HamClock vs Mount Prospect EMA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HamClock
This app provides a clear display of local and UTC time, along with sunrise/sunset and grid square information for amateur radio operators. It features an interactive map to find grid squares and displays the gray line. Optimized for both phone and watch, it's a useful tool for ham radio enthusiasts.
- Local and UTC time display
- Sunrise/sunset times
- Grid square locator
- Interactive grid square map
- Gray line display
- Watch compatibility
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HamClock is a handy clock with features for amateur radio operators! One screen shows your local time in 12H and 24H format along with UTC in large, easy to read text. If your location is available, your grid square, local sunrise and sunset are also displayed. An interactive grid square map lets you find the grid square for any location, and displays the current gray line. Flip to landscape mode for a larger UTC time display. Great for keeping track of things while operating. On your watch, you can also quickly display your grid square and location. HamClock is great for finding your grid square while traveling, or use it as a handy clock in your shack.
Mount Prospect EMA
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This mobile app offers the residents of Mount Prospect, Illinois, emergency preparedness guidance and resources. Users can find useful PDFs, videos, and readiness checklists that will help them prepare for emergencies in their area. News, FAQs, contact information, and an alerts module are also provided.
Screenshots
Verdict
The clearest difference is price: Mount Prospect EMA at Free against HamClock's $0.99. HamClock's advantage is device support (4 vs 2) and iOS requirement (13.4 vs 18.6). On 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
Mount Prospect EMA is free to download; HamClock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
HamClock ships an update every 4 months, Mount Prospect EMA every 3 months. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.
| Parameter | HamClock | Mount Prospect EMA |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.0 (24 ratings) — better | — |
| Positive reviews | 47.8% of reviews | — |
| Number of ratings | 24 — better | — |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 13.4 — better | 18.6 |
| Further details — not scored | ||
| Size | 1 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Ben Sinclair | Village of Mount Prospect (IL) |
In-app purchases
HamClock
No in-app purchases
Mount Prospect EMA
No in-app purchases
