# Flight Computer Sim vs CX

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 (#56 vs unranked). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

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.

## The numbers

| Metric | Flight Computer Sim | CX |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| Rating | **[4.8 (26 ratings)](https://appshunter.io/ios/app/flight-computer-sim/id951334562/reviews)** | [3.7 (11 ratings)](https://appshunter.io/ios/app/cx-3-flight-computer/id1645428895/reviews) |
| Number of ratings | **26** | 11 |
| Positive reviews | **88.2% of reviews** | 35.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 8 months |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#56** |
| Size | 175 MB | 3 MB |
| Requires iOS | **7.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Diego Rodrigues](https://appshunter.io/developer/945473545) | [ASA](https://appshunter.io/developer/334278379) |

## What reviewers say

### Flight Computer Sim

[App page](https://appshunter.io/ios/app/flight-computer-sim/id951334562)

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:** macOS Compatibility

**In-app purchases:** none


### CX

[App page](https://appshunter.io/ios/app/cx-3-flight-computer/id1645428895)

**Currently charting:** #56 Top Paid · Utilities (US App Store)

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

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*