kitio.aiAI Toolbox vs Sheldon
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Sheldon is completely free, while AI Toolbox is freemium.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Chat folders and pins
- Cross-AI full-text search
- Bulk export to PDF and Markdown
- Prompt library and chaining
- Smart tags
- Keyboard shortcut on any site
- Email reply drafts
- Excel formula help
- Code and blog generation
| Feature | AI Toolbox | Sheldon |
|---|---|---|
| Best for | Browser extension adding folders, search and export to AI chats | Chrome extension that drafts emails, formulas and code on any site |
| Category | Productivity | Productivity |
| Pricing model | Freemium | Free |
| Starting price | $9.99/mo | Free |
| Free plan | Yes | Yes, fully free |
| Made by | AI Toolbox | Sheldon |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Sheldon is completely free, while AI Toolbox is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- 2 folders and 2 bookmarks
- 10 saved prompts
- TXT export
ChatGPT Monthly
$9.99/mo
- One AI module
- Unlimited search and folders
- PDF, Markdown and bulk export
ChatGPT Lifetime
$99 one-time
- One AI module
- Lifetime updates
- Priority support
All Access Lifetime
$199 one-time
- All four AI modules
- Future modules included
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
AI Toolbox
- Works across four AI assistants
- Lifetime license option
- Useful free tier with TXT export
- Paid plans unlock one AI at a time
- Chrome and Edge only
- Free search shows only the first results
Sheldon
- Free to install
- Works inside the sites you already use
- Handles many small writing jobs
- Chrome only
- Thin wrapper around ChatGPT
- Little detail on privacy or limits
Which one should you choose?
Choose AI Toolbox if you want:
- Works across four AI assistants
- Lifetime license option
- Useful free tier with TXT export
Watch out: paid plans unlock one ai at a time.
Choose Sheldon if you want:
- Free to install
- Works inside the sites you already use
- Handles many small writing jobs
Watch out: chrome only.
AI Toolbox vs Sheldon FAQ
What is the difference between AI Toolbox and Sheldon?
AI Toolbox: Browser extension adding folders, search and export to AI chats. Sheldon: Chrome extension that drafts emails, formulas and code on any site. Both are productivity tools.
Is AI Toolbox or Sheldon cheaper?
Sheldon is completely free, while AI Toolbox is freemium.
Do AI Toolbox and Sheldon have free plans?
AI Toolbox: Yes. Sheldon: Yes, fully free.
Who makes AI Toolbox?
AI Toolbox is made by AI Toolbox.
Who makes Sheldon?
Sheldon is made by Sheldon.
Which should I choose, AI Toolbox or Sheldon?
Choose AI Toolbox if you value works across four ai assistants and lifetime license option. Choose Sheldon if you value free to install and works inside the sites you already use.