Last updated: 2026-07-01
Monica is a browser-sidebar AI assistant from Stack Network Limited that bundles GPT, Claude, and Gemini into one persistent panel, available on Chrome, Edge, Windows, macOS, iOS, and Android. It reads the open webpage to summarize, translate, and draft replies without copying content elsewhere, and opens instantly with a Ctrl+M hotkey.
About Monica
Monica is an all-in-one AI assistant built by Stack Network Limited, founded in 2015. It ships as a browser extension for Chrome and Edge, a desktop app for Windows and macOS, and a mobile app for iOS and Android, embedding a persistent sidebar into any webpage so users can reach GPT, Claude, Gemini, and other models without switching tabs or apps. The core differentiator is contextual awareness: Monica reads the open webpage, summarizes YouTube videos, analyzes PDFs, and drafts Gmail replies directly in the browser, without requiring the user to copy content elsewhere. The sidebar opens with a Ctrl+M hotkey and stays accessible on every site. It is particularly strong for multilingual users, with built-in translation and rephrasing available from a right-click context menu in dozens of languages. A separate developer API platform at platform.monica.im lets teams integrate Monica's underlying models into their own products. The company took a seed round from Tencent in 2025 and operates from multiple locations.
Pricing
Free plan with daily credit limits. Pro costs $9.90 a month, or $8.30 a month billed annually, with 5,000 daily basic model accesses and 200 advanced model accesses per month. Pro+ costs $19.90 a month with a higher credit allocation. Unlimited costs $16.60 a month billed annually, though the label is capped by undisclosed daily credit limits.
Key Features
- Multi-Model AI Sidebar: Provides access to GPT, Claude, Gemini, and Grok in a single browser sidebar, activated with Ctrl+M on any webpage without switching tabs.
- Contextual Web Summarization: Reads the current webpage or YouTube video and produces a structured summary in seconds, reducing reading time by up to 90% according to Monica's own benchmarks.
- 80+ Writing Templates: Pre-built templates for marketing copy, blog posts, Gmail replies, and social content reduce drafting time for repeat writing tasks.
- In-Browser Translation and Explanation: Highlights any text on any webpage to trigger Monica's context menu for instant translation, rephrasing, or explanation in dozens of languages.
- PDF and Document Analysis: Uploads and analyzes PDF documents directly in the sidebar, allowing Q&A over document content without a separate tool.
- Cross-Platform Sync: Conversations and history sync across Chrome extension, macOS/Windows desktop app, and iOS/Android mobile app under one account.
Pros
- Single subscription replaces separate ChatGPT Plus, Claude Pro, and Perplexity plans, saving users up to $60/month on multi-model access.
- Works across Chrome, Edge, Windows, macOS, iOS, and Android with full sync, unlike browser-only alternatives like Merlin.
- Contextual webpage reading means users never need to copy-paste content into a separate chat window, which speeds up everyday research and writing tasks.
Cons
- Users report 'Unlimited' plan credits deplete after heavy use within a day, with no clear credit counter before hitting limits.
- Cancellation does not always stop billing immediately: multiple Trustpilot reviews cite charges appearing after cancellation, paired with slow support responses.
- YouTube video summarization fails intermittently, with no clear indication to the user when external content access is blocked.
Frequently Asked Questions
How much do you pay for Monica?
The free tier runs on daily credit limits instead of a hard message cap. Paid tiers: Pro at $9.90 month-to-month (drops to $8.30 if you pay annually) with 5,000 basic-model uses per day and 200 advanced-model uses per month, Pro+ at $19.90 month-to-month for a bigger credit pool, and Unlimited at $16.60 per month on an annual plan. Several users report Unlimited's credits still run out before the billing cycle ends.
Can you use Monica without paying?
Yes, on a free plan that runs on daily credits rather than a fixed message count. Free users get chat, basic web summarization, and light writing help. Advanced models such as GPT-4o and Claude, plus image and video generation, sit behind Pro and above.
What are Monica's closest competitors?
Monica's closest browser-sidebar competitors are MaxAI.me and Merlin, which offer similar multi-model access but without a native mobile app. On HokAI, ChatGPT and Perplexity AI cover the single-model chat and cited-search use cases, and Grammarly is a narrower pick if grammar and style checking is the only job you need done.
Is Monica better than ChatGPT?
ChatGPT gives you one flagship OpenAI model with strong coding and image generation, built by the same company that trains it. Monica instead layers GPT, Claude, and Gemini behind a single browser sidebar, so you are not locked into one vendor's model choices. Monica also reads the webpage you are on and ships a large library of writing templates that ChatGPT's browser extension does not match feature-for-feature.
How long does it take to get going with Monica?
Under five minutes, most of it spent installing the extension. Add it from the Chrome Web Store or Edge Add-ons, then sign in with an email or Google account to land on the free plan. Press Ctrl+M on any webpage to open the sidebar and start chatting, summarizing, or translating; higher daily limits are a settings-panel upgrade away.
Top Alternatives
- ChatGPT: ChatGPT is enough when one flagship OpenAI model covers the work; Monica puts GPT, Claude, and Gemini in a single browser sidebar.
- Perplexity AI: Perplexity is built around cited, source-backed web search, while Monica adds writing, translation, and PDF analysis alongside chat.
- Grammarly: Grammarly is the dedicated grammar and style checker inside your documents; Monica spreads wider into chat and summarization.
HokAI guides covering Monica
- Six Questions, Three Tools: Inside a Smart Match Run: We ran HokAI Smart Match on 19 August 2026: six questions, three ranked tools, and every pick traced back to fields carried across all 443 tool listings.