PlusVibe
Stands out: Personal includes unlimited campaigns, AI sequence writing, and warmup at $37, with API on Business.
Watch out: API, webhooks, and AI reply agents start on Business at $77/mo. Agency is a demo from $497/mo.
Not the right fit for
- Senders who need API on the cheapest plan
- Teams that want LinkedIn steps in the same sequencer
SendKit
Stands out: Dedicated IPs plus warmup and a sequencer in one $99/mo listing, so you are not buying Mailforge mailboxes and Instantly on two bills.
Watch out: $99/mo is above Instantly ($47/mo) and Smartlead ($39/mo). Confirm how many inboxes and IPs the floor includes before you call it cheaper infra.
Not the right fit for
- Users who only need Gmail merge
- LinkedIn-first teams that do not send cold email