You might want to mention if you're only looking for those with source codes ^{[to check if you can reproduce them]} or not, but I'll list one for each:

• Guarda - On some review sites, they're claiming it's open-source, but AFAIK it's "not" completely open-source + it's connected to "Changelly ^{[the same goes for Atomic]}"!
• Jaxx - Closed-source.

Note: I would not recommend using either of them to store anything ^{[especially the first one]}!