Was Happy user for multiple accounts – Blue Mail - Email | Calendar Review

As noted by a previous review, without explanation, all I can get now is a screen which offers ‘ Add Google Account’ or ‘ Add New Account’. I want neither, but just to check the 3 accounts I already have in use. Thought all they required was accept new terms of service, but although an option there appears to be no ‘Accept’ button. Now looking for a new app.
Review by WheresThunderbird on Blue Mail - Email | Calendar.