Gittip and Flattr have fundamentally different models and focuses. Perhaps ironically, Flattr is more focused on tipping. It's about signaling one-time apprecia

Gittip and Flattr have fundamentally different models and focuses. Perhaps ironically, Flattr is more focused on tipping. It's about signaling one-time appreciation for a specific piece of work (an article, a video, etc). Gittip, on the other hand, is about providing a sustainable income for a person, hence the subscription giving model. Also worth mentioning that all of these companies (Gittip, Flattr, Patreon, others) seem to be on exceptionally good terms with each other, which is really nice to see.