If you like wako, you can contribute to it by making a donation via PayPal, you will become a premium user for life and you won't get any more advertising.
Please donate at least
20€ 15€ and enter your wako's user ID in the PayPal message, you will receive a push notification in wako to let you know it's been took care of).
Once done, you'll have to clear wako's cache (inside wako > settings > clear cache) and restart the app. That's it.
Do not forget to enter your wako's user ID. It can be found in wako > contribution