To use your Boost coins, please follow the following steps:
1. From the homepage, select "Profile" and then "Missions"
2. Select chosen mission and activate it with Boost coins
3. Carry out the mission
4. Once mission completed, a "Success" screen will be shown and you can claim your rewards and embark on new missions
Note: If you run out of Boost coins to activate missions, you can participate in FREE missions to earn coins