From the invite message
Before being invited to Thirdfort the business that needs to verify you should be in touch to let you know they need you to complete a Thirdfort check. Once they’ve done this and set up your check we’ll send you a text, and you may also receive an email, to get you started.
In the message, you'll receive a link to download the Thirdfort app. You can install the app on smartphone and tablet devices.
The message will also confirm who set up your check, and what it's about e.g. moving house.
Directly from the App Store
When downloading Thirdfort you can do this on any smartphone not just the one you received the invite on. If you are using a different device and don't have your invite message you can install Thirdfort directly from that phone's app store.
Simply select the Google Play Store or Apple App Store on your device and search for 'Thirdfort.' From here you can then download the app on whichever smartphone you want to use.