Wallrap vs Random Number Generator

Compare two saved acoustic traces position by position to see agreement, disagreement and uncertain taps. HOW IT WORKS 1. Mark at least three positions, calibrate for the wall, and save two traces using the same positions. 2. Open History, tap Compare, select the passes, and confirm matching positions and calibration. 3. Reverse the second pass if needed, inspect each position, and share the comparison. An illustrative example is available. Listen, Trace, calibration and the multi-pass survey composer remain available. The composer now opens from History so it does not cover the bottom navigation. WHAT TO KNOW Repeatability does not prove a stud or a safe mounting point. Acoustic taps cannot identify wiring, pipes or other hidden hazards. Independently verify before drilling. Different trace lengths are rejected; low-confidence taps and edge classifications remain uncertain even when labels match. iPhone and iPad.

Need a fair random number, dice roll, or coin flip in seconds? Set your range, tap Generate, and get instant results—no account required. Picking teams, drawing lots, or creating passwords? Spin the lottery wheel, roll up to nine dice, flip coins with stats, generate secure passwords, pick random colors, or split names into balanced groups—all in one offline app. • Number generator: custom range, count, unique or repeat • Dice roller: 1–9 dice with total points • Coin flip: single or batch, heads/tails stats • Lottery wheel: custom options, fair spin • Password generator: length and character types • Color picker: RGB/HEX, free or ranged • Team splitter: import list, random groups • History and 7-day usage trends • Offline-first: data stays on your device Perfect for games, classroom picks, daily decisions, and quick fair choices.