How do their growth rates compare?

Letty has a month-over-month growth rate of -85.4%; MailGPT has —.

How does pricing compare?

Letty: Freemium. Freemium. A Free plan offers 10 AI credits per month and up to 400,000 training characters. Premium is $9/month for 150 credits and 4M characters, and Platinum is $19/month for unlimited credits and 10M characters. Annual billing discounts are available, and credits reset each calendar month. MailGPT: Free. Free. The extension is free to add and requires a ChatGPT account for generation.

What are alternatives to Letty and MailGPT?

Other tools in related categories include Spark Mail, WriteMail.ai, Smart Assistant by Mailbutler, AImReply – Free AI Email Writer, Ellie.

Letty vs MailGPT — Traffic (198 vs 0), Pricing & Verdict

Open AI Tools

Letty vs MailGPT — Traffic (198 vs 0), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Letty	MailGPT
Official Domain	useletty.com	chrome.google.com
Pricing Model	Freemium	Free
Monthly Visits	198 (198)	0 (0)
MoM Traffic Delta	-1.16K (-85.4%)	0 (—)
Primary Market & Share	🇮🇳 India (100%)	🌐 Global (—)
Direct Visits / mo	77	0
User Rating	3.8	3.2
Supported Platforms	Website	Browser Extension

Letty

AI email writing and smart replies, right inside Gmail

Context-aware smart replies

Letty reads the incoming thread and proposes replies that fit the conversation, helping you clear your inbox without writing every response from scratch.

One-click email drafting

Turn a rough idea into a finished message. Letty drafts professional emails for pitches, follow-ups, introductions, and everyday correspondence.

Train on your own knowledge

Attach documents, FAQs, or a website URL and Letty draws on that material to answer questions accurately in your replies.

Style matching

Letty can mirror your tone and phrasing so outgoing mail sounds like you rather than a generic template.

Strengths & Pros

+Works inside Gmail, so there is no new inbox to learn
+Training on your own documents or website produces more accurate, on-brand replies
+Free tier lets you test the core workflow at no cost
+Clear, tiered pricing with an unlimited-credit top plan
+States that email content is not stored after a reply is generated