VPNs are not new and apps to reduce battery drain are quite common, but what happens when you combine the two? You get an app that not only increases security, but also battery life too.

Comodo is well known for PC security and like many rivals, it has entered the next big market, mobile security. The company’s Android app has some good features, but also some irritations. It is free though, which is a bonus.

Every time you connect to the internet you are being tracked and logged. Someone is watching. A VPN can help to limit that activity and adding one to an Android phone or tablet can increase your privacy and security.

We store a lot of personal and private information on our mobile phones, but is it secure? Can other people access it? Does information leak out? Are your private details being passed on? Clueful Privacy Advisor will tell you.

When apps are installed on an Android phone or tablet they can access information about you through your various Google accounts. Which apps can do this and what are they accessing? You can find out and then block them for extra privacy.

Android has many great features, but also a few irritations too and one of these is apps that run in the background. The more apps you install, the more that hide in the background. There they occupy memory and consume processing power and suck the life out of the battery. What can you do?

One of the nice features of Android is the ease with which it can be customised. Every iPhone looks the same, apart from the wallpaper image, but Android users can add lock screen apps that appear when the phone is woken up. Microsoft has an interesting lock screen app that is simple, but effective. You might think it odd that Microsoft has produced an Android app, but the company actually has quite a lot and some are really good, like Next.

Why is it that nearly every app you install on phones and tablets includes sharing features? They frequently pester you to connect your Facebook, Twitter, Google+ and other social networking accounts. Is this a good idea though? You can end up sharing too much with people you don’t know and this can be dangerous in ways you never realised.

Do you have bad apps on your phone? Are you worried about downloading and installing apps? Have you heard that there are bad apps in the Google Play Store? Apps can be bad for many reasons and, although rare, they certainly exist and there is a small chance that you could install one on your Android phone or tablet. Here is how to avoid them.

Rooms is a sort of throwback to the early days of the internet, perhaps even to bulletin boards before the internet existed. It is an app for iOS devices like the iPhone that people can use to create chat rooms. Unlike modern social networking services like Facebook, Twitter and others, Rooms is anonymous and that could be a problem.

Privacy issues are a constant concern for many people that use mobiles phones, tablets and the internet. Only recently there were leaked photos of naked celebrities, but privacy is not just about pictures we don’t want other people to see. Privacy is also about preventing people and companies from tracking your activities as you browse the web, not sharing your name, age, phone number, location, hobbies and interests with all and sundry.

How many times have you lost your phone? No, not really lost it, but lost it in your home. You know you had it last night, but this morning when you get up, you cannot remember where you left it. Is it under the bed or the sofa? In the lounge or the kitchen? Has the dog picked it up, drooled all over it and dropped it in his basket? Android Device Manager can locate it for you.

I lost my phone at the weekend. I knew it was in the house somewhere, but it wasn't on the table where I usually keep it. Finding it was pretty straightforward...