Body fat tracking etc

like this?

https://www.bargainhardware.co.uk/emc-hitachi-huh728080aln600-8tb-lff-3-5in-sata-iii-6gbps-7-2k-128mb-hdd-118000115

I get what you mean, but the speaking excersizes involve them recording me speak. That is kinda sketchy in my opinion. It also uses adverts, so transparency is kinda important (again, in my opinion)