day3 vs. Kit (ConvertKit)
A Kit (ConvertKit) alternative built for product teams, not funnels.
Kit is built for creators growing audiences and sales funnels, and it prices by subscriber count.
| day3 | Kit (ConvertKit) | |
|---|---|---|
| Pricing model | By emails sent each month | By number of subscribers |
| Subscriber limits | Unlimited on every plan | Tiered — more subscribers cost more |
| Product scope | Product updates & newsletters, on purpose narrow | Creator funnels, sequences, commerce |
| Best for | Small SaaS & indie devs | Creators, newsletters, digital products |
| Starting price | $1/mo for 1,000 emails | Free tier, then priced by subscribers |
Comparison reflects each product's pricing model and scope, not specific prices — those change, so always check the latest on Kit (ConvertKit)'s own site.
The core difference
day3 is for software teams shipping product and telling users about it. Subscribers stay unlimited; you pay only for sends — so the bill stays flat as the list grows.
Why teams move to day3
Flat price as your list grows
Crossing the next subscriber threshold never bumps your bill. Sends are the only meter.
Made for product updates
Changelogs and 'what's new' emails, not sales sequences. The whole tool is shaped around that job.
AI writing help when you want it
Draft or rewrite a campaign with Claude — included on every paid plan.
When Kit (ConvertKit) is the better choice
Stay with Kit if you're a creator who leans on automated sequences, paid subscriptions, commerce, or visual funnels. day3 isn't a creator platform.
Questions
- Why switch from ConvertKit/Kit to day3?
- If you're a software team with a growing list you email occasionally, day3's send-based pricing usually costs less and fits closer than Kit's creator funnels.
- Does day3 have automated sequences like Kit?
- No — day3 leaves out automation and sequences. It sends one-off campaigns: product updates, changelogs, announcements.