# Art Sentry vs CX

The clearest difference is price: Art Sentry at Free against CX's $19.99. Art Sentry also leads on update cadence (every 3 months vs every 8 months) and iOS requirement (14.0 vs 17.2). CX's advantage is chart position (#116 vs unranked). On ads, in-app purchases and device support there is nothing between them.

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

Art Sentry ships an update every 3 months, CX every 8 months. The most recent releases landed on May 17, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Art Sentry | CX |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| Rating | — | **[3.7 (11 ratings)](https://appshunter.io/ios/app/cx-3-flight-computer/id1645428895/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 35.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | — | Paid |
| Best chart rank | — | **#116** |
| Size | 6 MB | 3 MB |
| Requires iOS | **14.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Acuity-vct](https://appshunter.io/developer/901921616) | [ASA](https://appshunter.io/developer/334278379) |

## What reviewers say

### Art Sentry

[App page](https://appshunter.io/ios/app/art-sentry/id1569865224)

**In-app purchases:** none


### CX

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

**Currently charting:** #116 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 Art Sentry free?

Art Sentry is free to download, with no in-app purchases.

### Is CX free?

CX costs $19.99, with no in-app purchases.

### Do Art Sentry or CX have ads?

Neither Art Sentry nor CX shows ads.

### Which is updated more often, Art Sentry or CX?

Art Sentry ships an update every 3 months, and CX every 8 months. Most recently, Art Sentry was updated on May 17, 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.*