Sorry to be a little late to this thread. Yes Poodll is quite safe to use with Chrome or Firefox.
In Poodll there are several recorders. The 123 and BMR (Burnt Rose) are probably the best. You can try it out at https://demo.poodll.com
Moodle Mobile is not supported yet ... but with any luck we can do that soon. But the mobile browser works well for audio and video on Android. Audio for iphone.
I suppose nobody has more experience with Poodll than me ... thats because I am the Poodll guy. (I get all the credit and all the blame. )