All-In-One Offline Maps

Review by eFreeware

If you spend time where the signal bars disappear, All-In-One Offline Maps is worth understanding before your next trip. The idea is straightforward: once a map has been displayed, it is kept on the device and stays available quickly, even with no network access. That single behavior changes how the app is used. Instead of hoping for coverage at the moment you need directions, you prepare the maps beforehand and carry them with you.

The people most likely to want this are hikers, cyclists, overlanders, survey and field workers, and travelers heading abroad, along with anyone on a limited data allowance who would rather not spend it on map tiles. The developer also pitches it at people who are simply tired of waiting for maps to load. Psyberia has been shipping this app since April 2013, and the current build was updated in March 2026, so it is an established tool rather than a new experiment.

What you get is a mapping app built around stored data rather than live lookups. The rest of the app supports that core: placemarks for the things you want to remember, a GPS position and orientation display, and a long list of coordinate and unit formats for people who work with grid references.

Who will get the most out of stored maps

The clearest case is anyone whose routes regularly leave reliable coverage. A weekend hillwalker can store a topographic map of a range before setting out and still see the terrain at the summit. A driver crossing a sparsely covered stretch of highway can keep the road map on screen without watching a loading spinner. A traveler arriving in another country can prepare maps at home before leaving.

The second group is people who care about their data allowance. Because displayed maps are stored locally and remain available, the app reduces how much map data you pull over a mobile connection. That matters on a capped plan, and it matters even more when the alternative is paying for roaming.

There is also a more technical audience here. The coordinate format list runs from latitude and longitude through UTM, MGRS, USNG, OSGB Grid, Irish Grid, Swiss Grid, Lambert Grids, DFCI Grid and the QTH Maidenhead Locator System, with the ability to import hundreds more formats from spatialreference.org. Anyone who works with grid references rather than street addresses will recognize that as the point of the app, not a bonus feature.

If your mapping needs are limited to city driving with a good connection, the preparation this app asks of you is effort you may not need. It is built for people who plan ahead and want their maps to survive the moment the network drops.

Road, topographic and aerial maps in one place

The map catalog covers more ground than a typical navigation app. It draws on OpenStreetMap for roads and topography and the USGS National Map for high-resolution topographic and aerial coverage. Worldwide Soviet military topographic maps are also listed, which is an unusual inclusion and one that will appeal to people who collect historical or alternative cartography.

The layering system is where this becomes more than a viewer. Maps can be stacked on top of one another with precise opacity control, so you can fade a topographic layer over an aerial image, or keep a road overlay visible on top of terrain. That is the sort of control that makes a difference when you are reading landscape rather than following turn-by-turn directions.

Storing areas is described as a matter of a few clicks, and the space those stored maps occupy is presented clearly and can be deleted when you no longer need it. That last part matters on a phone with limited storage: an offline map collection can grow, and being able to see and remove it keeps the app manageable.

Placemarks, waypoints and track data

On top of the maps, the app handles an unlimited number of placemarks. You can add waypoints, icons, routes, areas and tracks, which covers both simple pins and more involved route planning. Marking a trailhead, sketching an area of interest or drawing a route are all part of the same system.

Managing those items is done through what the developer calls the SD-Card Placemarks Explorer. The name suggests a file-based approach, which should suit anyone used to organizing GPS data as files rather than inside a proprietary database.

For marking locations and planning routes, the placemark system covers the ground.

Position, orientation and coordinate formats

The GPS display shows your real location and direction on the map. The map can be turned to match the direction you face, as far as the device allows. There is an easy on and off switch for GPS, which is a sensible inclusion for battery life when you are consulting a stored map rather than tracking your position.

The coordinate side is unusually thorough. Extra coordinate formats, running into the hundreds, can be brought in from spatialreference.org.

On-map grids can be displayed, which pairs naturally with the grid coordinate formats for anyone plotting positions by hand. The map view can also be taken full screen and supports multi-touch zoom, so the basics of reading and moving around a map are covered without fuss.

What the app costs and what that buys

All-In-One Offline Maps is free to download, and there are no advertisements. That combination is rare in a category where free usually means banner space.

The app does offer in-app purchases. The developer also states that there is no data sharing or monetization of your information, no analytics and no third-party libraries, which is a claim worth noting for anyone who is careful about what runs alongside their location data.

Beyond the download, the costs to weigh are practical rather than financial. Stored maps take up device storage, and building a useful collection takes some planning before you leave. The app is rated for Everyone and has been in the store since April 2013, with more than 10 million installs and a 4.4 average across 60,192 ratings.

When a dedicated outdoor app makes more sense

AlpineQuest Off-Road Explorer is the fuller option built on the same foundation. It adds a GPS Track Recorder and is described as a complete outdoor package. If recording where you have been is central to what you do, that is the direction to look, and it is useful that the developer is upfront about the relationship between the two rather than pretending this app does everything.

A general navigation app is another alternative, and for many people it is the right one. If your journeys stay within coverage and you mostly want turn-by-turn guidance, a mainstream maps app will do the job with less preparation. This app is aimed at a different problem: keeping maps available when the network is not.

A dedicated handheld GPS unit is the third comparison. Those devices are built for the field, but they are separate hardware to buy, charge and carry. All-In-One Offline Maps puts stored maps, placemarks and coordinate readouts on the phone already in your pocket, which is the argument in its favor.

The choice comes down to how much you value offline reliability against convenience. If you regularly find yourself without a signal, the trade is worth making. If you rarely do, the extra setup is hard to justify.

A dependable offline companion for planned trips

All-In-One Offline Maps does one thing well and builds a credible set of tools around it. Maps that have been displayed stay available without a network connection, and the app supports that with layered road, topographic and aerial sources, a flexible placemark system, GPS positioning and orientation, and a coordinate format list that goes well beyond the usual latitude and longitude.

It is free, with no advertisements, and offers in-app purchases. The developer's claims about data sharing, analytics and third-party libraries will matter to readers who are particular about that side of an app, and they are stated plainly rather than buried.

The app suits hikers, cyclists, overlanders, field workers and travelers who plan their maps before they leave and want them to work when the signal does not. If you need a track recorder as part of the package, the developer's own AlpineQuest Off-Road Explorer is the more complete option. For everyone else who has ever watched a map fail to load at the worst possible moment, this is a sensible app to have installed.

What's new in version 3.18c

The complete list is available in the changelog inside the application. 3.18c • Improved the community maps list; • And more