TLDR; Before you got 18 hours a day per app on the free tier (5 apps max) Now you get 550 hours per month in total for all your free apps (so 18 hours a day for all your apps instead of per app). It's clear they are trying to kill the free dynos but who can blame them? Heroku is still good if you need simple scaling and load balancing for commercial projects. Heroku main selling point use to be easy deployment , but…
Get a €2.99/mo Scaleway VPS (2GB memory, 50GB SSD), install Dokku - http://dokku.viewdocs.io/dokku/ - and you basically have a Heroku-like environment for next to nothing (especially as you can host a bunch of apps on that single instance).
(Update: Didn't know Scaleway was still queued up for signups. Replace with DigitalOcean for $5 if you're in a rush - and host fewer apps per box ;-))