Just to inform people: SimplyPlural is being discontinued the earliest of June. There are not many alternatives, as many new apps are barely developed and hard to use, as for Octocon defending pedophilia. You can find that https://www.tumblr.com/octoconbeware. I suppose the best thing that can be done is use Pluralkit, Tupper, or use Obsidian, GoogleDocs, etc. If anyone has alternatives they'd like to share be free.