SuccessionKeeper is a private record of where your accounts, pensions, policies and documents are held. It is built and hosted in the United Kingdom, with no bank connection and no bank passwords, and it holds no client money or credentials. If you miss check-ins, reminders run for weeks 1 to 4 and a final warning follows in week 5, then a summary is released to your nominees. Logging in cancels the sequence.
It is a web app. Pricing is £4 a month or £39 a year, with a 14-day trial and no card required.
Most people know where their financial accounts are. The harder question is whether somebody else would know where to start. SuccessionKeeper exists to answer that without sharing passwords or giving anyone account access.