Platterset

Platterset is a complete turntable setup companion: align your cartridge, match it to your tonearm, check platter speed, and keep a logbook of stylus hours and service. Everything is included in one purchase, with no subscription, no account and no ads. Your data stays on your device.

NEW IN 4.0
• Stylus timer: start it when the stylus drops and stop it when you lift the arm. The timer keeps running if you close the app, and each session adds to that stylus's hours.
• Wear projection: Platterset uses your own recent listening to show hours used, hours remaining and roughly when the stylus will reach its rated life.
• Turntable logbook: dated entries for alignment, tracking force, speed checks, stylus cleaning and replacement, belt changes and more. Save results straight from the Align and Speed tabs.
• Backup and restore: put all your setups, your logbook and your Alignment Lab comparisons in one file, and export the logbook as CSV.
• Siri and Shortcuts: start or stop a listening session, or ask how many hours are on the stylus.
• VTA / SRA height: see how far to raise or lower the arm pillar to change rake angle, worked out from your arm's effective length.

ALIGN
• Pivoted-arm geometry for Baerwald (Löfgren A), Löfgren B and Stevenson, with IEC, DIN and 7-inch single groove standards.
• Overhang, offset angle, effective length, null radii and the tracking-error curve, all calculated from your measured pivot-to-spindle distance.
• A printable 1:1 arc protractor (Letter and A4) with calibration bars.
• Alignment Lab compares up to six geometries on one arm, saves your comparisons and exports every curve sample as CSV.
• An anti-skate starting range based on tracking force and offset angle.

RESONANCE AND LOADING
• Arm and cartridge resonance against the 8–11 Hz target, with automatic conversion from 100 Hz to 10 Hz compliance and a hint for how much mass to add or remove.
• A phono loading calculator for MM/MI capacitance and MC resistance.

SPEED
• A tap timer that rejects stray taps, an on-screen strobe disc with fine drift readout, and a gyroscope speed and stability check made by resting your phone on the platter.
• A strobe reference table for 50 Hz and 60 Hz mains.

LIBRARY AND LEARN
• Reference specifications for 80+ cartridges and 40+ tonearms. Tap one to load it into the calculators.
• Setup guides, annotated diagrams and a glossary.

The calculations help you set up your equipment. Always follow your turntable and cartridge makers' instructions and confirm measurements on your own gear.

iPhone and iPad. No account, no network access, no in-app purchases.