If you are looking for free dating services specifically for Black and mature singles, several platforms offer free entry-level access, though most transition to paid "premium" models for full functionality.
This is one of the most targeted options for the specific combination of "Black" and "mature" (seniors).
These are not exclusive to Black singles but are the industry leaders for mature dating (ages 50+). BLK: Black Singles Dating App - Apps on Google Play
The website design is older compared to modern apps, and you may encounter more ads. 4. OurTime / SilverSingles