Folderly vs InboxWarm.ai
Folderly
folderly.comInboxWarm.ai
inboxwarm.aiSide by side
| Figure | Folderly | InboxWarm.ai |
|---|---|---|
| Price from | $4.67/mo | $5/mo |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 12 | 6 |
| Spec score · Email Warmup Software | 9.1 (#1) | 8.2 (#10) |
| Headquarters | 8 The Green STE 300, Dover, DE 19901, United States | 8 The Green, STE A, Dover, DE 19901, US |
| Integrations | Folderly says it connects to major email service providers through API and SMTP and supports custom providers. | Supported sending setups include Gmail, Outlook, SendGrid, Amazon SES, Mailgun, Yahoo, and custom SMTP/IMAP. |
| Security | Folderly says its security program is supported by SOC 2 Type II and ISO 27001. | InboxWarm says credentials are encrypted end-to-end, never stored in plain text, and can be deleted with account data from the dashboard. |
| Support | The site offers tailored expert support and lists [email protected] and +1 302 202 4044 as contact details. | InboxWarm says its support team is available 24/7 by email at [email protected]. |
| What it does | Folderly is a B2B email-deliverability suite for diagnosing, fixing and monitoring inbox placement. | InboxWarm.ai automatically warms Gmail, Outlook, and SMTP inboxes to build sender reputation, improve inbox placement, and reduce spam placement. |
Plans
Folderly
- Inbox Insights FreeFree
- PulseFree
- Folderly — 25–99 mailboxes$56 a year
- Folderly 25–99 mailboxes (yearly)$56 a month
- Folderly — 10–24 mailboxes$72 a year
- Folderly 10–24 mailboxes (yearly)$72 a month
- Inbox Insights Monthly$79 a month
- Folderly — 1–9 mailboxes$96 a year
- Folderly 1–9 mailboxes (yearly)$96 a month
- Inbox Insights Yearly$799 a year
InboxWarm.ai
- 51–100 mailboxes$5 a month
- 21–50 mailboxes$6 a month
- 6–20 mailboxes$8 a month
- 2–5 mailboxes$11 a month
- 1 mailbox$15 a month
- Custom & enterprisePriced on request
In their own words
Folderly
Folderly is a suite of AI and email deliverability tools for B2B teams. It combines campaign drafting with checks and monitoring intended to help assess email placement and sender reputation. Inbox Insights reviews inbox placement along with sending IP and domain signals before a campaign; its free plan includes 2 tests per month. Pulse tracks placement over time, and real-time alerts are available for free. Folderly AI turns an offer, audience, and goal into a campaign draft and directs users to relevant checks. Other tools cover DMARC reports, public DNS and IP inspection, email HTML previews, and real-message testing; DMARC is a pilot and Mirror is in beta. Folderly says it connects to email service providers through API and SMTP, supports custom providers, and names Amazon AWS, Sendpulse, Elastic Email, Google Workspace, SendGrid, and Microsoft Outlook. Product availability, access, and plans vary by product. Listed options include Inbox Insights Monthly at $79 a month for 100 tests and Inbox Insights Yearly at $799 a year for 100 tests per month. Folderly mailbox plans list a minimum commitment and per-mailbox monthly amounts, billed yearly.
InboxWarm.ai
InboxWarm.ai automatically warms Gmail, Outlook, and SMTP inboxes to build sender reputation, improve inbox placement, and reduce spam placement. It sends, opens, and replies to warmup messages using contextual replies generated by large language models and human-like sending patterns. InboxWarm describes its seed network as private and made up of real inboxes. Its spam recovery feature marks warmup messages as not spam and moves them to the primary inbox when they land in spam. Supported setups include Gmail, Outlook, SendGrid, Amazon SES, Mailgun, Yahoo, and custom SMTP/IMAP. Plans include SPF, DKIM, and DMARC domain-health monitoring and real-time inbox-placement tracking. Every plan includes a public REST API with 30 endpoints; the default rate limit is 20 requests per minute per API key. Monthly prices range from $15 a month for one mailbox to $5 a month for 51–100 mailboxes, with up to 100 warmup emails per inbox per day on those listed tiers. A 10-day trial covers one email account without a credit card.