EmailWarmup.com vs InboxPlan
EmailWarmup.com
emailwarmup.comInboxPlan
inboxplan.comSide by side
| Figure | EmailWarmup.com | InboxPlan |
|---|---|---|
| Price from | $29/mo | — |
| Free plan | — | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | — |
| Plans published | 2 | 0 |
| Spec score · Email Warmup Software | 8.2 (#8) | 7.7 (#18) |
| Headquarters | Canada | San Francisco, California, United States |
| Integrations | The homepage lists Salesloft, Outreach, Apollo, Instantly, Smartlead, Reply.io, Lemlist, Mailshake, Woodpecker, Mixmax, HubSpot, Salesforce, Pardot, Marketo, Eloqua, Klaviyo, Mailchimp, Make.com, and n8n. | The site says users can connect Gmail, Outlook, Zoho, or custom SMTP accounts. |
| Purpose | EmailWarmup.com describes itself as an email deliverability platform offering personalized warmup, mailbox monitoring, automated rotation, and deliverability support. | InboxPlan provides automated email warm-up, smart scheduling, and deliverability analytics to help emails reach the inbox. |
| Trial | The pricing page has a “Try for Free” call to action for the Pro plan but does not state a trial duration. | The homepage advertises a 7-day free trial and says a credit card is required. |
Plans
In their own words
EmailWarmup.com
EmailWarmup.com has no write-up on Specifiction yet; its figures are above.
InboxPlan
InboxPlan is a web service for automated email warm-up, scheduling, and deliverability monitoring. It creates warm-up messages and simulated two-way conversations tailored to a user's industry, then schedules activity with randomized send windows and a gradual increase in volume. InboxPlan says sending typically starts at 3–5 emails per day in week one and reaches 30–50 per day by week four; users can set manual limits for each account. A live monitor tracks sender score, inbox placement, and spam rates across major providers. Users can connect Gmail, Outlook, Zoho, or custom SMTP accounts and warm multiple mailboxes in one workspace, subject to the plan's account allowance. Each account receives its own threads, schedule, and reputation dashboard. InboxPlan says it uses OAuth and does not store account passwords. It names sales teams, agencies, and startups among its intended users, as well as businesses in SaaS, recruiting, real estate, finance, and e-commerce. The service is paid, with no free plan, and offers a 7-day free trial that requires a credit card. InboxPlan was founded in 2022 and is headquartered in San Francisco, California.