Login to your Poloniex account and click API KEYS
Click on Enable API if its was not enabled before
You should get an confirmation email. Please check your email to confirm.
Add new API key by making sure to add your 2FA code if enabled (we highly recommend using 2FA authentication for your security).
If your 2FA is enabled you need to enter Authenticator code here.
You need to check your email and confirm previous action.
After clicking Ok, it will show your Key and Secret. Please note that Secret will be hidden after you close this window.
Now go to Coin Stats app Altfolio tab, scroll far to the right and click Add new portfolio by Selecting Exchange (API KEYS).
Click QR and scan the QR code presented by Poloniex or copy/past your KEY and Secret Manually.
After clicking Add you will see your Poloniex portfolio synced with the Coin Stats app.