I use Firebase. Most projects don't need more than the free tier. A few are on the paid tier; however, the monthly cost is covered by revenue and way below the

I use Firebase. Most projects don't need more than the free tier. A few are on the paid tier; however, the monthly cost is covered by revenue and way below the cost of running our own infra. I would not switch services/host a backend just to save a few hundred bucks. Call their bluff.