Privacy disclaimer: Algo is not focused on privacy, but prioritizes security. You host it yourself on a cloud instance, so you are attached to a single IP.
As an iphone user, I have not seen many good ad-blocking solutions and I sadly expect zero anonymity on mobile. Perhaps Disconnect was OK. I would like to know more if they exist.
Algo gives an option to install an adblocker on your vpn server and it seems to work fairly well. You can set it up in under half hour and destroy your $5 instance as needed. You can use on desktop if you want, but I prefer dynamic IP VPNs when possible.
Cook has gone so far as to call for tighter regulations on explicit user data sales, so likely not much there. Maybe in its ad platform aggregated data might be used.
The closest thing in that regard I could find was their mention of advertising sales in their quarterly report. Likely user data in some aggregated form is sold to sellers, like FB does
Here is one snippet on their ad efforts (from an unlinkable ad cancer adweek site):