CX vs HydraPro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
HydraPro
Control multiple compatible cameras remotely via Bluetooth. Automate recording based on GPS speed, set camera modes, and monitor status like battery and storage. Offers a special loop picture mode for unique shots.
- Bluetooth camera control
- Control up to 8 cameras
- Individual or group camera control
- GPS speed-triggered recording
- Set and save camera modes/presets
- Camera status display
- Special loop picture mode
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Features. -Uses Bluetooth only. -Control up to 8 cameras (depending on type of Phone). -Control camera(s) individually or together. -Recording on/off linked to GPS speed detected by phone. -Set camera modes and presets. -Save preferred modes and presets so that they are set automatically when modes are changed. -Special HydraPro “loop” picture mode. -Turn camera(s) on or off. -Camera status display (battery, SD card storage, recording time, …). -Easy to use user interface with large fonts and controls. GoPro cameras supported. -Full support: Hero 4, Hero 9, Hero10, Hero11, Hero11 Mini, Hero12. -Limited Functionality (no preset control): Hero5, Hero6, Hero7, Hero8 Usage examples. -Driving footage (car, motorcycle, ATV, track, cycling…) -Waterskiing, wakeboarding, wake surfing. -Any other application where a camera remote would be useful.
Screenshots
Verdict
The clearest difference is rating: HydraPro at 5.0 against CX's 3.7. HydraPro also leads on iOS requirement (8.0 vs 17.2). CX's advantage is ratings volume (11 vs 1) and chart position (#36 vs unranked). On price, 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
CX costs $19.99 and HydraPro $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
HydraPro holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: CX has 11 ratings behind it against 1, so its average is the more settled of the two.
CX ships an update every 8 months, HydraPro every 4 months. The most recent releases landed on September 27, 2026 and June 6, 2026 respectively.
| Parameter | CX | HydraPro |
|---|---|---|
| Price | $19.99 | $19.99 |
| Rating | 3.7 (11 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 35.7% of reviews | — |
| Number of ratings | 11 — better | 1 |
| Update frequency | Every 8 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #36 — better | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.2 | 8.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | ASA | LakeshoreLogic LLC |
Customer experience
CX
HydraPro
In-app purchases
CX
No in-app purchases
HydraPro
No in-app purchases









