ProWritingAid vs Keeper
A comprehensive head-to-head comparison of two leading browser extensions solutions in 2026. Compare features, pricing, ratings, and more to find the right fit.
Quick Verdict
Choose ProWritingAid if you need Grammar checking and prefer a free starting option. Choose Keeper if you prioritize Password management and want plans starting at $2.91/month. Keeper has a higher user rating (4.6 vs 4.5).
ProWritingAid vs Keeper: At a Glance
| Criteria | ProWritingAid | Keeper |
|---|---|---|
| User Rating | 4.5 | 4.6 |
| Pricing | Free | $2.91/month |
| Pricing Model | freemium | paid |
| Free Plan | ||
| Platforms | Chrome, Firefox, Edge, Safari | Chrome, Firefox, Edge, Safari, Opera |
| Category | Browser Extensions | Browser Extensions |
| Founded | 2013 | 2011 |
Feature Comparison: ProWritingAid vs Keeper
| Feature | ProWritingAid | Keeper |
|---|---|---|
| Grammar checking | ||
| Style analysis | ||
| Readability reports | ||
| Plagiarism checker | ||
| Chrome support | ||
| Firefox support | ||
| Edge support | ||
| Safari support | ||
| Password management | ||
| Zero-knowledge encryption | ||
| Secure file storage | ||
| BreachWatch | ||
| Opera support |
ProWritingAid vs Keeper: Pricing Breakdown
ProWritingAid Pricing
Model: freemium
- 500 word limit
- Grammar checking
- Basic reports
Keeper Pricing
Model: paid
- Unlimited passwords
- Secure file storage
- Dark web monitoring
Pros and Cons
ProWritingAid
Pros
- Highly rated by users (4.5/5)
- Free plan available to get started
- Available on 4 platforms (Chrome, Firefox, Edge, Safari)
- Rich feature set with 8+ capabilities
- Strong Grammar checking functionality
- Strong Style analysis functionality
Cons
- May require time to learn advanced features
Keeper
Pros
- Highly rated by users (4.6/5)
- Available on 5 platforms (Chrome, Firefox, Edge, Safari, Opera)
- Rich feature set with 9+ capabilities
- Strong Password management functionality
- Strong Zero-knowledge encryption functionality
Cons
- No free plan available
- May require time to learn advanced features
Who Should Use ProWritingAid vs Keeper?
Choose ProWritingAid if you:
- Need Grammar checking
- Want to start for free
- Work primarily on Chrome and Firefox
- Value Style analysis
Choose Keeper if you:
- Need Password management
- Have a budget of $2.91/month+
- Work primarily on Chrome and Firefox
- Value Zero-knowledge encryption
Frequently Asked Questions: ProWritingAid vs Keeper
Is ProWritingAid better than Keeper?
It depends on your needs. ProWritingAid has a 4.5/5 user rating while Keeper has 4.6/5. ProWritingAid excels in Grammar checking and Style analysis, while Keeper stands out with Password management and Zero-knowledge encryption. Consider your budget (Free vs $2.91/month), platform needs, and specific feature requirements.
Which is cheaper, ProWritingAid or Keeper?
ProWritingAid offers a free plan and starts at Free. Keeper starts at $2.91/month. ProWritingAid has a clear pricing advantage with its free tier.
Can I use ProWritingAid and Keeper together?
While both are browser extensions tools, some teams use complementary software together. Check each product's API and integration capabilities for compatibility. However, most users find that one solution covers their core browser extensions needs.
What are the main differences between ProWritingAid and Keeper?
The key differences include: pricing model (freemium vs paid), platform support (Chrome, Firefox, Edge, Safari vs Chrome, Firefox, Edge, Safari, Opera), and feature focus. ProWritingAid emphasizes Grammar checking, Style analysis, Readability reports while Keeper focuses on Password management, Zero-knowledge encryption, Secure file storage. User ratings differ slightly: 4.5 vs 4.6 out of 5.
Ready to choose?
Explore detailed reviews, user ratings, and pricing for both ProWritingAid and Keeper.