Speak & Improve is a mobile web app. This means you don't need to download and install it. You can use it from a browser on computers, tablets and phones.
This article tells you which devices and browsers you can use.
Your device must have a microphone installed so you can record your speaking. There are instructions for setting up Android and iOS devices and desktop computers.
On Speak & Improve, you practise individual speaking skills or take complete tests:
There are examples of each speaking skill you can access immediately, without creating a user profile. To access all of the speaking skills or the complete tests and save your work, you will need to create a profile. See this article about creating a profile.
You will need to find a quiet place so you can record without noise. That way, Speak & Improve will work better. Try to plan your day to give you time to concentrate on working with Speak & Improve. You will need to have peace and calm, and time to focus on reading the questions, thinking about the answers, and recording them. Also, allow time to listen to your answers, view the feedback, and record again. The more you practise, the more you will improve!