Compare Grammarly and Momentum: Which Extension is the Best?

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.
Momentum transforms your new tab into a personalized dashboard with to-dos, weather, and inspiration. We tested it extensively and here's our honest review.
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.
  • Personalized Dashboard: Customizable new tab page with to-dos, weather, and daily quotes.
  • Focus Mode: Helps you concentrate by displaying your main focus for the day.
  • To-Do List: Integrated task manager to keep track of your tasks.
  • Weather Updates: Real-time weather information.
  • Daily Inspiration: Beautiful images and quotes to keep you motivated.
  • Customization: Options to customize the background, widgets, and more.
Our Rating
8.8
8.7
Total users
54,568,609
2,663,645
Total ratings
47,132
14,714
Average rating
4.2 ⭐
4.3 ⭐
Entry Level PriceFreeFree
Chrome
Chrome Web Store logo
4.5
3.70
42.8K+ ratings
39.0M+Users
Chrome Web Store logo
4.5
4.17
13.7K+ ratings
2.0M+Users
Edge
Microsoft Edge Store logo
3.9
3.69
1.1K+ ratings
14.9M+Users
Microsoft Edge Store logo
4.1
3.98
175 ratings
629.5K+Users
Firefox
Mozilla Firefox Add-ons Store logo
4.1
4.15
3.2K+ ratings
663.7K+Users
Mozilla Firefox Add-ons Store logo
4.4
4.48
806 ratings
34.2K+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.

8.5

Momentum offers a comprehensive set of features that are both useful and easy to use. The focus mode and to-do list are particularly standout features, but some advanced functionalities are locked behind the premium plan.

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.

9.0

Momentum runs smoothly without any noticeable lag or performance issues. It integrates well with various browsers and does not slow down your browsing experience.

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.

9.0

The design is sleek and user-friendly. The customizable backgrounds in the premium plan and widgets make it visually appealing and easy to navigate.

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!

8.7

The free version offers basic functions for creating to do lists and occasionally using the focus mode. The premium plan offers considerable added value with additional customizations and integrations.

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.

9.2

Momentum is straightforward to set up and use. The First Start Tour describes the basic functions to everyone in just a few steps so that you can work in a focused manner after just 2 minutes. The minimal learning curve makes it accessible for users of all skill levels.

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

Momentum takes data protection seriously and offers the option of saving data locally. Nevertheless, some data is collected for functional purposes.

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.

Momentum is a fantastic choice for anyone looking to enhance their productivity with a visually appealing and functional new tab page. If you're okay with the basic features and don't mind the occasional upsell for premium features, Momentum can be a valuable addition to your productivity toolkit. With the premium plan, you can unlock even more customization options and integrations that can make your workflow smoother. Overall, Momentum is an excellent addition to any productivity toolkit.

Our Recommendation

In our comparison between Grammarly and Momentum, 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 reflect our findings.

Notably, Momentum has the highest user rating in the Chrome Web Store at 4.33, which supports its strong performance in our review.

In the end, the differences between these extensions are minimal, so your choice may come down to personal preference or specific features.


  • Looking for the richest feature set? Grammarly stands out with a rating of 9.5. On the other hand, Momentum lags behind in this area with a rating of 8.5.
  • Performance-wise, both deliver: Grammarly and Momentum. In the Performance category, Grammarly has scored a highly impressive 9. It performs very well, meeting high standards with ease.
  • Design lovers, take note: Momentum stands out with a rating of 9. On the other hand, Grammarly lags behind in this area with a rating of 8.5.
  • Want to get the most for your money? Momentum stands out with a rating of 8.7. On the other hand, Grammarly lags behind in this area with a rating of 8.5.
  • If you hate complicated tools, Momentum stands out with a rating of 9.2. On the other hand, Grammarly lags behind in this area with a rating of 9.
  • For privacy, it's a tie: Grammarly and Momentum. 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.