Google Trends
Checking whether a topic is rising before you write about it
Our verdict: Set-and-forget insurance for your archive: give it your Substack RSS feed and every new post gets a public Wayback Machine snapshot, a pinned IPFS copy and a private copy it stores. Brand new (launched Oct 26, 2026) and honest about its limits: each post is captured once, so later edits aren't saved, copies are HTML without images, and there's no export button yet. Keep using Substack's own export for a full backup.
Keeping an independent backup of every post you publish on Substack
Keep plan: 30 days free (no card), then $40/yr.
Source: official site (persistwise.com) + maker's launch post (blog.ninepointlabs.com/2026/10/persistwise-launch/, Oct 26, 2026)
2026-10-28
Note: Made by Nine Point Labs; independent, not affiliated with Substack. Wayback and IPFS copies are public, so only add feeds for writing you're happy to keep public.
Disclosure: We have no affiliate relationship with this vendor. StackKit is independent and not affiliated with Substack Inc. Spot an error? Email hello@stackkit.ink.
Checking whether a topic is rising before you write about it
Editorial calendars, idea banks and sponsor CRMs
Building a personal knowledge base of notes, quotes and ideas
Collecting highlights from books and articles to feed your writing
A simple kanban for drafts moving from idea to published
Automating busywork such as logging new posts to a spreadsheet or sending sponsor reminders