Well StackMob shut down, and Bing Maps are getting more and more expensive... while it&#x27;s not that difficult to replace a BaaS, it&#x27;s another matter for map services. And it&#x27;s going to get more expensive no question.<p>The time of the freebies for web-development is going to be over soon . I wouldn&#x27;t trust any service, from Github to google API A or B, to remain free for ever. Especially Github which is moving to &quot;enterprise&quot; at a fast pace. 
As for PaaS or Saas, given how many businesses closed last year, the remaining offers will certainly get more expensive and any free tier discarded.<p>But the initial issue is certainly the business model. If you can&#x27;t even pay for hosting anymore, you need to raise prices. A one time buy wasn&#x27;t going to cover all the author&#x27;s expenses.