Compare Grammarly and Sider: Which Extension is the Best?

	Grammarly	Sider
	Grammarly is a comprehensive writing assistant offering real-time grammar, spelling, punctuation, and style suggestions. With over 44 million users, it’s a trusted tool for enhancing your writing. Writing Education	Sider is an AI browser extension that boosts productivity in reading, writing, and more. Trusted by 6M+ users, it offers features to optimize online activities. AI ChatGPT
Key Features	Grammar Checker: Detects and corrects grammatical errors. Spelling Checker: Identifies and fixes spelling mistakes. Punctuation Checker: Ensures proper punctuation usage. Tone Detector: Analyzes the tone of your writing. Auto-Citations: Generates citations for online sources. Generative AI: Produces instant drafts, ideas, and replies.	AI Writing Assistant: Generates articles and enhances writing styles quickly. Webpage Reading Assistant: Summarizes content and provides accurate information. AI-Powered PDF Analysis: Summarizes and translates PDF documents. Image Creating & Editing Suite: Generates and edits images with AI. Group AI Chat: Supports multiple AI models for diverse interactions. Smart Web Access: Enhances productivity with quick access to information.
Our Rating	8.8	8.7
Total users	54,562,704	8,095,228
Total ratings	47,134	111,600
Average rating	4.2 ⭐	4.9 ⭐
Entry Level Price	Free	Free
Chrome	4.5 42.8K+ ratings 39.0M+Users	4.9 104.0K+ ratings 5.0M+Users
Edge	3.9 1.1K+ ratings 14.9M+Users	4.8 7.6K+ ratings 3.1M+Users
Firefox	4.1 3.2K+ ratings 657.8K+Users	-
Safari	-	-
Features	9.5 Grammarly goes beyond basic grammar and spelling checks. It offers advanced features like tone detection, vocabulary enhancement, and generative AI capabilities. Compared to competitors, Grammarly provides a more comprehensive set of tools, making it a valuable asset for any writer.	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.
Performance	9.0 Grammarly performs well across different platforms, providing real-time suggestions without significant lag. The tool is reliable and helps improve writing efficiency.	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.
Design	8.5 The design is clean and intuitive, making it easy to navigate. The color-coded underlines for suggestions are helpful, and the interface is user-friendly. However, some users might find the pop-ups slightly intrusive.	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	8.5 While Grammarly offers a free version, the Premium plan is relatively expensive. However, the advanced features and comprehensive feedback justify the cost for those who need a robust writing assistant. Grammarly is the priciest option for a reason—because, in our view, it's the best writing tool available in its category. If you're looking for the best writing assistant, go for the Premium plan, you won't regret it!	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	9.0 Grammarly is straightforward to use, with a minimal learning curve. The browser extension integrates seamlessly with various platforms like Google Docs and Gmail, allowing you to get started right away.	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.
Security & Privacy	8.0 Grammarly takes privacy seriously, with stringent security measures in place. While an account is required, the company assures users that their data is not sold or made public. However, some users may still have concerns about data processing.	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	In our eyes, Grammarly is the best choice for anyone who wants to write professional articles or other things in English. Even though Grammarly has an expensice price tag, you can't get anything better on the market. We have been using Grammarly for a long time now. And even in the world of ChatGPT and other AI tools, Grammarly is just super handy and helpful. For us, the Premium plan is worth every penny. This only applies as long as you are in the English-speaking world. If you need other languages, we would recommend LanguageTool instead.	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.
	Install Grammarly	Install Sider
Our Recommendation	In our comparison between Grammarly and Sider, Grammarly came out on top, scoring 8.8. Grammarly is the most widely used, with over 55 million users and 47k+ reviews—and it also delivered the strongest performance in our tests. User reviews for Grammarly 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. Can't decide on features? It's a close call: Grammarly and Sider. In the Features category, Grammarly has scored an outstanding 9.5. It offers an exceptional range of features that go above and beyond expectations. Need top performance? Sider stands out with a rating of 9.2. On the other hand, Grammarly lags behind in this area with a rating of 9. Both look and feel great: Grammarly and Sider. In the Design category, Grammarly has scored a very good 8.5. The design is appealing and generally effective, with a few minor areas for improvement. Want to get the most for your money? Grammarly stands out with a rating of 8.5. On the other hand, Sider lags behind in this area with a rating of 7.8. Ease of use? It's a tie: Grammarly and Sider. In the Ease of Use category, Grammarly has scored a fantastic 9. It is very easy to use, with an intuitive interface that facilitates a smooth user experience. For privacy, it's a tie: Grammarly and Sider. In the Security & Privacy category, Grammarly has scored a solid 8. It offers adequate security and privacy features, though there is room for improvement. If you want a quick recommendation, Grammarly is our top pick. But as always, the best choice depends on what matters most to you.