Ruler Compass Sensor Tools

Measure with a clean ruler, compass, level, angle, light, and saved-reading toolbox.

Measure quick jobs with compass, level, ruler, angle, flashlight, magnetic estimates, and saved readings. Sensor Toolbox helps you check the space around you while keeping device sensor limits clear.

LEVEL, ANGLE, AND RULER Use the bubble level, inclinometer, slope readouts, and a calibrated screen ruler for quick checks.

COMPASS, LIGHT, AND SENSORS See heading, optional coordinates, flashlight, and magnetic-field estimates. Avoid magnets and metal near compass readings.

SAVED READINGS AND EXPORT Lock measurements, save local history, share a clean measurement card, or export CSV when you need a record.

CALIBRATION AND LIMITS Calibrate before careful work. Phone sensors are estimates, and this app does not replace certified professional measuring or safety equipment.

SUBSCRIPTION INFORMATION This app requires a paid subscription or lifetime purchase for access to all tools. Weekly, yearly, and lifetime plans are available. Weekly includes a 7-day trial where available.

Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Apple ID account settings. Lifetime purchase does not renew.

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