Compare Merlin AI and Proton VPN: Which App is the Best?
Proton VPN is a premium privacy-focused VPN service with Swiss-based privacy protection, independent audits, and an excellent free tier that offers unlimited bandwidth with no ads. | Merlin AI combines ChatGPT, Grok AI, DeepSeek, Gemini, Claude, and Perplexity AI in one powerful app with 70+ AI tools. Enjoy 102 free daily queries and seamless cross-platform integration. | |
| Key Features A summary of the most important features offered by each app. |
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| Our Rating Prod Apps's expert review score for each app, based on hands-on testing and research. | 8.3 Winner in this category | 8.3 Winner in this category |
| Total users Total active users across all major browsers: Chrome, Edge, Firefox, and Safari. | 0 | 0 |
| Total ratings Total number of user ratings received across all supported browsers. | 0 | 0 |
| Average rating Average user rating across all browsers, calculated from available store ratings. | — ⭐ | — ⭐ |
| Entry Level Price The minimum price required to start using the app. "Free" means a free tier is available. | Free | Free |
| Android User rating and stats for the app on Android browser. |  Downloads | Downloads |
| iOS User rating and stats for the app on iOS browser. |  | |
| Features Prod Apps's expert score for the 'Features' aspect of each app. | 9.0 Proton VPN delivers an exceptional set of features that prioritize privacy and security over flashy functionality. The app's feature set is comprehensive and focused on providing genuine privacy protection, which aligns perfectly with its target audience of privacy-conscious users. Key features we found most valuable include:
Proton VPN excels in providing advanced privacy features that are typically only available in premium VPNs. The free tier offers unlimited bandwidth with no ads, which is exceptional in the VPN market. The premium features are genuinely useful and not just cosmetic add-ons. While the core features are excellent, some limitations affect the overall experience. The free tier has limited server locations, and some users report connection issues. However, these limitations are reasonable for a privacy-focused service. For users who need advanced privacy features, Proton VPN offers the most comprehensive solution available. Alternatives like NordVPN provide more server locations, while Thunder VPN offers a more user-friendly free experience. We rate features at 9.0 out of 10—excellent privacy-focused features with genuine value for privacy-conscious users. Winner in this category | 9.0 Merlin AI has everything you'd want in an AI assistant. It brings together seven different AI models - ChatGPT, Grok AI, DeepSeek, Gemini, Claude, and Perplexity AI - all in one place. This means you don't need separate subscriptions for each one. We really liked the 70+ AI tools it comes with:
The best part is how easy it is to switch between different AI models - just one tap and you're using a different AI. Plus, everything syncs across your devices so you can start a conversation on your phone and continue it on your computer. Winner in this category |
| Performance Prod Apps's expert score for the 'Performance' aspect of each app. | 7.0 Proton VPN's performance presents a mixed picture that reflects the challenges of maintaining a privacy-focused VPN service. While the app can deliver good connections when working properly, some users report performance issues that impact the overall experience. Performance strengths include:
However, some performance issues undermine the user experience:
User reviews reveal mixed experiences, with some users praising the app's performance while others report connection issues. The app's focus on privacy over performance may be impacting server quality and maintenance. For users seeking reliable performance, alternatives like NordVPN offer more consistent performance with better server maintenance, while Thunder VPN provides more user-friendly performance. We rate performance at 7.0 out of 10—good performance when working but some connection issues and speed limitations that impact the overall experience. | 8.0 The app runs smoothly without lag or interruptions when chatting with multiple AI models. The search function works quickly and accurately, so you can easily find your conversations. We tested it on different devices and platforms, and it performed well everywhere. The chat responses are fast, even when switching between different AI models. The cross-device sync works reliably, so you can start a conversation on your phone and pick it up later on your computer. The integration with Gmail and LinkedIn works well without delays. We did notice some occasional loading times when processing complex requests or large documents, but overall the performance is consistent and reliable for everyday use. The best part is that basic features work offline, so you can access your conversations even without an internet connection. Winner in this category |
| Design Prod Apps's expert score for the 'Design' aspect of each app. | 8.5 Proton VPN's design philosophy centers on functionality and privacy over flashy aesthetics, which works well for its target audience of privacy-conscious users. The interface is clean, professional, and focuses on providing clear information about privacy and security features. Design strengths we observed include:
The design experience is significantly better than competitors like Turbo VPN and Now VPN, with no advertising interruptions. Users consistently praise the app's clean interface and professional appearance, making it one of the most trustworthy-looking VPNs available. While the core interface design is excellent, some users find the interface less intuitive than more user-friendly alternatives. However, this is a minor issue compared to the overall design quality. For users who value a clean, professional interface, Proton VPN offers one of the best experiences available. Alternatives like Thunder VPN offer more user-friendly design, while NordVPN provides a more modern interface. We rate design at 8.5 out of 10—excellent design principles with professional aesthetics that inspire trust and confidence. Winner in this category | 8.0 The app looks clean and modern. It's easy to find what you need without getting lost in menus. The chat interface is well-designed with clear differences between responses from different AI models. We liked how the app works the same way whether you're on Android, iOS, or desktop. It adapts nicely to different screen sizes. The dark and light theme options are a nice touch, and you can customize the interface to your liking. The mobile version works really well too - you can easily access your AI conversations on your phone without any issues. |
| Value for Money Prod Apps's expert score for the 'Value for Money' aspect of each app. | 8.5 Proton VPN's value proposition is excellent for privacy-conscious users, offering a genuinely useful free service with no ads and comprehensive privacy protection. The app provides exceptional value for users who prioritize privacy over cost. Value strengths include:
The free tier's value is exceptional, offering unlimited bandwidth with no ads and comprehensive privacy protection. However, some limitations affect the overall value:
The premium pricing is higher than some competitors, but the Swiss-based privacy protection and independent audits justify the cost for privacy-conscious users. Premium VPN services like NordVPN offer more comprehensive features for similar pricing, while Thunder VPN provides a more user-friendly free experience. For users seeking genuine privacy protection, Proton VPN offers exceptional value. Alternatives like NordVPN provide more server locations, while Thunder VPN offers a more user-friendly free experience. We rate value for money at 8.5 out of 10—excellent value for privacy-conscious users with exceptional free tier and premium features that justify the cost. | 9.0 Merlin AI offers great value. You can use it for free without creating an account, and you get 102 queries per day across all the major AI models. This free access to ChatGPT, Grok AI, DeepSeek, Gemini, Claude, and Perplexity AI in one app saves you from needing multiple expensive subscriptions. The premium plan adds useful features like voice chat, advanced AI tools, and team collaboration. The pricing is reasonable, making it a good choice for students, professionals, and anyone who wants to boost their productivity. When we compared it to individual subscriptions for these AI services, Merlin AI saves you money while offering more convenience. You really can't find another tool that gives you this much value for so little cost. Winner in this category |
| Ease of Use Prod Apps's expert score for the 'Ease of Use' aspect of each app. | 7.5 Proton VPN provides good usability with its one-tap connection approach, though the interface is more complex than simpler alternatives. The core functionality is straightforward, but the advanced features require some technical knowledge to use effectively. Usability strengths include:
However, the ease of use is somewhat compromised by the complexity of advanced features. Some users find the interface less intuitive than more user-friendly alternatives, and the advanced privacy features require some technical knowledge to configure properly. While the core interface is generally easy to use, the complexity of advanced features may overwhelm casual users. For users seeking a truly simple VPN experience, alternatives like Thunder VPN offer a more user-friendly interface, while NordVPN provides a more intuitive experience. We rate ease of use at 7.5 out of 10—good core usability with professional interface, but complexity of advanced features may overwhelm casual users. | 9.0 Merlin AI is one of the easiest AI assistants we've tried. You can start using it right away without any complicated setup. The free tier gives you 102 queries per day, which is plenty to test everything out. Installing it is simple, and it works great on both Android and iOS. Switching between AI models is super easy - just tap to change from ChatGPT to Grok AI to Claude, and so on. The integration with Gmail and LinkedIn works smoothly. You don't need to configure anything complicated. The free tier lets you explore all the features without committing to anything, which makes it easy to learn at your own pace. We give it a 9 out of 10 because it's really user-friendly, though some of the more advanced features might take a bit of time to figure out. Winner in this category |
| Security & Privacy Prod Apps's expert score for the 'Security & Privacy' aspect of each app. | 9.5 Proton VPN's security and privacy practices represent the gold standard in the VPN industry, offering exceptional protection that goes far beyond basic VPN services. The app's commitment to privacy and security is unmatched by competitors. Security strengths include:
Proton VPN excels in providing genuine privacy protection that goes beyond marketing claims. The Swiss-based privacy protection and independent audits provide unmatched transparency and trust. Users consistently praise the app's privacy features and security practices. For users who prioritize privacy and security, Proton VPN offers the most comprehensive solution available. Alternatives like NordVPN provide good privacy protection, while Thunder VPN offers basic privacy features. We rate security and privacy at 9.5 out of 10—exceptional privacy protection with independent verification and transparent practices that inspire complete trust. Winner in this category | 7.0 For security and privacy, we give Merlin AI a 7 out of 10. The app uses standard encryption for your conversations and personal data, which is good. However, since it connects to multiple AI providers, your data might be shared with these third-party services. This is mentioned in their privacy policy, but it's something to be aware of. The app doesn't ask for unnecessary permissions, but remember that your conversations and any documents you upload are processed by external AI services. While the company is transparent about how they use data, we would have liked more control over what gets shared with which AI providers. They do a good job of being upfront about it, but some users might want more control over their data. |
| Conclusion A summary of our findings and final thoughts for each app. | Proton VPN represents the gold standard for privacy-focused VPN services, offering exceptional privacy protection with Swiss-based privacy laws and independent security audits. While the app delivers on its core promise of secure, private VPN access with no ads, some users report connection issues and speed limitations that may impact the overall experience. The app's exceptional popularity (50M+ downloads, 4.7-star rating) reflects genuine demand for privacy-focused VPN services, and many users do find value in its comprehensive privacy protection. However, the recent rating decline (4.7 to 4.04 in last 100 reviews) and increasing complaints about connection issues suggest that the service may be experiencing some technical challenges. For users who prioritize privacy over performance, Proton VPN provides the most comprehensive privacy protection available. For users seeking a more user-friendly VPN experience, Thunder VPN offers a more intuitive interface with better performance, while NordVPN provides more comprehensive features with better reliability. For those who prioritize privacy above all else, Proton VPN remains the best choice available. | Merlin AI stands out as an exceptional all-in-one AI assistant that successfully combines multiple AI models with practical tools. The generous free tier makes it accessible to everyone, while the premium features offer significant value for power users. For anyone looking to consolidate their AI tools into one powerful platform, Merlin AI delivers an impressive and well-rounded experience. |
| Our Recommendation | ||
