This plugin is a one of the best way to setup Push7 subscribe button.
When you use Push7 on your WordPress site,
you have to register and install Official plugin.
This plugin only provide Subscribe button interface.
[push7-sb]
[push7-sb id="YOUR_CUSTOM_APPID" type="BUTTON_TYPE"]
Options:
id
: Push7 AppIdtype
: Button type to show. r
(Count in right),t
(vertical balloon),n
(No count). default is n
This plugin is developing on GitHub