CX vs Kantan Clock
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.
Kantan Clock
Track time across multiple cities with a clean, minimalist world clock. Organize your most important locations and view times at a glance with a home screen widget. Supports StandBy mode for easy viewing.
- Add and organize cities
- 12/24 hour format switching
- Clean, minimal interface
- Home Screen widget
- StandBy mode support
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Kantan Clock is a thoughtfully designed world clock that helps you track time across cities without clutter or distraction. • Add and organize the cities that matter most to you. • Switch between 12-hour and 24-hour formats. • Enjoy a clean, minimal interface built for focus. • Use the Home Screen widget to see the time at a glance. • Supports StandBy.
Screenshots
Verdict
The clearest difference is price: Kantan Clock at $0.99 against CX's $19.99. Kantan Clock also leads on rating (5.0 vs 3.7) and update cadence (every 4 days vs every 8 months). CX's advantage is ratings volume (11 vs 1) and chart position (#89 vs unranked). On ads, in-app purchases, monetization model and device support 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 Kantan Clock $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Kantan Clock 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, Kantan Clock every 4 days. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.
| Parameter | CX | Kantan Clock |
|---|---|---|
| Price | $19.99 | $0.99 — better |
| 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 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #89 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.2 | 16.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | ASA | Andres Iga Salas |
Customer experience
CX
Kantan Clock
In-app purchases
CX
No in-app purchases
Kantan Clock
No in-app purchases
Questions
Is CX free?
Is Kantan Clock free?
Which has better reviews, CX or Kantan Clock?
Do CX or Kantan Clock have ads?
Which is updated more often, CX or Kantan Clock?
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