kitio.aiPostfleet vs Revdoku
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Revdoku has the lower starting price: about $5 a month, against $7 for Postfleet.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Agent mailboxes
- Prompt injection screening
- Schema-based extraction
- Email classification
- REST and MCP access
- Mailboxes for agents
- Attachment storage
- Spam filtering
- Audit log
- API, MCP and CLI
| Feature | Postfleet | Revdoku |
|---|---|---|
| Best for | Email inboxes for AI agents with prompt-injection screening | Email inboxes with file storage for AI agents, via API and MCP |
| Category | Agents & automation | Agents & automation |
| Pricing model | Freemium | Freemium |
| Starting price | $7/mo | $4.99/mo |
| Free plan | Yes | Yes |
| Made by | Postfleet | Revdoku |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Revdoku has the lower starting price: about $5 a month, against $7 for Postfleet.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- 100 messages to JSON per month
- 3 mailboxes
- 3,000 sends per month
Starter
$7/mo
- 250 messages to JSON per month
- 5 mailboxes
- Email support
Pro
$20/mo
- 1,500 messages to JSON per month
- 10 mailboxes
- Custom sending domains
Scale
$200/mo
- 25,000+ messages to JSON
- 150 mailboxes
- Multiple custom domains
4 plans
Free
Free
- 3 mailboxes
- 3,000 incoming emails a month
- 500 sent emails a month
Starter
$4.99/mo
- Custom email domain
- 5,000 incoming emails a month
- 50,000 AI credits a month
Standard
$9.99/mo
- 10 mailboxes
- 100,000 AI credits a month
- Offer price, normally $19.99
Business
$24.99/mo
- 125 mailboxes
- 4 sub-accounts
- Offer price, normally $49.99
Prices in USD, checked Nov 5, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Postfleet
- Free tier with no card
- Strips hidden content before the model
- Typed JSON output
- Model checks capped by monthly limits
- Aimed at developers only
- Custom domains start on Pro
Revdoku
- Free tier with three mailboxes
- Works with several AI tools at once
- Every agent action is logged
- Free mailboxes may be deleted after 60 days idle
- Custom domains need a paid plan
- Current low prices are limited-time offers
Which one should you choose?
Choose Postfleet if you want:
- Free tier with no card
- Strips hidden content before the model
- Typed JSON output
Watch out: model checks capped by monthly limits.
Choose Revdoku if you want:
- Free tier with three mailboxes
- Works with several AI tools at once
- Every agent action is logged
Watch out: free mailboxes may be deleted after 60 days idle.
Postfleet vs Revdoku FAQ
What is the difference between Postfleet and Revdoku?
Postfleet: Email inboxes for AI agents with prompt-injection screening. Revdoku: Email inboxes with file storage for AI agents, via API and MCP. Both are agents & automation tools.
Is Postfleet or Revdoku cheaper?
Revdoku has the lower starting price: about $5 a month, against $7 for Postfleet.
Do Postfleet and Revdoku have free plans?
Postfleet: Yes. Revdoku: Yes.
Who makes Postfleet?
Postfleet is made by Postfleet.
Who makes Revdoku?
Revdoku is made by Revdoku.
Which should I choose, Postfleet or Revdoku?
Choose Postfleet if you value free tier with no card and strips hidden content before the model. Choose Revdoku if you value free tier with three mailboxes and works with several ai tools at once.