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Directly overlay and compare cellular carrier coverage maps! Perfect for travelers - research where you're covered across the USA!

** Follow our Facebook page to get update alerts: **

**January Update Status: We will be working on the next map update for release in February. T-Mobile has announced they are changing their map system in late Jan, which we'll have to compensate for. We'll also update for iPhone 6 and 6+ displays.**

Coverage? focuses on helping mobile bandwidth junkies find cell signal as they roam. Save time looking up coverage on the carrier's websites, compare their claims head to head and better plan your travel routing to stay connected.

** The carrier's maps in your pocket: This app contains regional maps based off of each major carrier's data map - as found on their websites. Quickly overlay the carriers you use, to create your own personalized coverage map on your device.

** No internet needed: Our proprietary coverage maps are stored within the app on your device - no downloading needed! Quickly access where you're supposed to get a signal, even when you have none.

** Urban and rural areas: Maps are at a regional level, and cover the entire continental USA, Alaska, Hawaii, Puerto Rico, and the US Virgin Islands.

** Carriers included: AT&T, Sprint, Verizon and T-Mobile

** Know where to roam: view LTE, '4G' (HSPA+ & WiMax), 3G, 2G and roaming areas as inclusive overlays, focus on finding the coverage type you desire. (Hint: T-Mobile does not graphically distinguish between 3G/4G/LTE on their own regional maps. Thus we manually insert dark purple stars to at least indicate their LTE markets.)

Check for a quick video demo. We created this app because we are full time RVers ('technomads') ourselves who rely on mobile data to work remotely. Keeping this app updated is a priority for us, as we depend on it ourselves!

Coverage FAQ:
Q: Why aren't the maps more detailed or released more often?
A: Our map updates require a lot of meticulous labor intensive processing. The carriers are all rapidly rolling out new coverage and there's just no practical way to issue a new update everytime a new tower is turned on. We monitor new coverage and try to find balance between effort & staying current. Updates generally are issued every 7-10 weeks.

Q: What makes 'Coverage?' unique?
A: There are great apps out there that collect user submitted signal reports - we love them. However, those apps are only useful in markets with an active user base. We took a different approach with Coverage? - we needed a tool to at least give us an idea of where signal should be - urban, rural and out in the boonies. Sure, carrier maps aren't a guarantee of where signal actually is, but it sure is helpful to know which direction to head when you need it!


Named 'Essential Tool' by Wired Magazine

** Winner - 'Most Useful App' - iOSDevCamp

"this app can be indispensable" -


The original goal of Coverage is to help fellow frequent travelers keep connected and plan their routes. Some have also found the app useful for shopping for their best carrier, even though our maps are regional - not neighborhood level detailed.

The maps in Coverage are our own proprietary interpretations of the coverage reported by each carrier. You should not rely on the maps in Coverage to be perfectly precise or absolutely timely, though we intend to update them at least quarterly. So far, map updates have been free - we may at some point offer more frequently released higher res maps via in app purchase.

Coverage does not report, collect or predict signal strength (there are great apps out there for that!). We can make no promises as to where you'll *actually* get signal.. there are too many variables - towers, device, terrain, weather, etc.

So… Got Coverage?

What's new

NOTE: We discovered a bug in the apps ability to properly take advantage of the larger screen on the iPhone 6 and 6+, and it still runs stretched. This will be addressed in the next update.

Update Notes:
Major map update - the latest coverage maps from Verizon, AT&T, Sprint, and T-Mobile.
Improved compression - application size dramatically reduced, and coverage layer edges improved.
Updated for iOS8.

Enhanced LTE Maps:
- Sprint now shows Spark markets on their maps, so it's now displayed as a darker brown on the LTE layer.
- Verizon now claims over 75% deployment of XLTE and growing daily. They do not differentiate on their own maps - so we opted to discontinue displaying 'stars' in XLTE markets to reduce clutter. XLTE is getting to be 'almost everywhere' anyway.
- T-Mobile still does not differentiate even LTE from 3G on their own maps visually. We've left darker purple stars in their LTE markets.
- AT&T is not yet reporting deployment of their AWS spectrum.

This app update was developed entirely with solar power. Yay!


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Last changed:
Nov 18, 2014
Two Steps Beyond
20.0 MB

Current Version Average Rating:
4.50 (25)

All Versions Average Rating:
4.50 (512)
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Coverage? 4.50 out of 5 based on 25 ratings.