Hi there, you should give Neeva a try. Disclosure, I work for them, but we were the first to introduce a subscription, interest/growth has been really strong so far. Neeva offers a freemium model (free basic and premium for $5/Month which includes paid versions of VPN and a password manager), you can connect third party apps like dropbox and email putting all your personal docs in one search along with websearch, both versions are ad-free and private, it's available to anyone in U.S. and we are building our own independent stack to make the search experience unique and better.