Monica
The AI intelligent assistant produced by Beijing Butterfly Effect Technology has a memory function. It allows free conversations with DeepSeek V3 and R1 on the web version, and provides translation and summarization capabilities via apps and browser plugins.
Updated: 2026-10-26
What is Monica?
Monica is an AI intelligent assistant launched by Beijing Butterfly Effect Technology Co., Ltd., officially positioned as a "universal assistant and a partner who understands you". It focuses on memory capabilities and can provide personalized support and suggestions according to users' habits. Different from pure chat tools, Monica offers a web version, mobile App and browser plug-in version at the same time, covering various scenarios from conversation to web page reading assistance. It aims to be a daily companion resident on the user side rather than a single dialog box.
Who is it for?
- Office workers who need to stay in the browser for real-time webpage translation and summarization while reading.
- Ordinary users who want a daily AI companion with memory and personalized responses.
- Mobile users who are used to chatting on their phones at any time.
- Beginners who want to experience mainstream large model conversations for free without the hassle of complex configuration.
Key features
4Smart Conversation
The web version allows free conversations with DeepSeek V3 and R1 models, providing daily Q&A support and can be used without additional configuration.
Memory Function
Officially described as having "powerful memory capabilities", it can provide personalized suggestions based on historical interactions and make conversations more coherent.
Browser Extension
Performs translation, summarization, and chatting while browsing web pages without interrupting the reading process, making it ideal for asking questions while reading.
Multi-platform Coverage
Available on web version, mobile App and browser plugin, supporting on-the-go conversations and assistance with no interruption when switching devices.
How to use Monica
- Start with the free web version for conversations: The web version clearly states that you can chat with DeepSeek V3 and R1 for free, making it a zero-threshold trial for beginners.
- The plugin version is suitable for reading scenarios: when browsing foreign language or long texts, you can call up translation and summary functions, which are more efficient and avoid leaving the current page.
- Pay attention to privacy and agreements: Read the user agreement and privacy policy before use to understand how memory data is stored and processed.
- official rules may be adjusted, and verify in advance for commercial use or scenarios involving large amounts of personal data.
- Do not entrust sensitive information to the memory: For content related to accounts and privacy, confirm the storage method before long-term use.
- Use the mobile app and web version together: Chat casually on your phone and tackle long tasks on the web version.
- switch between scenarios for greater efficiency.
- Check multi-device synchronization in settings: When switching between the web version, App and plugin, confirm that conversations and memories are synchronized as expected.
- Pay attention to model updates: The models accessed on the web version may be adjusted, so check the currently available version before using it.
- Favorite common conversations: Save your satisfactory responses for future reuse.
Traffic & popularity
Data month Sep 2026
Monica receives about 5.3K visits per month and ranks #4,607,038 worldwide.
Monthly visits
12 monthsTraffic sources
- Direct52.3%
- Search30.5%
- Referrals14.4%
- Mail1.5%
- Social0.7%
- Other0.7%
Top countries
- China86.5%
- Hong Kong, China4.7%
- Taiwan, China4.6%
- Singapore4.2%
Estimated from third-party traffic data.
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