Building Premium iOS Experiences
Expert team developing modern applications for enhanced security and user experience on mobile devices
Our Solutions
Trusted by 500K+ users worldwide
Military-Grade Encryption
Secure browsing across 50+ countries with enterprise-level protection
Storage Optimizer
Free Up to 60% Space
99.9% Uptime
Enterprise-level reliability you can count on
Est. 2019
Innovating Mobile Security
HOLLEN s.r.o. combines cutting-edge technology with user-centric design to deliver iOS applications that prioritize privacy and performance
Featured Review
HOLLEN's VPN transformed how we protect our team's data. The interface is intuitive, and performance is exceptional.
Martin Kovač
CTO, TechStart
Our Applications
Available on App Store
Free
VPN Pro
Security
Free
Storage Cleaner
Utility
$2.99
Battery Optimizer
Performance
Free
Ad Blocker
Privacy
ready to elevate your ios experience?
Connect with our team in Bratislava
Let's discuss your security needs