Login to your Bitso account, hover your username on top right and select Profile.
Click on API, then Add new API.
Fill in API Name (ex. CoinStats) and Transaction PIN. Don't forget to mark access to View Balances. Click Save.
You will see a screen like below with your Secret key.
Please make sure to copy/paste your Secret Key to a safe place, as it will only be displayed at the time it is created. If you lose this key, you will need to delete your API and set up a new one.
Click Back to my APIs to see your API Key.
Now go to CoinStats app Portfolio tab, swipe far to the right and click Connect Exchange.
Select Bitso from the list and paste your API Key and API Secret.
After clicking Submit you will see your Bitso portfolio synced with the CoinStats app.
Refer to support in case of further questions. Hope you'll enjoy!