There are many Android cleaner apps to remove junk files on phones and boost phone speed, but which one should you choose? Do they work? Here I try three popular ones on my Android phone.

The iPhone and iPad are black boxes. You switch them on and they work, except when they don't. Then you are struggling to find out what the problem could be. Use these diagnostic tools.

If you don’t have a tune-up and clean-up app for your Android phone or need a better one, here are two great ones that offer a comprehensive collection of useful tools and are free.

Space, memory and data usage are key system functions that you must monitor on your iPhone and iPad. The question is, what is the best way to do it? These great Today widgets do the job.

Battery life is a constant problem for many Android phone users and it just isn’t as good as we would like - all-day use. How can it be improved? By stopping apps running in the background.

Android phones slow down and use more battery as apps are installed. One reason is because apps run in the background, affecting memory and performance. Stop startup apps with these tools.

Poor battery life on your mobile phone is a constant problem and it affects a lot of people. If you have an Android phone, this guide will help you extend battery life with tweaks and apps.

AVG Cleaner is a popular choice of app for Android users looking to clean up and tune up their mobile phone. It aims to clear the crud that builds up over time and aid smooth running.

The iPhone Today screen is a great place to put a weather forecast and you can see with a couple of swipes what to expect for the next few days. Here are some top Today weather widgets.

Batteries continue to grow in capacity, yet our phones often still don't last a full day as the hardware and apps demand ever more power. These Android apps monitor and improve battery life.

If you like trying new apps on your Android phone you need to know how to cleanly remove them if you don't want to keep them or junk left-overs will fill the phone. Uninstaller apps help.

Google Files Go is a cleanup tool that removes unwanted junk and apps from your phone to free up space. It is also handy for securely transferring files from one Android device to another.

If you want security and privacy when using the internet, particularly when using public Wi-Fi hotspots, a VPN is needed on the iPhone. Should you pay for one or use a free VPN service?

Microsoft provides free online storage and a free app to access it from your mobile phone, and it now has even more features than ever. See what’s new in the updated app for the iPhone.

Do you want to know what is going on inside your iPhone or iPad. If you are curious about what iOS is doing behind the scenes, these four apps will show you the CPU, RAM, storage and more.

How do you turn on your Android phone’s screen? By pressing the home button or power button? An app called KinScreen offers many more ways to turn it on and turn it off. It works like magic!

There are many clean-up apps that remove the junk from Android phones, but File Go is different because it is from Google, who also makes Android, so it should know a thing or two about cleaning up.

Have you tried Google Datally? It is not one of the company’s best known apps, but it could be one of the most useful. It monitors mobile data on Android phones and can reduce the amount used.

Microsoft once had the web browser market mostly to itself, but is struggling with Edge in Windows 10. However, Edge for iPhone could boost its use by helping Windows users feel at home.

Chrome is the obvious web browser to use on an Android phone or tablet, but it is not the only one. It may not even be the best one and there are alternatives that might better suit you.