kitio.aiSaneBox vs Inbox Zero
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. SaneBox 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
- Automatic email sorting
- Daily digests
- SaneBlackHole
- Follow-up reminders
- Works with any client
- Plain-English email rules
- Reply drafting
- Bulk unsubscriber
- Cold email blocker
- Email analytics
| Feature | SaneBox | Inbox Zero |
|---|---|---|
| Best for | AI email filtering that moves unimportant mail out of your inbox | Open-source AI email assistant for sorting, replies and unsubscribing |
| Category | Productivity | Productivity |
| Pricing model | Free trial | Freemium |
| Starting price | See pricing page | $20/mo |
| Free plan | No, 14-day trial | Yes |
| Made by | SaneBox | Inbox Zero |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
SaneBox 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
- 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
SaneBox
- Works with any email app
- Set-and-forget filtering
- Long track record
- No free plan
- Occasionally misfiles messages
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 SaneBox if you want:
- Works with any email app
- Set-and-forget filtering
- Long track record
Watch out: no free plan.
Choose Inbox Zero if you want:
- Open source and self-hostable
- Flexible natural-language rules
- Handy cleanup tools
Watch out: rules need tuning.
SaneBox vs Inbox Zero FAQ
What is the difference between SaneBox and Inbox Zero?
SaneBox: AI email filtering that moves unimportant mail out of your inbox. Inbox Zero: Open-source AI email assistant for sorting, replies and unsubscribing. Both are productivity tools.
Is SaneBox or Inbox Zero cheaper?
SaneBox starts at See pricing page and Inbox Zero starts at $20/mo. Check both pricing pages for current plans.
Do SaneBox and Inbox Zero have free plans?
SaneBox: No, 14-day trial. Inbox Zero: Yes.
Who makes SaneBox?
SaneBox is made by SaneBox, based in United States.
Who makes Inbox Zero?
Inbox Zero is made by Inbox Zero.
Which should I choose, SaneBox or Inbox Zero?
Choose SaneBox if you value works with any email app and set-and-forget filtering. Choose Inbox Zero if you value open source and self-hostable and flexible natural-language rules.