Fast Clock vs ClockAPX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fast Clock
This application simulates a fast clock for model railroads. It allows for custom logos and maps, and can synchronize with external systems like JMRI or use real-time.
- Model railroad fast clock simulation
- Custom logo support
- Custom map integration
- JMRI time synchronization
- Real-time clock option
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A model railroad fast clock app Supports custom logos Supports custom maps Can read time from JMRI, the built-in fast clock, or real time
ClockAPX
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ClockAPX turns your iPhone into a customizable clock studio for TVs and external displays. Pick a clock face, tune the look, and mirror it in real time for desks, studios, classrooms, and focus sessions. What you can do - Mirror your selected clock to a TV or external display with live updates - Choose from a large library of clock faces across digital, analog, world clock, and timer styles - Run timers your way: Countdown, Stopwatch, Interval/HIIT, and Pomodoro Ring - Add world clocks and reorder time zones for global teams and travel - Personalize typography, 24-hour format, seconds/date visibility, and layout details - Style backgrounds with palettes, photos, symbols, and custom color controls - Enable context-aware face switching for Day, Night, and Work - Use display-focused options like always-on optimization and burn-in safe shift Start free with a limited set of designs and themes. Upgrade to Premium to unlock the full design and appearance library (subscription and lifetime options available). Privacy Policy: https://github.com/kjwamlex/ClockAPX-Privacy-Policy/blob/main/README.md End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Fast Clock at none against ClockAPX's 3. Fast Clock also leads on ads (none vs shown) and iOS requirement (15.6 vs 26.2). On price 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
Both are free to download. ClockAPX sells 3 in-app purchases, starting at $1.99 per month. Fast Clock asks for nothing beyond the download.
| Parameter | Fast Clock | ClockAPX |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (5 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 2 days | — |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 5 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Kevin Snow | Joonwoo Kim |
In-app purchases
Fast Clock
No in-app purchases
ClockAPX
- ClockAPX Plus Monthly$1.991 Month
- ClockAPX Plus Yearly$9.991 Year
- ClockAPX Plus Lifetime$14.99









