Start with three questions before you compare brands. Which devices and browsers do you need the vault on every day? Is the password manager already built into your phone or browser enough, or do you need something that works across platforms? And what would you do if you forgot your master password? Your answers rule out more options than any feature list will.

Read in this order. First, read the guide on browser and phone password managers versus a dedicated vault, plus the free-plan comparison, so you know what you get without paying. Next, read the platform guide for your main device (iPhone and Mac, Android or Linux). Then read the passkeys, authenticator and master-password recovery guides, because these settings are hard to change after you have moved in.

Read the head-to-head comparisons and single-product reviews last, once you are down to two candidates. Each one gives the plan limits and renewal terms with dated sources, so check the dates before you buy. If autofill stops working after you switch, the fix-it checklist follows each vendor's own troubleshooting steps.