S7 Link vs Ruler & Digital Caliper

A NEW APP, THE FUNCTIONS YOU KNOW • All the functions and tabs of previous versions are kept: pushbutton panel, manual commands, variables, alarms, point tables, PLC links, CPU status, date and time, backup and sharing • Updating keeps your connections, tables, options and purchases; backups made with iS7 can be restored SUPPORTED PLCS CPUs of the S7-300, S7-400, S7-1200 and S7-1500 families and LOGO!, reachable on the network through ISO on TCP (RFC 1006). S7-1200 and S7-1500 need PUT/GET access enabled and DBs without optimized access. IN-APP PURCHASE Alarm management on real PLCs is available as an in-app purchase. Whoever has already bought it keeps it. SAFETY S7 Link can write to PLCs and act on machinery in operation. Use it with care and at your own risk, and do not rely on it for safety functions. In the background, iOS decides when alarms are checked, and it can be hours apart. Requires iOS 26 or later. Siemens, SIMATIC and S7 are trademarks of Siemens AG. S7 Link is an independent product, not affiliated with or endorsed by Siemens.

Measure small, flat objects on your iPhone with an edge ruler and two-jaw digital caliper. On supported iPhone models, start with an approximate device-based screen scale. For a physical check, align a ruler with a 20 mm reference on screen. Lifetime access requires a separate one-time purchase and adds repeated measurements and a session workspace: view a result, use it as a reference, and compare the next object. Results and references remain in the current session. TWO FOCUSED TOOLS • Edge ruler with a movable origin and end marker • Digital caliper with two independently adjustable jaws • Magnified contact guide for placing markers at object edges • Fine-adjust controls for small position changes • Reset markers without resetting calibration FOUR UNIT FORMATS • Millimeters • Centimeters • Decimal inches • Fractional inches, rounded to the nearest 1/64 BUILT FOR REAL-WORLD ALIGNMENT Keep a small object flat against the usable screen edge, move the contact points to its edges, and read the result. Switch tools and units as you work. Use portrait or either landscape orientation, and lock orientation while aligning an object. PRIVATE BY DESIGN Measurement values and marker positions are calculated on your iPhone. There is no account, advertising, camera access, or measurement server. Limited privacy-conscious product analytics never include measurement values, marker positions, or calibration data. Calibration and preferences are stored locally. A PRACTICAL SCREEN TOOL Results depend on calibration, alignment, display settings, screen protectors or cases, and the object being measured. Recalibrate after changing iPhone or Display Zoom. For important measurements, compare the result with a known physical reference. Ruler & Digital Caliper is not a certified measuring instrument. Support: https://rulercaliper.app/support Privacy Policy: https://rulercaliper.app/privacy Terms of Use: https://rulercaliper.app/terms