I made a guide for doing this with Signal using Frida if you can jailbreak. https://github.com/hsorbo/signal-backup-ios
8 karma · joined October 6, 2014
http://www.splendidtable.org/story/theres-more-than-one-way-...
he has a video demonstrating temperatures https://www.youtube.com/watch?v=GpvbNG1Dzhk
Guess it boiles down to personal preference