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. Automations with triggers, waits and branches are designed but not shipped, so don't pick day3 on the strength of them.

Can I move my Kit subscribers without losing opt-outs?

Yes. Import your suppression list first, then the contacts. Anyone already unsubscribed imports with that status and the date they left, so a migration can't re-subscribe someone who opted out of your Kit list.

Is day3 cheaper than Kit for a large list?

For a large list mailed occasionally, usually yes, because Kit's meter is subscribers and day3's is sends. The comparison flips if you mail the same list very frequently: at high send volume against a small list, per-subscriber pricing can be the cheaper shape. Work it out on your own numbers rather than taking our word for it.

All comparisons

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 and transactional email, on purpose narrow	Creator funnels, sequences, commerce
Cost of a quiet month	Nothing changes. The meter only moves when you send	The subscriber bill arrives either way
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, because 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.

The same numbers, both ways

25,000 subscribers built up over two years, emailed once a month when something ships.

On day3

$8/mo

25,000 sends a month fits the 25,000-email plan. 25,000 subscribers costs nothing, on this plan or any other.

On Kit (ConvertKit)

Depends

Per-subscriber pricing charges for all 25,000 every month, and crossing the next subscriber threshold raises the bill without you sending anything more. We don't print their price here, because it changes and a stale figure would be worse than none. Check it on their own site and run these numbers through it.

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 and isn't trying to become one. Stay too if your email *is* the product rather than an announcement channel for it, because Kit has built a decade of tooling for that and day3 has deliberately built none of it.

Moving your list across

Five steps, in this order. The first one is the one people skip.

1

Bring your suppression list first

Push the addresses that bounced, complained, or asked never to be mailed again before you import a single contact. Do it in this order and day3 refuses those rows on the way in, which is the guard working rather than an error. Do it after and you have a window where a re-import can mail someone who already left.

2

Import the contacts

Export your Kit subscribers to CSV and upload with email, first_name and last_name. day3 dedupes and skips anyone suppressed. If you'd rather script it, the API takes 1,000 contacts per call and upserts by email, so re-running is safe.

3

Carry the opt-outs across as opt-outs

Contacts already marked unsubscribed import with that status and the date they left on, so your new tool honours a decision made in your old one. Nobody gets re-subscribed by a migration.

4

Verify the sending domain

Connect Cloudflare and day3 publishes DKIM, SPF and DMARC for you, then rechecks until the domain verifies. On another DNS host you get the records to paste. Authenticating the domain you already send from is what keeps your reputation intact through the move.

5

Send one real campaign to yourself

A test send goes to addresses you name, through the same pipeline and the same tracking as the real thing. Compare it against your old tool's output before you point the whole list at it.

What doesn't come across

Sequences and visual automations don't come across, because day3 doesn't have them: automations are designed but not shipped. Neither do paid subscriptions, commerce, or Kit's creator network. If a running sequence is doing real work for you, that work stops at the move rather than transferring.

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. Automations with triggers, waits and branches are designed but not shipped, so don't pick day3 on the strength of them.
Can I move my Kit subscribers without losing opt-outs?: Yes. Import your suppression list first, then the contacts. Anyone already unsubscribed imports with that status and the date they left, so a migration can't re-subscribe someone who opted out of your Kit list.
Is day3 cheaper than Kit for a large list?: For a large list mailed occasionally, usually yes, because Kit's meter is subscribers and day3's is sends. The comparison flips if you mail the same list very frequently: at high send volume against a small list, per-subscriber pricing can be the cheaper shape. Work it out on your own numbers rather than taking our word for it.