Yes. Our Comoros plans give you mobile data on the islands, starting at $6.99 for 1 GB over 7 days. They are data only, and the days start when the eSIM first connects in the Comoros, not when you buy it.
If you are heading to Grande Comore, Anjouan or Moheli, buy your data before you go. Arrival logistics here are not the place to also be solving a SIM card.