UTC Complications vs CX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UTC Complications
This app offers customizable digital time complications for Coordinated Universal Time (UTC) on Apple Watch. It's ideal for aviators and developers needing a quick reference for server logs. Complications update every minute and can be configured with various display options.
- Customizable UTC time complications
- Updates every minute
- 24-hour ISO 8601 format by default
- Supports 12-hour time
- Customizable time labels (UTC, GMT, Z, Zulu)
- Color customization for watch faces
Read full descriptionHide full description
UTC Complications for Apple Watch provides customizable, digital time complications for Coordinated Universal Time (UTC). A great quick reference for aviators and software developers looking at server logs. If this app doesn't show up on your Watch after purchase, open the App Store on your Watch, scroll to the bottom, choose Account → Purchased, and download from there. Complications are provided for every available Apple Watch complication slot and update every minute with the current UTC time. By default, complications are presented in 24-hour ISO 8601 time. You can set many options including: • Using your device's region settings • Using 12-hour time • Using "UTC", "GMT", "Z", "Zulu", or "±00:00" to label UTC time • Customizing colors on supported watch faces
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
Read full descriptionHide full description
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 price: UTC Complications at $0.99 against CX's $19.99. UTC Complications also leads on iOS requirement (13.0 vs 17.2). CX's advantage is rating (3.7 vs 3.0) and chart position (#52 vs unranked). On review sentiment, ratings volume, update cadence and ads 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
UTC Complications costs $0.99 and CX $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CX holds the better App Store score, 3.7 against 3.0. Both are backed by a comparable volume of ratings — 14 and 11 respectively. Written reviews point the same way: 33% of UTC Complications's written reviews are positive against 36% of CX's.
UTC Complications ships an update every 7 months, CX every 8 months. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.
| Parameter | UTC Complications | CX |
|---|---|---|
| Price | $0.99 — better | $19.99 |
| Rating | 3.0 (14 ratings) | 3.7 (11 ratings) — better |
| Positive reviews | 33.3% of reviews | 35.7% of reviews — better |
| Number of ratings | 14 — better | 11 |
| Update frequency | Every 7 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #52 — better |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Professionally Ridiculous LLC | ASA |
Customer experience
UTC Complications
CX
In-app purchases
UTC Complications
No in-app purchases
CX
No in-app purchases
Questions
Is UTC Complications free?
Is CX free?
Which has better reviews, UTC Complications or CX?
Do UTC Complications or CX have ads?
Which is updated more often, UTC Complications or CX?
Other comparisons















