Protein Calculator is a strong option, but it is not the right fit for everyone. Below are 10 alternatives compared on rating, install base, pricing and the use case each one actually wins on.
Use Protein Calculator to determine how much protein per day you need. With one click, quickly calculate your daily protein intake
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| Protein Calculator (original) | — | — | Free | Use Protein Calculator to determine how much protein per day you need. With one click, quickly calculate your daily protein intake |
| Chat AI Ctrl+Enter Sender | — | — | Free | Use 'Ctrl+Enter' for sending messages in AI chat services like ChatGPT. Prevents accidental sends and allows line breaks with Enter. |
| Savvy by Wethrift | — | — | Free | Automatically find the best coupon codes at checkout, saving you money at your favorite stores. Never search for a coupon again! |
| WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease | 4.5 | 6M+ | Free | Users who need a free all-in-one PDF editor, converter and signer in the browser. |
| AnyDoc Translator - Translate Web and PDF | — | — | Free | The ultimate AI translator for web, files, ebooks, academic papers, images, and text |
| Monica AI | 4.9 | 3M+ | Freemium | People who want templates and translation alongside a general AI chat panel. |
| Keplr | — | — | Free | Keplr is a browser extension wallet for the Inter blockchain ecosystem. |
| Merlin AI | 4.8 | 900K+ | Freemium | Generalists who want a single AI sidebar instead of five separate AI extensions. |
| RetailMeNot: Codes, Cash Back and Coupons | — | — | Free | Automatically finds the best promo codes and cash back as you shop online. |
| Sumopaint - Online Image Editor | — | — | Free | Sumopaint is a full featured painting and image editing application. |
| Perplexity | 3.8 | 400K+ | Freemium | Researchers and analysts who need answers they can trace back to a source. |
Use 'Ctrl+Enter' for sending messages in AI chat services like ChatGPT. Prevents accidental sends and allows line breaks with Enter.
Why it replaces Protein Calculator: Covers similar ground in the AI category: Use 'Ctrl+Enter' for sending messages in AI chat services like ChatGPT. Prevents accidental sends and allows line breaks with Enter.
Automatically find the best coupon codes at checkout, saving you money at your favorite stores. Never search for a coupon again!
Why it replaces Protein Calculator: Covers similar ground in the AI category: Automatically find the best coupon codes at checkout, saving you money at your favorite stores. Never search for a coupon again!
Easy-to-use PDF tools to view, edit, convert, fill, e-sign PDF files, and more in your browser.
Why it replaces Protein Calculator: Another popular AI extension: Easy-to-use PDF tools to view, edit, convert, fill, e-sign PDF files, and more in your browser.
The ultimate AI translator for web, files, ebooks, academic papers, images, and text
Why it replaces Protein Calculator: Another popular AI extension: The ultimate AI translator for web, files, ebooks, academic papers, images, and text
AI copilot for chat, translation and writing on any site.
Why it replaces Protein Calculator: Another popular AI extension: AI copilot for chat, translation and writing on any site.
Keplr is a browser extension wallet for the Inter blockchain ecosystem.
Why it replaces Protein Calculator: Another popular AI extension: Keplr is a browser extension wallet for the Inter blockchain ecosystem.
One AI assistant for summarising, writing and answering on any page.
Why it replaces Protein Calculator: Another popular AI extension: One AI assistant for summarising, writing and answering on any page.
Automatically finds the best promo codes and cash back as you shop online.
Why it replaces Protein Calculator: Another popular AI extension: Automatically finds the best promo codes and cash back as you shop online.
Sumopaint is a full featured painting and image editing application.
Why it replaces Protein Calculator: Another popular AI extension: Sumopaint is a full featured painting and image editing application.
Answer engine with cited sources built into the browser.
Why it replaces Protein Calculator: Another popular AI extension: Answer engine with cited sources built into the browser.
Direct comparisons with the extensions people weigh against it.
Chat AI Ctrl+Enter Sender is the closest match. Covers similar ground in the AI category: Use 'Ctrl+Enter' for sending messages in AI chat services like ChatGPT. Prevents accidental sends and allows line breaks with Enter.
Yes — Chat AI Ctrl+Enter Sender, Savvy by Wethrift, WPS PDF - Read, Edit, Fill, Convert, and AI Chat PDF with Ease are free.
