PowerMaster vs Coverage Map
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PowerMaster
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Monitor your UPS and get prompt notification anywhere and anytime! PowerMaster app provides a status overview of your UPS. It enables you to monitor your UPS and supports event notifications to ensure instant event update. PowerMaster app also supports multiple UPS monitoring. You can select a UPS from the UPS List and check its status. Download free PowerMaster app and enjoy the benefits the following features bring: - Monitor Monitor page provides an overview of the UPS current status, including power supplied, voltage supplied, power condition, battery capacity, battery status, estimated runtime and UPS load. Multiple UPS monitoring is also available. - Event log Event log info provides the a list of happened events.
Coverage Map
This app provides a crowdsourced map of cellular network performance and coverage across the US, Canada, UK, and Puerto Rico. Users can view real-time speed test data, compare carrier performance, and check signal strength in specific areas. It also includes a built-in speed test to contribute to the map.
- Crowdsourced speed test map
- Real-time performance data
- Download, upload, and latency details
- Carrier and network type filters
- Built-in speed test functionality
- Signal strength mapping (US only)
- Data-driven coverage reports (US only)
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Coverage Map helps you find the #1 cell phone carrier in your area. It is a crowdsourced map of cellular networks in the US, Canada, United Kingdom, and Puerto Rico with more countries launching soon. SPEED TEST MAP (All Countries) • Highly accurate: see real-world performance reported by users • Real-time: map updates in real-time as new data comes in • Rich detail: tap any square to see download speeds, upload speeds, and latency for all carriers in that area • Powerful filters: filter by carrier, LTE/5G, download speeds, upload speeds, or see your speed tests only • Helpful color profiles: default, heat map, and best carrier help you visualize and understand the data • Easy to understand: see what carrier performs best in an area at a glance with the Best Carrier color profile BUILT-IN SPEED TEST (All Countries) • Test your speeds: see how fast your LTE or 5G connection is by running a speed test • Accurate results: get accurate results for download speed, upload speed, and latency • Recurring tests: run up to 500 recurring tests automatically and customize the pause duration between tests • Set a data limit: limit how much data the app can use • Tag your tests: tag a test as indoor, outdoor, driving, or other • Improve the Speed Map: running a speed test automatically contributes to the fastest-growing crowdsourced map of cellular networks (note: if your country is not currently supported, when we do launch in your country all of your tests will instantly be mapped and will show up on the map) SIGNAL STRENGTH MAP (US only) • Check reception: see where each carrier has great, good, or poor coverage • Compare coverage footprints: toggle between carriers to see how coverage footprints compare in different areas • Data for every location: the Signal Strength Map uses data from the FCC Broadband Collection, which has coverage data for the continental U.S., Alaska, and Hawaii COVERAGE REPORT MAP (US only) • Data-driven reports: the Coverage Report Map aggregates all available data points to generate detailed reports of cellular coverage & performance in every state, county, city, and ZIP code • Percentage covered: see what percentage of an area each carrier covers • Weighted median: see weighted median values for download speed, upload speeds, and latency for a better picture of real-world cellular performance • Carrier rankings: see what carrier ranks best for coverage, speed, reliability, and overall performance in every area • Distribution graphs: see the distribution graphs for download speeds, upload speeds, and latency • Performance by time of day: see how data speeds vary over the course of day as network traffic picks up Terms of Use and Privacy Policy: https://coveragemap.com/privacy-policy
Screenshots
Verdict
The clearest difference is ads: PowerMaster at none against Coverage Map's shown. PowerMaster also leads on iOS requirement (12.0 vs 15.0). Coverage Map's advantage is update cadence (fortnightly vs every 4 months). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
PowerMaster ships an update every 4 months, Coverage Map fortnightly. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.
| Parameter | PowerMaster | Coverage Map |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (798 ratings) — better |
| Positive reviews | — | 67.6% of reviews |
| Number of ratings | — | 798 — better |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 52 MB | 69 MB |
| Age rating | 17+ | 4+ |
| Developer | Cyber Energy Co., Ltd. | Coverage Map LLC |
Bugs and requests
PowerMaster
Not enough reviews yet to summarise bugs or requests.
Coverage Map
Reported bugs
4 issues- Frequent crashes when viewing maps
- Speed test failures and timeouts
- Inconsistent speed test results
- Incorrect location detection
Requested features
5 requests- Low data mode
- Offline coverage map downloads
- Ability to set test duration and frequency
- Display cell tower locations
- Expand to international coverage
In-app purchases
PowerMaster
No in-app purchases
Coverage Map
No in-app purchases
Questions
Is PowerMaster free?
Is Coverage Map free?
Do PowerMaster or Coverage Map have ads?
Which is updated more often, PowerMaster or Coverage Map?
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