Package Name:com.sb.ruler
SHA-256:fbeacae4258b51b8d8b084dffc52f1a1f3e60903f5e8394176ca73c671be86bf
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Precise measuring tools
Ruler, grid, calibration, and ring sizing in one clean workspace.
Ruler & Grid Studio
High-precision multi-unit rulers with a built-in grid for everyday measurements.
Smart Ring Sizer
Align a real ring with the guide to estimate diameter, circumference, and size.
Card Calibration
Use a standard card edge to improve real-world measurement accuracy.
Free Measuring Toolkit
Full-screen grids, scale presets, and measurement overlays are included for everyone.
Precise ruler, grid, calibration, and ring sizing tools.
Latest Version
1.0.1Uploaded by
卓國明
Requires Android
Android 7.0+
Category
Free Tools AppContent Rating
Everyone
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Flag as inappropriateLast updated on Jul 30, 2026
Ruler Studio is now completely free. Full-screen grids, scale presets, and measurement overlays are included for everyone.
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