Comparison

Coverage Map vs iSIU

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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)
Features
Read full description

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

About

iSIU

Features
Read full description

iSIU.AI by Green Grid Inc. Real-Time Grid Intelligence. Actionable Alerts. Faster Response. Preventative Insights. Asset, Vegetation and PSPS Management and Wildfire Risk Mitigation. iSIU.AI is the mobile companion for Green Grid Inc.’s iSIU® (Instant Situational Insights®) platform, built for electric utilities and grid operators who need real-time visibility into risk events across their power infrastructure. Using advanced computer vision, AI, and edge intelligence, iSIU continuously monitors power lines and grid assets to automatically detect hundreds of potential risk events — delivering critical alerts directly to your iPhone when they matter most. Key Capabilities Real-Time Alerts & Notifications Receive immediate notifications for detected grid risks, anomalies, and events identified by iSIU’s AI-powered monitoring system. Live AI Powered video and Weather Data Instantly inspect locations using AI powered video analysis, remote control the camera and get real situational insights to prevent outages and fires and perform operations more effectively. AI & Computer Vision Detection Automatically identifies potential threats such as vegetation contact, equipment issues, foreign objects, wildlife interactions, and other conditions that could lead to outages or ignitions. Wildfire & Ignition Risk Reduction Early detection helps utilities take proactive action to prevent fires, reduce ignition risk, and support wildfire mitigation strategies. Faster Outage Response & Restoration Improve situational awareness before, during, and after events such as Public Safety Power Shutoffs (PSPS) to restore power more quickly and safely. Operational Awareness Anywhere Stay informed in the field or on the go with secure mobile access to iSIU alerts and event insights. Built for Utilities iSIU.AI is designed exclusively for Green Grid Inc. customers, supporting utility operations teams with timely, actionable intelligence that enhances grid reliability, safety, and resilience. Note: This app requires an active iSIU account provided by Green Grid Inc.

Screenshots

Coverage Map4 screens
iSIU4 screens

Verdict

The call

The clearest difference is ads: iSIU at none against Coverage Map's shown. iSIU also leads on update cadence (daily vs fortnightly). On price, in-app purchases, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Coverage Map ships an update fortnightly, iSIU daily. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

Scorecard2 real differences · 8 level
Coverage Map versus iSIU: the parameters behind the verdict, then further details
ParameterCoverage MapiSIU
PriceFreeFree
Rating4.7 (798 ratings) — better—
Positive reviews67.6% of reviews—
Number of ratings798 — better—
Update frequencyFortnightlyDaily — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size69 MB61 MB
Age rating4+4+
DeveloperCoverage Map LLCGreen Grid Inc.

Bugs and 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

iSIU

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Coverage Map

No in-app purchases

None

iSIU

No in-app purchases

Questions

Is Coverage Map free?
Coverage Map is free to download, with no in-app purchases.
Is iSIU free?
iSIU is free to download, with no in-app purchases.
Do Coverage Map or iSIU have ads?
Coverage Map shows ads; iSIU does not.
Which is updated more often, Coverage Map or iSIU?
Coverage Map ships an update fortnightly, and iSIU daily. Most recently, Coverage Map was updated on October 13, 2026 and iSIU on September 29, 2026.

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