Compare Proton VPN and Cool VPN Pro: 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. | Cool VPN Pro offers budget-friendly VPN access with thousands of servers, but recent reliability issues and a declining rating (3.86 in last 100 reviews vs 4.8 overall) raise concerns about connection stability and service quality. | |
| 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 | 5.8 |
| 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 | 7.0 Cool VPN Pro offers a respectable feature set that covers the essentials of VPN functionality. The app advertises thousands of servers across multiple countries, which is competitive for this price range. The ability to automatically connect based on network type (Wi-Fi or cellular) adds convenience for users who want constant protection. The app-specific VPN routing stands out, letting you choose which applications use the VPN connection while others access the internet directly. This flexibility proves useful when you need VPN protection for specific apps but want normal speeds for others. The one-tap connection interface makes getting online quick—when it works properly. The feature set feels somewhat basic compared to premium competitors. Split-tunneling for websites is absent, server information is limited, and the selection process lacks granularity. Detailed connection statistics and advanced security options that power users expect are missing. The promised "unparalleled VPN performance" in the app description doesn't match what users actually experience. The core VPN features are present, but execution has become inconsistent. Advertised features like "one-tap connection" now frequently result in extended "network optimization" screens that never resolve. Reliability is a feature in itself for VPN apps, and Cool VPN Pro's recent struggles here significantly impact the overall rating. |
| 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. Winner in this category | 4.5 Performance is where Cool VPN Pro's current struggles become most apparent. The app's overall 4.8-star rating tells one story, but the recent 3.86-star average from the last 100 reviews tells another. This significant drop reflects widespread performance issues that have emerged recently. Connection reliability is the primary concern. Numerous recent reviews report that the app gets stuck on "network optimization" screens and fails to establish connections. Some users mention waiting 10 minutes or more for connections that never complete. Others report that the app simply "doesn't work" at all, despite previously functioning normally. This inconsistency is particularly problematic for a VPN service where reliability is paramount. When connections do establish, speed performance is mixed. Some users report adequate speeds for browsing and streaming, with one reviewer praising "blazing fast, unlimited speed." However, an equal number complain about extremely slow connections—one user described speeds of "3 kbit per second," which is essentially unusable. This wide variance suggests inconsistent server quality or capacity issues. The app's stability has also deteriorated. Multiple reviews mention increased crashes, freezing, and unexpected disconnections. Battery drain is mentioned by several users, suggesting the app may not be efficiently managing system resources. The long loading times and "optimization progress not ended" errors indicate potential server-side or network infrastructure problems that the developers haven't adequately addressed. Server availability appears inconsistent as well, with some users reporting that "all servers are down" during their attempts to connect. While it works reliably for some users (particularly those in certain regions like Iran and Myanmar where it remains popular), the overall performance trajectory is concerning. For a VPN service at any price point, the level of connection failures and performance issues we've documented is difficult to justify. |
| 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 | 6.5 The design of Cool VPN Pro follows a fairly standard VPN app layout with a prominent connection button as the centerpiece. The interface is straightforward with minimal distractions, which makes it approachable for users who aren't technically savvy. The color scheme is simple, and the main connection status is clearly visible. Navigation between servers and settings is uncomplicated, with most options accessible within a few taps. The server list is organized by country with flags for easy identification, and connection status indicators use familiar colors (red for disconnected, green for connected). This conventional approach works well enough for basic functionality. However, the design feels dated compared to modern VPN apps like NordVPN or ExpressVPN, which have invested heavily in polished, intuitive interfaces. The visual hierarchy could be improved, and some screens feel cluttered with promotional content for premium features. The design lacks the sophistication and attention to detail that makes premium apps feel premium. The biggest design issue is the intrusive advertisement placement in the free version. Multiple users complain about ads appearing at inconvenient moments, disrupting the user experience. While monetization through ads is understandable, the implementation here feels aggressive and detracts from the overall design quality. |
| 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. Winner in this category | 5.0 Cool VPN Pro's value proposition is complicated. The free tier exists, which technically makes it accessible to anyone, but the ad-heavy experience and limited server access mean you're getting what you pay for—or less. Based on user feedback, the free version has become increasingly restricted and difficult to use without constant ad interruptions. The premium pricing (€2.69 to €104.99) sits below what you'd pay for premium services like ExpressVPN, making it appear competitive. However, value isn't just about the price—it's about what you receive for that price. With Cool VPN Pro's declining reliability and increasing connection issues, the question becomes whether saving a few euros monthly is worth the frustration of a VPN that doesn't consistently work. Users who subscribed when the service was more reliable express disappointment with recent performance degradation. Several reviews mention that "it was wonderful when it was free" or that the service has declined since they first started using it. This suggests that the value equation has shifted negatively over time, with the company perhaps struggling to maintain service quality as it scales. Compared to Brave Private Browser's integrated VPN features or even AVG Secure VPN's straightforward offering, Cool VPN Pro doesn't clearly differentiate itself on value. The extensive advertisements, reliability issues, and lack of transparency about server quality make it difficult to recommend as a strong value option, even at its lower price point. If you need a VPN that consistently works, spending a bit more on a proven service might ultimately provide better value. |
| 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. Winner in this category | 6.0 When Cool VPN Pro works as intended, it's reasonably easy to use. The basic concept is simple: open the app, tap the connect button, and you're protected. For users who just want to bypass regional restrictions without diving into technical settings, the straightforward approach has merit. First-time users can get connected without reading documentation or watching tutorials. The app provides some helpful automation features, like the option to auto-connect when joining specific networks. Setting these up is relatively intuitive, and they work reliably once configured. Server switching is straightforward, with a simple list interface that lets you select your desired location quickly. However, ease of use breaks down when things don't work smoothly. A significant number of recent reviews mention getting stuck on loading screens, particularly the "network optimization" phase. When connection attempts fail, error messages are often vague and don't provide actionable solutions. This creates frustration, especially for less technical users who don't know how to troubleshoot VPN connection issues. The free version's ad interruptions also impact usability. Users report that ads appear when trying to connect or switch servers, adding friction to what should be a seamless process. Additionally, the distinction between free and premium features isn't always clear upfront, leading to confusion when certain servers or options are locked behind the paywall. |
| 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 | 5.5 Cool VPN Pro claims a no-logs policy, stating it doesn't track or keep logs of user activities. The app advertises a "high safe encryption algorithm" for securing connections on public Wi-Fi. These are standard VPN privacy claims, but the lack of transparency about specific encryption protocols raises concerns. Unlike premium VPN services that undergo independent security audits and publish detailed transparency reports, Cool VPN Pro provides limited information about its security practices. The privacy policy exists but isn't as comprehensive or clear as what you'd find with established providers like NordVPN or ExpressVPN. There's no mention of independent audits or third-party verification of their no-logs claims. The app requires various permissions, which is normal for VPN functionality, but the privacy implications of the extensive ad network integration in the free version aren't clearly disclosed. When you're using a VPN partly for privacy, having multiple advertising SDKs tracking your behavior creates an inherent contradiction. Premium subscribers avoid this issue, but free users should be aware of the trade-off. The company is registered in Singapore (HOPE DEVE PTE. LTD.), which has reasonable data protection laws, but it's not in a jurisdiction known for strong privacy protections like Switzerland or Iceland. The lack of clear information about server ownership (owned vs. rented) and data handling practices makes it difficult to fully assess the privacy posture. For users primarily concerned with bypassing geo-restrictions rather than maximum privacy, these concerns may be less critical. |
| 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. | Cool VPN Pro finds itself at a crossroads. While it has built a substantial user base of over 10 million downloads and maintains a historically strong 4.8-star rating, the recent performance decline tells a different story. The sharp drop to 3.86 stars in the most recent 100 reviews reflects growing frustration with connection failures, excessive advertisements, and reliability issues that have emerged over time. For users primarily seeking to bypass internet restrictions in regions with heavy censorship, Cool VPN Pro still serves a purpose, particularly given its lower price point and accessibility through a free tier. The app works adequately for some users, especially those who successfully connect and maintain stable sessions. However, the inconsistent performance makes it difficult to recommend with confidence. The core issue is reliability. A VPN needs to work when you need it, and Cool VPN Pro increasingly fails this fundamental test. The frequent connection failures, long optimization delays, and server availability problems create an unpredictable experience. When you're paying for a service—even a budget one—you should expect consistent functionality. If you're considering Cool VPN Pro, we'd recommend exploring more established alternatives first. NordVPN and ExpressVPN cost more but deliver significantly better reliability and performance. Brave Private Browser offers integrated VPN features with better transparency, while AVG Secure VPN provides a straightforward, reliable option without the connection issues. The money saved on Cool VPN Pro's lower pricing may end up costing you more in time and frustration dealing with a service that doesn't consistently deliver on its promises. |
| Our Recommendation | ||
