I co-founded and help run WriteMore.io, a online journal that helps encourage people to write every day. We've been totally free since launching and plan to keep it that way until we reach 3000-4000 sign ups (right now we are at about 500). I should also add that it's not really an option for us to add a free tier based on our product
I was curious to know what other founders have experienced with monetization? How many of your users stayed once you charged a subscription fee?
Ok, Here are my 2 cents on how you can monetize it by packaging your product a little bit different.
2)Integration with Twitter - Give them away to publish their thoughts on Twitter.
Keep your basic Journal app free, offer these addons, and charge them. Hope this helps!