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.