We use 1Password, and we have it set up to sync to our phones (and one computer) via Dropbox - this way, my husband and I each have access to the other’s passwords at need.
I remember that was a bit of a pain to set up at first: we’d bought the phone versions, but could not do the initial Dropbox sync without having the desktop version, which was extra $$. But we could use the free trial version for the one-time sync, and after that it would work without the desktop version.
A couple years back they tweaked things so that I had to update the vault format on my phone (Android; my husband is on an iPhone). By then I’d purchased the desktop version, as i was finding it useful. So our copies diverged at that point; previously, if he put in an entry for a site, a little while later I’d see it on my phone.
Then not long after that, they went with a monthly subscription model, which is a new and annoying-as-hell trend. 5 bucks a month. Forever. There was some additional functionality (no longer needed to use Dropbox, they’d host and sync using THEIR servers) but in far less than a year I’d have paid more than the initial license cost. Terminating the subscription would, I think, allow access to existing passwords, but no updates going forward.
They DO still have a one-time-only purchase option, where you can configure it to use Dropbox for syncing, but they made it very tough to find out how to do that. It took me a fair bit of digging but I managed it.
They do have browser plugins that will auto-populate passwords, let you generate passwords on the fly, and save ones that you’ve typed into the browser, but I had some issues with that and haven’t used it in a while. It may well be working more smoothly now. Instead, I just launch the 1Password desktop app and copy/paste as needed.
All in all: it works, but it’s a spendy option; if I were starting from scratch, I might look at the other options.
As far as access in case of death: my husband’s vault and mine (separate now due to that update) use the same master password, and we know each other’s phone unlock code, so we can get to whatever we need that way. If we both go down at the same time, I guess I’d have to write down the master password, as well as the desktop unlock code, and say “lookie there for the keys to the kingdom”. I might actually do that, plus our Dropbox password, and seal it in an envelope in a filing cabinet.
Just for giggles, I took a look at my vault to see how many entries it had. Over 750!
Not all of those are logins - things like our SSNs, credit card numbers and so on are also in there. But well over 650 are logins. How on earth would one manage WITHOUT such a tool?