kitio.aiHowie vs Clean Inbox for Gmail
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Howie starts at See pricing page and Clean Inbox for Gmail starts at See pricing page. 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
- Email-based scheduling
- Availability checks
- Preference learning
- Rescheduling
- Calendar event creation
- Plain-language filter creation
- AI email classification
- Installable filter categories
- Blocked and allowed senders
- Label-only, no deletion
| Feature | Howie | Clean Inbox for Gmail |
|---|---|---|
| Best for | AI scheduling assistant you CC on email to book meetings | Gmail add-on that writes filters from plain words and labels clutter |
| Category | Productivity | Productivity |
| Pricing model | Free trial | Freemium |
| Starting price | See pricing page | See pricing page |
| Free plan | No, trial available | Yes |
| Made by | Howie | Codemoon |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Howie starts at See pricing page and Clean Inbox for Gmail starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
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
Howie
- No scheduling links needed
- Handles back-and-forth replies
- Learns your preferences
- Only works through email
- Paid service for most users
Clean Inbox for Gmail
- No filter syntax to learn
- Never deletes your email
- Runs on Google Cloud with Gemini
- Works with Gmail only
- Pricing not listed in the evidence
- Relies on labels rather than deletion
Which one should you choose?
Choose Howie if you want:
- No scheduling links needed
- Handles back-and-forth replies
- Learns your preferences
Watch out: only works through email.
Choose Clean Inbox for Gmail if you want:
- No filter syntax to learn
- Never deletes your email
- Runs on Google Cloud with Gemini
Watch out: works with gmail only.
Howie vs Clean Inbox for Gmail FAQ
What is the difference between Howie and Clean Inbox for Gmail?
Howie: AI scheduling assistant you CC on email to book meetings. Clean Inbox for Gmail: Gmail add-on that writes filters from plain words and labels clutter. Both are productivity tools.
Is Howie or Clean Inbox for Gmail cheaper?
Howie starts at See pricing page and Clean Inbox for Gmail starts at See pricing page. Check both pricing pages for current plans.
Do Howie and Clean Inbox for Gmail have free plans?
Howie: No, trial available. Clean Inbox for Gmail: Yes.
Who makes Howie?
Howie is made by Howie, based in United States.
Who makes Clean Inbox for Gmail?
Clean Inbox for Gmail is made by Codemoon.
Which should I choose, Howie or Clean Inbox for Gmail?
Choose Howie if you value no scheduling links needed and handles back-and-forth replies. Choose Clean Inbox for Gmail if you value no filter syntax to learn and never deletes your email.