About Us

Building Modern
iOS Solutions

KESTEN d. o. o. is a dedicated team of iOS developers, designers, and security specialists committed to crafting applications that genuinely improve people's digital lives.

Founded with a clear mission — to bring enterprise-grade security and performance tools to everyday iPhone users — we combine deep platform knowledge with a passion for clean, intuitive design.

Every product we ship goes through rigorous testing to ensure reliability, privacy compliance, and a seamless user experience. Our apps are built natively for iOS, leveraging the full power of Apple's ecosystem.

Privacy Focused

Zero logs, zero tracking, zero compromises.

Native iOS Craftsmanship

Built with Swift for peak performance.

Dedicated Support

Real humans ready to help anytime.

KESTEN development team workspace
Our Products

Apps That Make a Difference

Two flagship iOS applications designed to protect your privacy and optimize your device performance.

KESTEN VPN

Secure. Private. Always On.

A professional-grade VPN built exclusively for iOS. KESTEN VPN wraps every connection in AES-256 encryption, masks your IP address, and routes your traffic through a global network of secure servers — giving you real privacy on any network.

  • AES-256 military-grade encryption
  • Zero-logs policy — your data stays yours
  • One-tap secure connection
  • Global server coverage
  • Automatic kill switch protection
  • IKEv2 & WireGuard protocol support
KESTEN VPN

KESTEN Cleaner

Clear the Clutter. Reclaim Your Device.

KESTEN Cleaner intelligently scans your iPhone for junk files, redundant caches, duplicate photos, and unused data — then clears them in seconds. The result: more storage, faster performance, and a device that feels brand new.

  • Smart junk file detection & removal
  • Duplicate photo finder
  • Cache & temporary file cleanup
  • Detailed storage breakdown analytics
  • Large file manager
  • Memory optimization boost
KESTEN Cleaner