Personally, the 'free tiers' offered by the big PAAS and cloud providers are good enough for small projects and MVPs-- can't beat free. If and when extra resources are needed, it's usually easier to just start paying at that point rather than to switch platforms entirely.
Free tiers are are extremely effective (albeit crafty) in a "the-first-one-is-on-the-house" kinda way.
Free tiers are are extremely effective (albeit crafty) in a "the-first-one-is-on-the-house" kinda way.