WHAT YOU ARE ACTUALLY PAYING FOR
A solicitor does not gather your information. You do.
This is the part most people do not realise until they are in it. When you instruct a solicitor for probate, you still collect all the estate information yourself. The bank balances, the property valuations, the pension details, the gift history. That work is yours either way.
What the solicitor does is take that information and complete the forms, the calculations and the inheritance tax. That is exactly what the platform does, automatically, for £499.