Pro's $8.99. Nav Trainer Pro's advantage is rating (3.9 vs 3.0) and ratings volume (37 vs 2). On review sentiment, 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

Q Code is free to download; Nav Trainer Pro costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Nav Trainer Pro holds the better App Store score, 3.9 against 3.0. That said, the two scores are not equally well evidenced: Nav Trainer Pro has 37 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 80% of Q Code's written reviews are positive against 74% of Nav Trainer Pro's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Q Code ships an update every 5 months, Nav Trainer Pro every 3 months. The most recent releases landed on September 30, 2026 and October 5, 2026 respectively.

Scorecard6 real differences · 5 level
Q Code versus Nav Trainer Pro: the parameters behind the verdict, then further details
ParameterQ CodeNav Trainer Pro
PriceFree — better$8.99
Rating3.0 (2 ratings)3.9 (37 ratings) — better
Positive reviews80.0% of reviews — better73.6% of reviews
Number of ratings237 — better
Update frequencyEvery 5 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#98 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.611.0 — better
Further details — not scored
Size4 MB13 MB
Age rating4+4+
DeveloperLonnie GanzFLEMINGER MEDIA LLC

Customer experience

Q Code

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Nav Trainer Pro

All ratings37 ratings
Positive73.0%
Neutral5.4%
Negative21.6%
Written reviews125 reviews
Positive73.6%
Neutral8.8%
Negative17.6%

In-app purchases

None

Q Code

No in-app purchases

None

Nav Trainer Pro

No in-app purchases

Questions

Is Q Code free?
Q Code is free to download, with no in-app purchases.
Is Nav Trainer Pro free?
Nav Trainer Pro costs $8.99, with no in-app purchases.
Which has better reviews, Q Code or Nav Trainer Pro?
Nav Trainer Pro is rated higher. Q Code averages 3.0 out of 5 from 2 ratings, while Nav Trainer Pro averages 3.9 from 37 ratings.
Do Q Code or Nav Trainer Pro have ads?
Neither Q Code nor Nav Trainer Pro shows ads.
Which is updated more often, Q Code or Nav Trainer Pro?
Q Code ships an update every 5 months, and Nav Trainer Pro every 3 months. Most recently, Q Code was updated on September 30, 2026 and Nav Trainer Pro on October 5, 2026.

Other comparisons