kitio.aiLetterbot vs superReply
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Letterbot starts at See pricing page and superReply starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Notes to email
- Reply generation
- Thread summaries
- Grammar fix
- 9 tones and 13 languages
- One-click reply suggestions
- Tone of voice options
- Gmail and Outlook support
- Works in Slack and LinkedIn
- Replies not stored on servers
| Feature | Letterbot | superReply |
|---|---|---|
| Best for | Gmail add-on that turns rough notes into finished emails | Chrome extension that drafts email replies in Gmail and Outlook |
| Category | Writing | Writing |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | See pricing page |
| Free plan | Yes | Yes |
| Made by | Letterbot | superReply |
| Based in | Germany | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Letterbot starts at See pricing page and superReply starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- 5 requests a day
- Write, reply, subject and summary
Basic
€3.99/mo
- 100 requests a day
- All 6 writing tools
- Grammar fix and sales writer
Professional
€19.99/mo
- 800 requests a day
- Priority AI processing
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
Letterbot
- Works directly inside Gmail
- Very low-cost paid plan
- Only runs when you click a tool
- Free plan allows 5 requests a day
- Prices only listed in euros
- Native integration limited to Gmail
superReply
- Works inside your existing inbox
- Several reply options per email
- Free for up to 90 emails a month
- Paid plan prices not shown on the site
- Chrome only
- Short emails, not long documents
Which one should you choose?
Choose Letterbot if you want:
- Works directly inside Gmail
- Very low-cost paid plan
- Only runs when you click a tool
Watch out: free plan allows 5 requests a day.
Choose superReply if you want:
- Works inside your existing inbox
- Several reply options per email
- Free for up to 90 emails a month
Watch out: paid plan prices not shown on the site.
Letterbot vs superReply FAQ
What is the difference between Letterbot and superReply?
Letterbot: Gmail add-on that turns rough notes into finished emails. superReply: Chrome extension that drafts email replies in Gmail and Outlook. Both are writing tools.
Is Letterbot or superReply cheaper?
Letterbot starts at See pricing page and superReply starts at See pricing page. Check both pricing pages for current plans.
Do Letterbot and superReply have free plans?
Letterbot: Yes. superReply: Yes.
Who makes Letterbot?
Letterbot is made by Letterbot, based in Germany.
Who makes superReply?
superReply is made by superReply.
Which should I choose, Letterbot or superReply?
Choose Letterbot if you value works directly inside gmail and very low-cost paid plan. Choose superReply if you value works inside your existing inbox and several reply options per email.