Lurnova Kyrelvo

Lurnova Kyrelvo is a finger measurement and ring preview utility for users who want to check ring sizes and see how different band widths look on their hand, with no account required and no functional limitations. - Measure finger base and knuckle widths in millimeters using sample hand photos, camera photos, or photos from your library. - Calibrate scale using hand length presets, a standard card edge in the photo, or a known ring size. - Convert measurements across US, EU, UK, and JP ring size charts. - Preview 80 ring designs at 1:1 millimeter scale on any finger, adjust placement and rotation, and filter by metal finish or band width. - Save combinations locally or export a summary image to your photo library. All features work offline on your device without an internet connection. There are no ads and no in-app purchases, and your measurements stay on your device.