I have curated a list of free tools, services, and apps that startups could and in fact should use to grow at the initial stage. Free doesn’t mean they lack quality, instead these free tools are from top-notch companies like RedHat, Google, Asana, GitHub and in all areas from infrastructure to version controlling to marketing and sales to project management.
Have a look at this list here and don’t forget to give your feedback.
I compiled this list a long time ago and recently updated it but it still might have some outdated links that I didn’t get chance to update yet. Feel free to let me know and I’ll update it.