Comparison

Flight Computer Sim vs CX

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

Head to head
About

Flight Computer Sim

This app simulates the E6B slide ruler, a crucial tool for aircraft pilots. It offers high-resolution visuals and smooth controls for precise calculations in conversion and wind correction modes. Experience a realistic feel for essential aviation computations.

Highlights
  • E6B slide ruler simulation
  • High-resolution ruler
  • Smooth rotation and sliding controls
  • Pinch-to-zoom functionality
  • Conversion mode
  • Wind correction modes (low and high speed)
Features
Read full description

An easy and intuitive simulation of the E6B slide ruler used by many aircraft pilots. Features a high resolution ruler with smooth controls for rotating, sliding and pinch zooming, allowing precise calculations. Feels like a real ruler in your hands! All three modes are available: - Conversions - Wind corrections (low speed) - Wind corrections (high speed) For more features, check out Flight Computer Pro.

About

CX

This aviation tool simplifies flight planning for pilots. It offers accurate calculations for time, speed, distance, fuel, and more, along with unit conversions and a built-in calculator. Designed for ease of use, it guides users through flight planning and execution with a natural menu flow.

Highlights
  • Flight planning calculations
  • Time, speed, distance functions
  • Fuel and altitude calculations
  • Unit conversions (12 categories)
  • Weight and balance calculations
  • Holding pattern details
  • Built-in calculator, clock, timer
Currently charting
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Based on the ASA CX-3® Flight Computer for pilots, this CX-3 app makes flight planning simple by taking confusion out of the equation. Fast, versatile and easy to use, the CX-3® delivers accurate results quickly and efficiently. Whether used for flight planning, ground school, or FAA Knowledge Exam preparation, the menu organization reflects the order in which a flight is normally planned and executed, resulting in a natural flow from one function to the next with a minimum of keystrokes. Multiple aviation functions can be performed on the CX-3® flight computer including those related to time, speed, distance, heading, wind, fuel, altitude, cloud base, standard atmosphere, glide, climb & descent, weight & balance, as well as a holding pattern function to help determine entry method and holding details. The CX-3® has 12 unit-conversions: Distance, Speed, Duration, Temperature, Pressure, Volume, Rate, Weight, Rate of Climb/Descent, Angle of Climb/Descent, Torque, and Angle. These 12 conversion categories contain 38 different conversion factors for over 100 functions. A calculator, clock, timer, and stopwatch are also built in along with multiple settings for lighting, backlighting, themes, time zones and more.

Screenshots

Flight Computer Sim3 screens
CX4 screens

Verdict

The call

The clearest difference is review sentiment: Flight Computer Sim at 88% against CX's 36%. Flight Computer Sim also leads on price (Free vs $19.99) and rating (4.8 vs 3.7). CX's advantage is chart position (#51 vs unranked). On ratings volume, 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

Flight Computer Sim is free to download; CX costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Flight Computer Sim holds the better App Store score, 4.8 against 3.7. Both are backed by a comparable volume of ratings — 26 and 11 respectively. Written reviews point the same way: 88% of Flight Computer Sim's written reviews are positive against 36% of CX's.

UpkeepUpdate frequency

Flight Computer Sim ships an update every 6 months, CX every 8 months. The most recent releases landed on September 22, 2026 and September 27, 2026 respectively.

Scorecard6 real differences · 5 level
Flight Computer Sim versus CX: the parameters behind the verdict, then further details
ParameterFlight Computer SimCX
PriceFree — better$19.99
Rating4.8 (26 ratings) — better3.7 (11 ratings)
Positive reviews88.2% of reviews — better35.7% of reviews
Number of ratings26 — better11
Update frequencyEvery 6 months — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#51 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS7.0 — better17.2
Further details — not scored
Size175 MB3 MB
Age rating4+4+
DeveloperDiego RodriguesASA

Customer experience

Flight Computer Sim

All ratings26 ratings
Positive92.3%
Neutral0.0%
Negative7.7%
Written reviews34 reviews
Positive88.2%
Neutral5.9%
Negative5.9%

CX

All ratings11 ratings
Positive63.6%
Neutral9.1%
Negative27.3%
Written reviews14 reviews
Positive35.7%
Neutral7.1%
Negative57.1%

In-app purchases

None

Flight Computer Sim

No in-app purchases

None

CX

No in-app purchases

Questions

Is Flight Computer Sim free?
Flight Computer Sim is free to download, with no in-app purchases.
Is CX free?
CX costs $19.99, with no in-app purchases.
Which has better reviews, Flight Computer Sim or CX?
Flight Computer Sim is rated higher. Flight Computer Sim averages 4.8 out of 5 from 26 ratings, while CX averages 3.7 from 11 ratings.
Do Flight Computer Sim or CX have ads?
Neither Flight Computer Sim nor CX shows ads.
Which is updated more often, Flight Computer Sim or CX?
Flight Computer Sim ships an update every 6 months, and CX every 8 months. Most recently, Flight Computer Sim was updated on September 22, 2026 and CX on September 27, 2026.

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