A few thought :<p>1&#x2F; parse wasn&#x27;t a core service for facebook, nor a relevant source of a revenu AND their API wasn&#x27;t standard. Those points combined made it very risky for people to use it.<p>2&#x2F; since they open sourced their API now, and the service was a paid service, there&#x27;s a very high probability that someone will very soon create a 100% compatible PAAS.<p>3&#x2F; firebase will be next to shutdown. Not because they suck, but simply because they&#x27;re exactly in the same case (proprietary,non standard, critical technology, held by a company who don&#x27;t really care about it for its money service).   People won&#x27;t sign up on firebase anymore, so they will have to shut down quite soon.<p>4&#x2F; Every non core project run by facebook should be looked upon with extra caution now. Yes, that includes occulus. They&#x27;re clearly not going to sell many devices, and gaming console maker (aka Sony) will have the lion&#x27;s share of the gaming market. So, expect fb to shut it down in 2 or 3 years if it doesn&#x27;t get a very large marketshare (the only use case large enough i can think of that is not gaming being porn).<p>5&#x2F; I personnaly would be really hesitant now to run on something like google app engine. I wouldn&#x27;t be surprised to see google and microsoft moving forward api standardization for core cloud services on a much faster pace. Except amazon, nobody is really safe now.