Feder and Kit: keep Kit, check the numbers you run on.
No, Feder is not a replacement for Kit. Keep Kit. Feder does a different job beside it: it reads what your connected apps recorded and compares each number with your own history, so you know when one cannot be trusted.
Why would I need this?
Because the question is not what the number is. It is whether you can trust it.
Is Feder an alternative to Kit?
No. Kit, formerly ConvertKit, is an email marketing and newsletter platform built for creators. Feder does a different job: it watches the numbers your tools record and says when one cannot be trusted. Nothing here asks you to switch.
Do I need Feder if I have Kit?
They do different jobs, so one does not stand in for the other. Keep Kit for the job it does. Feder's job is to say when a number your tools record has gone quiet or moved outside your own history.
What does Kit do better?
Kit can show where new subscribers came from, by tagged links and top referring sites.
In Kit's words:
Track UTM parameters and top referrers in one clear view, so you can focus on what works best.
Know exactly what grows your list with attribution data, read 2026-11-12.Kit can show website visitors next to subscriber growth.
In Kit's words:
The Acquisition dashboard in Insights helps you monitor your website visitor and subscriber growth.
Insights: Using the Acquisition dashboard, read 2026-11-12.Kit can show how quickly people go from visitor to subscriber to customer.
In Kit's words:
The Velocity dashboard in Insights tells you how quickly you’re converting users to subscribers and customers.
Insights: Using the Velocity dashboard, read 2026-11-12.
What can go wrong with Kit's numbers?
Kit says plainly that open rates are not always accurate, and its help pages explain why.
In Kit's words:
Unfortunately, open rates are not always accurate.
What are open rates and how are they calculated?, read 2026-11-12.Kit notes that spam filters can open an email automatically, so some counted opens can come from a filter rather than a person.
In Kit's words:
Spam filters can also automatically open emails before your subscriber has any chance of opening them.
What are open rates and how are they calculated?, read 2026-11-12.Kit's attribution counts visits to its own forms and landing pages only, so visits to other pages on a site are not part of it.
In Kit's words:
Also, we capture only visits to Kit Forms and Landing Pages.
Know exactly what grows your list with attribution data, read 2026-11-12.
How does Feder work with Kit?
- Feder has no connection to Kit today, so it reads nothing from it.
- The two can run side by side: Kit keeps doing its job, and Feder checks the numbers your other tools record against your own history.
- Feder only reads. It never changes anything in a connected app.
What should I ask about my Kit setup?
- Which numbers on my dashboard are counted at the source, and which are modeled or estimated?
- If this number stopped counting tomorrow, who would notice, and when?
- What does a normal week look like for this number, in my own history?
Questions owners ask
- Does Feder replace Kit?
- No. Keep Kit. Feder sits beside it.
- Does Feder send data into Kit?
- No. Feder only reads.
- How accurate is Feder?
- We do not publish an accuracy number yet. When there is a measured one, it will be here with how it was measured.
Where do these claims come from?
Every quoted statement about Kit on this page comes from Kit's own pages, quoted above with the date we read them. We read them again by 2027-05-11. If one changes, this page changes or comes down.