kitio.aiSuperhuman Docs vs Inbox Zero
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Superhuman Docs starts at See pricing page and Inbox Zero starts at $20/mo. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Docs with relational tables
- Buttons and automations
- Packs integrations
- AI assistant
- Templates
- Plain-English email rules
- Reply drafting
- Bulk unsubscriber
- Cold email blocker
- Email analytics
| Feature | Superhuman Docs | Inbox Zero |
|---|---|---|
| Best for | Docs, tables and automations in one workspace, formerly Coda | Open-source AI email assistant for sorting, replies and unsubscribing |
| Category | Productivity | Productivity |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | $20/mo |
| Free plan | Yes | Yes |
| Made by | Superhuman | Inbox Zero |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Superhuman Docs starts at See pricing page and Inbox Zero starts at $20/mo. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- Create editable, shareable docs
- Basic inline suggestions
- Limited AI chat
Pro
₹1,250/mo
- Per member
- Chat and prompt from your cursor
- Connect Gmail, Slack, Calendar
- Build custom agents
Business
₹3,299/mo
- Per member
- Connect Jira, Linear, Asana, Zendesk
- More custom agents
Enterprise
Custom
- Salesforce, HubSpot, Workday connectors
- Enterprise security and admin
- Agent access controls
4 plans
Free
Free
- Email app free to use
Starter
$20/mo
- Per user
- AI sorting and labels
- Drafts replies in your voice
- Cold email blocker, bulk unsubscribe
Plus
$35/mo
- Per user
- 2 email accounts per user
- AI meeting notetaker
- Slack and app integrations
Professional
$50/mo
- Per user
- Team-wide analytics
- Priority support
- Dedicated onboarding manager
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Superhuman Docs
- Docs can work like apps
- Powerful formulas and tables
- Many integrations
- Steeper learning curve than plain docs
- Repricing after the rename
Inbox Zero
- Open source and self-hostable
- Flexible natural-language rules
- Handy cleanup tools
- Rules need tuning
- Smaller team behind it
Which one should you choose?
Choose Superhuman Docs if you want:
- Docs can work like apps
- Powerful formulas and tables
- Many integrations
Watch out: steeper learning curve than plain docs.
Choose Inbox Zero if you want:
- Open source and self-hostable
- Flexible natural-language rules
- Handy cleanup tools
Watch out: rules need tuning.
Superhuman Docs vs Inbox Zero FAQ
What is the difference between Superhuman Docs and Inbox Zero?
Superhuman Docs: Docs, tables and automations in one workspace, formerly Coda. Inbox Zero: Open-source AI email assistant for sorting, replies and unsubscribing. Both are productivity tools.
Is Superhuman Docs or Inbox Zero cheaper?
Superhuman Docs starts at See pricing page and Inbox Zero starts at $20/mo. Check both pricing pages for current plans.
Do Superhuman Docs and Inbox Zero have free plans?
Superhuman Docs: Yes. Inbox Zero: Yes.
Who makes Superhuman Docs?
Superhuman Docs is made by Superhuman, based in United States.
Who makes Inbox Zero?
Inbox Zero is made by Inbox Zero.
Which should I choose, Superhuman Docs or Inbox Zero?
Choose Superhuman Docs if you value docs can work like apps and powerful formulas and tables. Choose Inbox Zero if you value open source and self-hostable and flexible natural-language rules.