Send messages, run your auto-reply bots and add contacts straight from your phone - many at once, or your whole phonebook with one tap.
Install AppTap the green "Install App" button on this page.
Open the downloaded file. If the phone asks, allow "Install unknown apps" for your browser - only once.
Open "mysender" and log in with your usual email and password.
Go to Contacts, then "Add from phone", pick a group and add contacts.