After my last anchor alarm stopped sending remote alarm notifications, I got on a mission to find the best replacement and after the last month of testing I have settled on Anchor Alarm Pro as the winner.

It had 90% of the features I required, was free and after a few messages to the developer, it now had 100% of the features I wanted.

I sent feedback messages to most other apps and never got any responces although I do think EH Anchor Alarm deserves a honourable mention.