Electrum is good for Android but you can not sign a message on your phone with Electrum (for Android). You will not be phished if you download the app from their site, not from Google Play (as a result of app you get from Search in Google Play). There are many fake apps in Google Play (is this the negative reviews you told?)

https://electrum.org/#download. Visit it and click on Google Play to download the app for your Android phone. If you hove the mouse on Google Play hyperlink you will see the link: https://play.google.com/store/apps/details?id=org.electrum.electrum

The legit Electrum app will have the info (you will see it after the installation, click on About (right corner)