If you are a road warrior, you must know that one of the major problems when driving to new places is finding your actual location or the best route available to get to your destination. While there are a lot of mobile GPS Navigation apps,
 most of them are not free and require an active data connection to show the map of our current location in real-time. Fortunately there is MapFactor: GPS Navigation, a very capable free app that works using previously downloaded maps and your GPS to guide you through your journey.

The app’s main menu consists of six shortcuts that offer all the functionality you will need, although the ‘tools’, ‘map’ and ‘navigate’ are the ones you will use the most. There are 3 additional buttons at the bottom: Settings, Map Manager and Exit. In order to configure the app to your specific needs, the ‘settings’ button is the place to go. It contains all the options the app offers (vehicle profiles, the measure units, find points of interest and such), so make sure this is the first place you go before using the app.

MapFactor uses OpenStreetMap maps and downloads them directly to your phone memory through the ‘Map manager’. All the maps are free and the list is really long; they can take from a few megabytes to several hundred depending on the places (states or countries) you need to cover. Although downloading maps can be considered an annoying task by some people, this kind of approach lets the app to work completely offline once you hit the road, so it is ideal for users that do not have a 3G connection or find themselves driving through remote routes with very limited or null mobile data coverage. It is a clever way to avoid those expensive roaming data rates, too. Another benefit is that you can perform a smooth international routing without switching to a less detailed map once you cross into another country.

Selecting your starting and destination points is an easy task, just go to the map, tap on any desired location and then tap on the flag with a ‘S’ letter located at the top. The same goes for your destination, although you have to hit the checkered flag instead.  Once you have set your starting and destination locations, you can use the ‘tools’ menu to calculate the best route available, simulate it, calculate the ETA, or activate the odometer. You can set the map to rotate in your driving direction (dynamic), or north up (static).

While navigating, the app shows 3 slots at the bottom of the screen; each can show different information and you can choose among 15 different options ranging from your current altitude, to the time to the next maneuver, your current speed, or the distance left to your destination, among others.

OpenStreetMap’s data is updated monthly, and its advanced features allow you to trace your own route using different routing modes such as pedestrian, bicycle, truck, bus or car. For this last one, the application incorporates a practical option for radars / speed cameras detection, so it will warn with an audible alert whenever you approach one. Also, as with other major GPS navigation apps, MapFactor gives you the ability to display the maps in 2D or 3D, different compass options, a special ‘night mode’ to prevent the screen to dazzle you when driving at night, and voice guiding among other great features.

Ultimately, MapFactor: GPS Navigation is an amazing navigation tool that will save you a lot of money and trouble if you are the kind of person that drives a lot, whether it is for leisure or living. Even though the OpenStreetMap maps MapFactor uses are not as detailed or eye-candy as Google's, they are accurate and get the job done. The app is available for any device running Android 2.3 and up. The download size varies depending on your device, but it lies between 9 to 11.5 MB and will take around 13 MB once installed. The app is ad-supported, but the only time you will see them is while downloading maps, so it is a fair deal.

MapFactor: GPS Navigation — Free Mobile App of the Week

For Android
Size: 9 to 11.5 MB

You've seen from your weather forecast that there's rain about but you don't 

know when or where. With the Rain Alarm app you can receive notifications when rain or snow is on its way. You can call up a map with a radar animation of the approaching weather.

It's nice to know in advance that rain is approaching, especially if you enjoy outdoor activities. Maybe you just want to get the washing off the clothes line before it pours down. Whatever you use the app for, Rain Alarm gives you handy alerts so you're prepared.

The free ad supported version works in many countries and uses local weather radars to display the precipitation (rainfall or snow) on a map. The first time you run the app, you get a quick tutorial on how to use it.

When you get a notification, it tells you the approximate distance away, strength and area of the rain front. A tap on the notification brings up a map with your current location in the center. An overlay of a 30 minute radar animation shows what's approaching.

As the app uses Google Maps, you can pinch to zoom, choose between different modes like normal, satellite view and others. Satellite with labels is a good choice as it displays place names. You can also share your map and radar image, and use Open Street Map instead of Google Maps if you prefer.

By default, your device will vibrate and send you a notification if rain is within 47 miles or 75 km. You get another notification when rain is within 19 miles or 30 km. You can disable vibration in the app settings if you prefer. Sensitivity of the rain detection is also adjustable according to your preference.

What isn't mentioned anywhere in the app is what the radar colors mean. Here's a rough primer to help you interpret what you see:-

Off White to Blue - Light
Cyan to Yellow - Moderate
Orange to Red - Heavy
Dark Red to Dark Brown - Very Heavy

You'll need to turn on GPS so the app can create a map for your general location. If Rain Alarm is on a tablet that stays at home, you can let it get a location fix then turn the GPS back off. The app remembers where you are. If you take your device with you, it needs GPS on so it can give you the right map.

The app has a constantly running background service so it can monitor the weather, but doesn't cause any noticeable battery drain. Two home screen widgets are included to see information about the approaching rain.

Rain Alarm is a handy app if you're interested in the weather in your day to day activities. It won't take long before you consider it to be one of your most useful apps.

Rain Alarm — Free Mobile App of the Week

For Android
Size: 3.6 MB

Have you ever wanted more control over your device and what apps access the Internet? Only those who have 'rooted' their phone or tablet could do this bef
ore. Rooting your device can void your warranty, and the process can be nerve-wracking for the uninitiated. This app is a firewall, much like the one you have on an average PC. This capability wasn't available to most of us. Now it is with NoRoot Firewall.

The app works by using your phone or tablet VPN (Virtual Private Network) feature. With that, all Internet traffic will flow through the app so any desired filtering or blocking can be applied. Don't be concerned that a 3rd party now has access to all your data. The VPN exists on your device only, and no data is sent to external servers.

Before proceeding, it's worth mentioning that this app is probably better suited to the Android enthusiast. Those who are security conscious or just want more control of what happens on their device may find this app to be just what they are looking for.

A typical use for NoRoot Firewall is to block unwanted apps from accessing the Internet. These apps, sometimes called bloatware, are supplied with your phone or tablet by the manufacturer or carrier. For example, Flipboard on some Samsung devices. It can't be uninstalled or disabled and constantly accesses the Internet to download news stories whether you like it or not.

Now it's a simple matter to block the app so it doesn't chew up your data plan. Another example would be a game which has intrusive ads that interfere with game play, or some other app with ridiculous permissions you are suspicious about. Block them. If any undesirable side effects occur after you block something, you can easily restore Internet access to the specific app.

There aren't any settings as such, except if NoRoot Firewall should start at device boot-up. One annoyance is a dialog box you need to agree with every time the app starts, and I couldn't find a way to bypass that. At least you know it's running. The app has various tabs at the top—Home, Pending Access, Apps, Global Filters and Access Log.

After running it for a while, what you will see first is a notification that something has requested Internet access. A tap on that will take you to the pending access screen. You will find the requesting app's name and 'Allow' and 'Deny' buttons. You'll get a lot of these notifications to start with but there's a quicker way to arrange your blocks.

On the Apps tab is a full list of all your apps and next to each are two check boxes. One box for Wifi and the other for cellular data. This means you can block individual apps from accessing the Internet while you are using mobile data but allow them on your Wifi. Some money saving possibilities exist here. If you deny access to some apps and you want to reverse the change, this screen is where you do it.

Each check box has three possible states—a tick for allow, a cross for deny, or blank if the relevant app has yet to be determined by you. It's easier to just leave the ones you haven't decided about as blank.

Be careful what you block, like Gmail, Android system apps, browsers and others that simply can't function without Internet access. If you block something by mistake, simply allow it access again.

Don't worry if you see in your device data use setting that NoRoot Firewall has used a big chunk of data. It hasn't. Since all Internet access is funneled through the firewall, that's what shows.

For the more technically inclined users, the Log tab shows every app that accesses the Internet with the name of the site, its IP address and port. You could use the firewall to just block ads, but keep in mind that developers rely on advertising revenue to support their development and keep their apps free.

You can create custom rules/filters in the Global Filters tab. This will make the power users happy. Host and domain name filtering can be set up, but for most users, simple blocking will be enough.

The resource use and memory requirements are low. There was no noticeable impact on Internet access speed.

The only annoyance is the pop-up dialog box when you start your device as mentioned earlier, but that is an Android system thing. They obviously don't like consumers having control over their devices, so they try to scare them into not proceeding. As mentioned above, the VPN is within your device and no data leaves from the app.

The peace of mind you get knowing you now have good control over what apps can access the Internet makes that a small price to pay. It makes using your device a much nicer experience and more secure.

NoRoot Firewall — Free Mobile App of the Week

For Android
Size: 504 KB