If that's your concern then I'm afraid there's little we can do to change your opinion and perhaps 1Password isn't the solution for you.
I don't mean to sound rude or anything like that. Just being honest.
We have had grand visions of offering portions of our source (notably the cryptographic portions) available for review, note, not open source in the sense you can use it but in a license that makes it available for review purposes.
If 1Password.com was the sole solution we offered then open sourcing the entire app would be potentially feasible because our income wouldn't rely on people compiling their own version and editing out the license code. But it makes little sense for us to make that available if modified copies can be made available removing a chunk of our income.
For what it's worth, we have over 90 people who depend on AgileBits to provide paychecks so people can support their families. That's a heavy burden when your decisions can impact that many lives. I'm just a member of our team, not a founder or owner or anything but hopefully you can recognize this side of things.
We'd like nothing more than to do whatever we can to get users to trust us but there are limits to what we can do and still keep 1Password alive.
If you absolutely have to see the code in order to trust an application then there are other options out there, but they won't provide the same level of support, features, or hands off management. These are trade offs you have to make as an individual. Only you can make those decisions for you.
Every person at AgileBits uses 1Password, and we design it knowing we will be using it and we are all passionate about wanting our data secure. If we did something to put your data at risk, we did the same thing to ourselves. Just another view of that I suppose.
Kyle
AgileBits