# Letty vs ReplaiGPT Letty records 198 monthly visits with -85.4% month-over-month growth and Freemium pricing. ReplaiGPT records 0 monthly visits with — growth and Freemium pricing. | Metric | [Letty](https://openaitools.app/tool/letty) | [ReplaiGPT](https://openaitools.app/tool/replaigpt) | | :--- | :--- | :--- | | Website URL | https://www.useletty.com | https://chromewebstore.google.com/detail/replaigpt/bcdidnkadmpemipmokednakfbmbojnbp | | Categories | AI Email Writer, AI Email Assistant, AI Email Generator, AI Reply | AI Email Generator, AI Email Assistant, AI Reply, AI Response Generator | | Pricing Model | Freemium | Freemium | | Monthly Visits | 198 | 0 | | MoM Growth Rate | -85.4% | — | | Primary Market | India | Global | | Direct Visits | 77 | 0 | | Review Score | 3.8 | 3.8 | | Saved Count | 1 | 0 | | Supported Platforms | Website | Browser Extension | ## Letty Letty positions itself as an inbox productivity layer rather than a full email client. After installing the Chrome extension, it appears alongside your Gmail composition window and analyses the thread in front of you. From there it can propose a contextually relevant reply, draft a longer message from a short prompt, or help you match the tone of earlier messages in the chain. The goal is straightforward: cut the minutes you spend staring at a blank reply box. What separates Letty from a generic writing assistant is the training step. You can feed it your own documents, an FAQ list, or the text of a website, and it will pull answers and phrasing from that material when it writes. The dashboard reports how many characters you have attached, which makes it practical for support teams or founders who answer the same questions repeatedly. Pricing follows a freemium shape with a genuinely usable entry point. The Free plan gives 10 AI credits each month and room for up to 400,000 training characters. Paid tiers step up quickly: Premium adds 150 credits and up to 4 million characters, and Platinum lifts credits to unlimited with a 10 million character training allowance. Credits reset on the first of each calendar month. The platform is Gmail-only today, with Outlook and Zoho described as future additions. **Pricing & Plans:** 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. - **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. - **Gmail-native extension:** Letty lives inside Gmail as a Chrome extension, so drafting and replying happen where you already work with no separate app to manage. **Strengths:** 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 **Limitations:** Officially supports Gmail only; Outlook and other providers are listed as “coming soon”; Free tier is capped at 10 AI credits per month and modest training-character limits; Credit allowances reset on the calendar month rather than the billing anniversary; Advanced controls for style fine-tuning require effort before replies fully match your voice [Profile (Markdown)](https://openaitools.app/tool/letty.md) ## ReplaiGPT ReplaiGPT tackles a common annoyance with AI email tools: most assistants know nothing about who you are, so their drafts sound generic. ReplaiGPT makes you build reusable context profiles — details about yourself, your products, your standard answers — and then uses that stored context plus the currently open email to produce a reply that fits the actual request. The extension works directly inside Gmail. You click the ReplaiGPT icon on an open message, pick one of your saved contexts, choose a language, and hit Generate. The result appears in roughly 10–15 seconds and can be sent after a quick edit. It is aimed at people who answer the same kinds of recurring requests over and over and want a faster first draft. Privacy is handled locally: contexts and emails are stored in your browser rather than on ReplaiGPT's servers, and you supply your own OpenAI API key, so usage is billed by OpenAI directly. The basic version is free, with in-app purchases available. **Pricing & Plans:** Freemium. The basic version is free to use and requires your own OpenAI API key (billed by OpenAI). Optional in-app purchases unlock extra functionality. - **Custom context profiles:** Create and save reusable descriptions of yourself, your products or your business so every AI reply carries the right background. - **One-click Gmail replies:** Open a message, click the extension icon, select a context and generate a draft reply without leaving your inbox. - **Bring your own OpenAI key:** Connect your own OpenAI API key so generation costs go to your own account and you keep control of the model. - **Local-first privacy:** Emails and contexts stay in your browser instead of being stored on the developer's servers. - **Multilingual output:** Choose the language from the context dropdown and generate replies in any popular language. **Strengths:** Replies reflect your own context instead of generic AI phrasing; No server-side storage of emails — contexts stay in your browser; Works in any language and with your own OpenAI API key; Free basic tier with no upfront cost **Limitations:** Requires a separate OpenAI API key and account; Generation takes around 10–15 seconds per reply; Limited user base, so fewer community tips or reviews [Profile (Markdown)](https://openaitools.app/tool/replaigpt.md) ## Frequently Asked Questions ### How do Letty and ReplaiGPT compare in monthly traffic? Letty has 198 monthly visits, while ReplaiGPT has 0. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? Letty has a month-over-month growth rate of -85.4%; ReplaiGPT 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. ReplaiGPT: Freemium. Freemium. The basic version is free to use and requires your own OpenAI API key (billed by OpenAI). Optional in-app purchases unlock extra functionality. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [Spark Mail](https://openaitools.app/tool/spark-mail) | 435,229 | -13.5% | Freemium, Free Trial | Smart, focused email with AI help — for individuals and teams | [.md](https://openaitools.app/tool/spark-mail.md) | | 2 | [WriteMail.ai](https://openaitools.app/tool/writemail-ai) | 79,919 | -29.9% | Freemium | Turn a few key points into polished, on-tone emails | [.md](https://openaitools.app/tool/writemail-ai.md) | | 3 | [Smart Assistant by Mailbutler](https://openaitools.app/tool/smart-assistant) | 47,200 | -8.7% | Freemium, Free Trial, Paid | An AI email assistant that drafts, summarizes, and perfects your messages in place | [.md](https://openaitools.app/tool/smart-assistant.md) | | 4 | [AImReply – Free AI Email Writer](https://openaitools.app/tool/ai-email-assistant-aimreply) | 17,618 | +6.9% | Free | Write polished, on-tone emails in seconds — free, right in your browser | [.md](https://openaitools.app/tool/ai-email-assistant-aimreply.md) | | 5 | [Ellie](https://openaitools.app/tool/tryellie-com) | 9,297 | -0.3% | Free Trial, Paid | Your inbox on autopilot — replies drafted overnight in your own voice. | [.md](https://openaitools.app/tool/tryellie-com.md) | | 6 | [ForthWrite](https://openaitools.app/tool/forthwrite) | 5,722 | +4.6% | Freemium, Free Trial, Contact for Pricing | AI email drafting that writes in your own voice, inside Gmail and Outlook | [.md](https://openaitools.app/tool/forthwrite.md) | | 7 | [Auto Gmail: ChatGPT for email](https://openaitools.app/tool/auto-gmail-chatgpt-for-email) | 4,887 | +14.9% | Paid | An AI drafting layer that writes most of your Gmail replies before you open them. | [.md](https://openaitools.app/tool/auto-gmail-chatgpt-for-email.md) | | 8 | [Ready to Send](https://openaitools.app/tool/ready-to-send) | 1,663 | -46.2% | Freemium, Free Trial | AI-generated Gmail replies, written in your voice and waiting for your review | [.md](https://openaitools.app/tool/ready-to-send.md) | | 9 | [AI Email Writer for Gmail](https://openaitools.app/tool/ai-email-writer-for-gmail) | 967 | -86.9% | Freemium, Paid | Draft and reply to email 10x faster inside Gmail and Outlook | [.md](https://openaitools.app/tool/ai-email-writer-for-gmail.md) | | 10 | [Mailyr](https://openaitools.app/tool/mailyr) | 852 | -68.1% | Freemium | AI email writing inside Gmail, without leaving your inbox. | [.md](https://openaitools.app/tool/mailyr.md) | --- Source: https://openaitools.app/compare/letty-vs-replaigpt More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)