Letty
Verified Oct 15, 2026 ActiveGmail-only Chrome extension that drafts replies in your writing style and can be trained on your documents.
Listed on EffectHub ·
Pricing
- Pricing model
- Freemium
- Paid options from
- $9/mo
- Billing
- Monthly
Free plan gives 10 AI credits a month; Premium is $9/month for 150 credits; Platinum is $19/month for unlimited credits, all listed on the pricing section of the site.
Use tool ↗About Letty
Letty is a Chrome extension that adds AI-generated reply suggestions inside Gmail. It reads the thread, offers a handful of contextual reply options, and can be pointed at documents or websites so its suggestions pick up specific terminology or facts. A free plan gives 10 AI credits a month; paid plans raise that to 150 credits for $9 a month or unlimited credits for $19 a month. Outlook and Zoho support is listed as planned but not yet shipped, so today it only works inside Gmail in Chrome.
- Platforms
- Chrome extension
- API
- Not confirmed
- Last verified
- Oct 15, 2026
Verified sources
- Homepage describing Gmail Smart Replies, document training, and the three pricing tiersuseletty.com ↗
- Third-party listing corroborating Letty as an AI email assistant for Gmailtoolify.ai ↗
Is Letty legit?
We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.
- Domain registered
- Sep 15, 2023 (3 years ago)Registry record (RDAP), registrar NameCheap, Inc., looked up Sep 6, 2026
- TLS certificate
- Issued by Google Trust Services, valid until Nov 23, 2026Seen in our own connection to the site on Oct 15, 2026
- Last checked
- Oct 15, 2026The site answered
Pros & cons of Letty
Letty drafts Gmail replies that match your tone and can be grounded in documents or sites you feed it, which makes it useful if most of your email already lives in Gmail. It doesn't help outside Gmail yet, and the free tier's 10 credits a month will run out fast for anyone emailing daily.
Pros
- Generates contextual reply suggestions instead of generic templates
- Can be trained on specific documents or websites for grounded answers
- Three clear pricing tiers from free up to unlimited credits
Cons
- Only works inside Gmail in Chrome; Outlook and Zoho are listed as planned but not shipped
- Free tier's 10 monthly credits cover only light use
Best for
- Gmail-heavy users who want drafted replies rather than typing every response
- People who repeatedly reference the same documents or product pages in email
Not for
- Outlook, Zoho, or non-Gmail users, since only Gmail is supported today
- Heavy email users who won't tolerate the free tier's 10-credit monthly cap
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