User blog comment:Phineas99cp/Who's to blame? Club Penguin or the community?/@comment-302495-20150407225107/@comment-4958019-20150408020140

Actually you can play the mobile apps even without Internet. However, if you want to install the app to be playable WITHOUT Wi-Fi connection, it'd take a lot more space than if it was playable WITH Wi-Fi connection only (at least with the CP App).

I tried installing the app in my mom's (Android) cellphone and CP appeared in Google Play.