The rate is $0.24 per 1000 API calls. You are thinking about the “free tier”. Before, all calls were free, and even if there were per-app/per-user limits buried in the docs they were not enforced. After the announcement there was some confusion about whether the new “free tier” limits are per-user or per-app, and turns out they are indeed 10 calls/minute per app! The free tier is for developer testing basically, it cannot be used for a mass market app. So the rate calculation hasn’t changed, it was introduced to kill off free apps.
The rate is $0.24 per 1000 API calls. You are thinking about the “free tier”. Before, all calls were free, and even if there were per-app/per-user limits buried in the docs they were not enforced. After the announcement there was some confusion about whether the new “free tier” limits are per-user or per-app, and turns out they are indeed 10 calls/minute per app! The free tier is for developer testing basically, it cannot be used for a mass market app. So the rate calculation hasn’t changed, it was introduced to kill off free apps.