Plexu

Plexu is a two-tool desk for anyone who works with footage and numbers. It pairs a precise SMPTE timecode calculator with a prime-number workbench, and every readout you produce is saved so you can copy or share it later.

Reel Clock is the timecode tool. You dial in a timecode as hours, minutes, seconds and frames, choose a frame rate from 23.976 up to 60, and pick drop-frame or non-drop counting. From there you add two timecodes, subtract one from another, or convert a timecode to a different frame rate. Tap Solve and Plexu shows the result, the exact total frame count, the real running time, and the drift between drop-frame and non-drop-frame counting.

Split Grid is the number tool. Type any whole number and Solve breaks it into its prime powers, lists every divisor with running totals, and reports the divisor count and Euler's totient. Switch to Set mode to enter several numbers and get their greatest common divisor, least common multiple, and whether they are coprime.

Both tools keep a history you can filter by tool, reopen for the full breakdown, or clear anytime. Haptics and the scanline backdrop toggle in Settings.