Compare Monica and Sider: Which Extension is the Best?
| Key Features A summary of the most important features offered by each extension. | • Multi-Model AI Chat: Access GPT-4o, Claude 3.5, Gemini 2.5, DeepSeek V3, and more in one interface • Image & Video Generation: Create visuals using DALL-E 3, Flux Pro, and other advanced models • Document Analysis: Upload PDFs and chat with them using ChatPDF functionality • Webpage Summarization: Get instant summaries of any webpage or YouTube video • Smart Writing Tools: Compose emails, rewrite content, and bypass AI detection • Translation Suite: Translate text, PDFs, and compare translations across multiple AI models • Voice Support: Use microphone input for hands-free interaction • Cross-Platform Sync: Access your AI assistant from browser, desktop, and mobile |
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| Our Rating Tooltivity's expert review score for each extension, based on hands-on testing and research. | 8.7 Winner in this category | 8.7 Winner in this category |
| Total users Total active users across all major browsers: Chrome, Edge, Firefox, and Safari. | 3,828,289 | 9,168,797 Winner in this category |
| Total ratings Total number of user ratings received across all supported browsers. | 31,110 | 117,582 Winner in this category |
| Average rating Average user rating across all browsers, calculated from available store ratings. | 4.7 ⭐ | 4.9 ⭐ Winner in this category |
| Entry Level Price The minimum price required to start using the extension. "Free" means a free tier is available. | Free | Free |
| Chrome User rating and stats for the extension on Chrome browser. |  4.9 4.89 Average Chrome Web Store rating from the last 100 reviews 3.0M+Users | 4.9 4.89 Average Chrome Web Store rating from the last 100 reviews 6.0M+Users Winner in this category |
| Edge User rating and stats for the extension on Edge browser. |  4.6 4.42 Average Microsoft Edge Store rating from the last 100 reviews 828.3K+Users | 4.8 4.31 Average Microsoft Edge Store rating from the last 100 reviews 3.2M+Users Winner in this category |
| Firefox User rating and stats for the extension on Firefox browser. | - | - |
| Safari User rating and stats for the extension on Safari browser. | - | - |
| Features Tooltivity's expert score for the 'Features' aspect of each extension. | 9.2 Monica’s feature set is impressively comprehensive, supporting nearly every AI use case you might need. With access to multiple models—including GPT-4o, Claude 3.5, Gemini 2.5, and DeepSeek—you’re not limited to a single AI’s strengths or weaknesses. Notable features include document analysis, which lets you upload PDFs and have interactive conversations about their content, and advanced image and video generation powered by models like DALL-E 3 and Flux Pro. The writing tools go beyond basic text generation, offering email composition, content rewriting, and even AI detection bypass. The translation suite is robust, allowing you to compare translations across different models for accuracy, and the voice support feature makes hands-free use easy. The prompt library, accessible via quick ‘/’ commands, is a thoughtful addition that speeds up common tasks. While some advanced features are reserved for paid plans, the free tier still provides substantial functionality.  | 9.5 Sider offers a comprehensive range of functions and is designed to provide a solution for every possible use of AI. From AI writing assistance to PDF analysis, for example, it covers all areas for every blogger. Creatives also get their money's worth here, whether creating images from text or editing photos, Sider offers these functions in just one tool and integrates the functions of other providers into your one tool.  The number of integrated AI models, such as GPT-4o, Claude, or Gemini, also stands out. This ensures that users have access to the latest technology.  In summary, Sider offers almost all of the current possibilities of AI in one tool. Winner in this category |
| Performance Tooltivity's expert score for the 'Performance' aspect of each extension. | 8.6 Monica performs reliably across different platforms and use cases. The browser extension loads quickly and responds promptly, and switching between AI models is seamless with minimal delay. Image generation features work well, though processing times can vary depending on the complexity of the request. Document analysis handles various file formats effectively, though larger files may take longer to process. Voice input is consistent and accurate across browsers, and the mobile app maintains good performance, though it can be slightly slower for complex tasks. Cross-platform sync works reliably, ensuring your conversations and settings are available everywhere. The extension does not significantly impact browser performance or cause slowdowns. However, some advanced features can experience occasional delays during peak usage times. Overall, Monica’s performance is solid and consistent, making it suitable for both casual and professional use. | 9.2 Sider generally performs well in the test with fast response times and reliable functions. The integration of multiple AI models ensures that users receive accurate and relevant information. However, there can be occasional delays, especially when using advanced features or at peak times. Continuous updates and optimizations could further improve performance. Winner in this category |
| Design Tooltivity's expert score for the 'Design' aspect of each extension. | 8.7 Monica’s interface strikes a strong balance between functionality and usability. The design is clean and modern, with a sidebar and layout that keep things organized even with a large number of features. The color scheme is pleasant and easy on the eyes, and navigation between different AI models and tools is intuitive. The image generation and chat interfaces are particularly well-designed, making it easy to create, refine, and interact with content. Settings and customization options are easy to find, and the mobile app maintains consistency with the browser extension, which is impressive for cross-platform design. However, the sheer number of features can feel overwhelming at first, and while the learning curve is manageable, new users may need some time to discover all available options. More customization options would be helpful for power users who want to tailor the interface to their needs. Winner in this category | 8.5 The design of Sider is very user-friendly, and the interface is quite clear, so it's easy to find anything. The sidebar is great because you can access features without leaving the page. However, it might feel cluttered for some people as there are so many options. A sleeker design could improve the user experience. |
| Value for Money Tooltivity's expert score for the 'Value for Money' aspect of each extension. | 8.3 Monica delivers excellent value, especially since it provides access to multiple premium AI models in one package. The free tier is generous, offering 40 daily uses of basic models—more than most competitors—making it accessible for casual users. The Pro plan at $99/year offers substantial value for power users, with 5,000 monthly basic model accesses and 200 advanced model accesses. Compared to subscribing to individual AI services, Monica’s pricing is competitive, and the unlimited plan at $149/year is a great deal for heavy users. Cross-platform availability adds further value, as you’re not paying for separate mobile and desktop apps. The comprehensive feature set means you’re getting multiple tools in one package. However, the jump from free to paid is significant, which might deter some users, and a middle pricing tier would be helpful for moderate users. Overall, the value proposition is strong, especially for those who would otherwise need multiple AI subscriptions. Winner in this category | 7.8 While Sider offers a free version with limited requirements, the premium plans can be expensive for casual users. While the feature set justifies the cost for power users, those who only need basic features may find it expensive. The availability of different pricing tiers offers flexibility, but an intermediate solution with a cheaper option could appeal to a wider audience. |
| Ease of Use Tooltivity's expert score for the 'Ease of Use' aspect of each extension. | 8.3 Monica excels in ease of use, with a quick setup process that gets you started in minutes. The keyboard shortcut (Cmd/Ctrl + M) makes it convenient to access from any webpage, and the interface is intuitive enough for most users to begin using it effectively without tutorials. Switching between AI models is straightforward, and the voice input feature works reliably, adding significant convenience for hands-free use. The prompt library with quick access commands speeds up common tasks, and uploading documents is simple, supporting various file formats. The mobile app matches the browser extension in usability, ensuring a consistent experience across devices. While the extensive feature set can initially feel overwhelming, the learning curve is gentle, and features are discoverable through natural exploration. Some advanced features may require more time to master, and the help documentation could be more comprehensive for complex tasks. | 9.0 In our tests, Sider was easy to use without having to learn how to use it. The tooltips and instructions help you get started right away. It works well in our tests with popular browsers such as Chrome and Edge, which are quick to install and use. However, if you want to delve into the advanced functions, it can take a while to get to grips with everything. Basic users might be a little overwhelmed here. Winner in this category |
| Security & Privacy Tooltivity's expert score for the 'Security & Privacy' aspect of each extension. | 9.3 Monica demonstrates a strong commitment to user privacy, which is refreshing in the AI space. The privacy policy is clear: user data is not sold or monetized, and only necessary information is collected for service functionality. The company is transparent about its data practices, explicitly stating that it does not track browsing habits or chat content beyond what’s needed for the service. The privacy policy is comprehensive, covering GDPR and CCPA compliance, and data is encrypted both in transit and at rest. Reputable third-party services are used for payment processing, ensuring financial data security. User content is stored only as needed for the history feature, and users have control over their data. The privacy commitment extends to the business model, which does not rely on advertising or data selling. However, as with any AI service, users should be aware that their inputs are processed by third-party AI models, which may have their own privacy implications. Winner in this category | 8.0 Sider stores the data on Amazon's US servers. The data protection guidelines are transparent and users have control over their data. However, usage data is collected for analysis purposes, which not every user will find acceptable. The assurance that data is never passed on and no spam messages are sent is a positive aspect. |
| Conclusion A summary of our findings and final thoughts for each extension. | Monica represents a significant step forward in AI assistant technology by consolidating multiple powerful models into one accessible platform. Our testing revealed that it delivers on its promise of being a comprehensive AI tool that can handle virtually any task you throw at it. The extension's strength lies in its versatility and ease of use. Whether you need help with writing, research, image creation, or document analysis, Monica provides a consistent and reliable experience. The cross-platform availability means you can access your AI assistant wherever you work. However, Monica isn't without its limitations. The free tier, while generous, has clear restrictions that might push users toward paid plans. Additionally, the interface can feel overwhelming at first due to the sheer number of features available. Overall, Monica is an excellent choice for users who want a comprehensive AI assistant without the hassle of managing multiple subscriptions or accounts. It's particularly valuable for professionals who need reliable AI assistance across different tasks and platforms. | Sider is an AI tool that can significantly increase user productivity across multiple platforms. The high number of features, from writing assistance to image editing, makes it a versatile choice for truly anyone. Although it excels in many areas, there is still room for improvement. In particular, the sometimes high prices will put normal users off. Overall, Sider is a valuable tool for anyone who wants to combine almost all the possibilities of AI in one tool and is willing to pay for it. |
| Our Recommendation | In our comparison between Monica and Sider, all extensions performed equally well, each scoring 8.7. Sider is the most widely used, with over 9 million users and 118k+ reviews—and it also delivered the strongest performance in our tests. User reviews for Monica reflect our findings, while we rate Sider lower than users do. Notably, Sider has the highest user rating in the Chrome Web Store at 4.86, which is even higher than our rating of 8.7. In the end, the differences between these extensions are minimal, so your choice may come down to personal preference or specific features.
There's no single winner, so check the categories above to find your best fit. | |
