My side projects, feedback request

I am creating several projects on top of Blockstack. Most of them are serverless and I will opensource all of them by next month. Would love to hear suggestions on how I can improve the reach of our apps. The goal is to improve SEO and get traffic from there, does this scale? Is it possible for a single studio launch several apps that become popular only relying on search engines?

pNotes is a private space for notes

SafeNotes is an encrypted pdf annotation tool

BitPatron is a decentralized patreon alternative

Photo Vault is an encrypted Google Photos alternative

PDFstack is a pdf split & merger tool

Bitcoin4Photos is a marketplace to buy and sell stock photos

pForms is a simple yet powerful form builder

MiniHabits is a private habit tracker

Memocards is a flashcards app

Moodify is a private mood tracker

pBookmarks is a decentralized bookmark manager

Any feedback would be appreciated.