Follow on X →
Now on the App Store

Your private Ham Radio database on iPhone.

Instant Callook.info + QRZ lookups • Local SwiftData storage • JSON export & import • 100% private.

Get HamsterDB on the App Store →

No account • No cloud • No tracking • Your data never leaves your iPhone

HamsterDB edit station screen on iPhone

The HamsterDB edit station screen

POWERFUL • PRIVATE • SIMPLE

Everything a serious ham needs

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Instant Callsign Lookups

Callook.info auto-fills name, location & license class. QRZ paste-in adds email and more.

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Organize & Sort Instantly

View by Call Sign, Name, or Date. Ascending or descending — find any station fast.

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Export & Share JSON

Backup your log or share with other hams. Import works seamlessly.

HamsterDB is built exclusively for iPhone • 100% private local storage
Developed with love for the amateur radio community