Flight Computer Sim vs CX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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)
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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.
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.
- 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
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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
Verdict
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
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.
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.
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.
| Parameter | Flight Computer Sim | CX |
|---|---|---|
| Price | Free — better | $19.99 |
| Rating | 4.8 (26 ratings) — better | 3.7 (11 ratings) |
| Positive reviews | 88.2% of reviews — better | 35.7% of reviews |
| Number of ratings | 26 — better | 11 |
| Update frequency | Every 6 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | — | #51 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 7.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 175 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Diego Rodrigues | ASA |
Customer experience
Flight Computer Sim
CX
In-app purchases
Flight Computer Sim
No in-app purchases
CX
No in-app purchases
Questions
Is Flight Computer Sim free?
Is CX free?
Which has better reviews, Flight Computer Sim or CX?
Do Flight Computer Sim or CX have ads?
Which is updated more often, Flight Computer Sim or CX?
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