Open up Settings and go to Security. Scroll down and next to where it says 'Unknown sources', tap the toggle to turn this setting on.
Now you need to download the Pokémon Go APK file. On your Android device go to the Pokémon Go APK webpage and tap on 'Download APK'. Select 'OK' when the warning message appears and Pokémon Go will download. This APK file is now the latest version of Pokémon Go.
Once it's downloaded, swipe your finger down from the top of your Android device to see the notification area and select the Pokémon Go file, then select 'Install'. Pokémon Go will now install, letting you play right now. Happy hunting!
How to download and install Pokémon Go on iPhone
If you have an iPhone or another iOS device, then the process for getting Pokémon Go is slightly different.
While Pokémon Go is available on the App Store, if it's not available in your country follow our instructions on how to download and install it.
Log out of your Apple ID
First of all, you'll need to make your iPhone belive you're in a region that can download Pokémon Go. Open up Settings on your iPhone, tap on 'Apple ID' and select to sign out.
Now go back into Settings and select General > Language & Region. Set your region as US, New Zealand or Australia - all of these regions can download Pokémon Go.
Open up the App Store
Now open up the App Store. Search for Pokémon Go and it should appear. If it doesn't choose a free app to download and select 'Create new Apple ID'.
Go through the process of creating an Apple ID and select 'None' in the Billing menu and add a US, New Zealand or Australian address. Google can come in handy here if you need to search for an address.
Download Pokémon Go onto your iPhone
Now you can download and install Pokémon Go onto your iPhone or iPad. Once Pokémon Go is released in your region you can sign back in with your Apple ID - though you may need to reinstall Pokémon Go.
Luckily your data is saved to the cloud, so you'll be able to play Pokémon Go where you left off.