Inbox Monster
6.0#17 in email testing softwareFrom $3,750 a yearWeb
VisitInbox Monster vs Mailinator
Mailinator
7.8#2 in email testing softwareFrom $79 a monthFree planAndroidWebAPIExtension
VisitWhat both publish
| Fact | Inbox Monster | Mailinator |
|---|---|---|
| Headquarters | United States | Ann Arbor, Michigan, USA |
| Integrations | Documented integrations include Salesforce Marketing Cloud, Braze, Iterable, SparkPost, Twilio SendGrid and Amazon SES. | Inbound webhooks can accept HTTP POST messages from sources such as alert systems, Zapier, or Twilio and apply configured rules. |
| Purpose | Inbox Monster provides tooling for creative rendering, inbox intelligence and email deliverability for global email teams. | Mailinator provides temporary inboxes and email and SMS workflow testing for developers, QA teams, and businesses. |
Inbox Monster plans
- Essential (Creative suite)$3,750 a year
- SMS suite$6,000 a year
- Advanced (Creative suite)$6,500 a year
- Enterprise (Creative suite)$10,000 a year
- Deliverability suite$15,000 a year
Mailinator plans
- Public - FreeFree
- Verified ProFree
- Business (annual)$79 a month
- Business$99 a month
- Business Plus (annual)$159 a month
- Business Plus$199 a month
Pick Inbox Monster if…
It suits global email teams needing creative previews, quality assurance, deliverability, reputation, or SMS testing. Web access, API access, and documented marketing-platform integrations support technical workflows.
Pick Mailinator if…
It suits developers, QA teams, and businesses testing email or SMS workflows, especially where API or CI/CD integration is useful. Public inboxes are for messages that do not require privacy.