InInbox
6.2#137 in email marketing softwareFrom R$300 a monthWeb
VisitInInbox vs Substack
What both publish
| Fact | InInbox | Substack |
|---|---|---|
| Free plan | No | Yes |
| Infrastructure | The company says it uses non-shared environments and balanced IPs. | The service provides managed email delivery, CDN-hosted media, real-time messaging infrastructure, multilingual settings, MFA and privacy controls. |
InInbox plans
- ININBOX 1R$300 a month
- ININBOX 2R$400 a month
- ININBOX 3R$600 a month
- ININBOX 4R$700 a month
Substack plans
- Free publishingFree
- Free to startFree
- Custom domain$50, paid once
- Paid subscriptions—
Pick InInbox if…
You want what its maker publishes above — check its page for the details.
Pick Substack if…
Substack suits writers, journalists, podcasters, video creators, experts, educators, and media companies building a direct subscriber audience. It is useful for creators who want multiple media formats, audience discovery, segmentation, email automation, and paid subscription options.