Standing at a collection? Sort the lot here: one tap per card — PICK for pick-tier singles, BULK for true bulk. Everything is counted on this device only; it works with no signal at all.
The pick threshold is your setting. It ships at your ruled line — $2.50 (bulk decision D-5, ruled Oct 30) — a card above it flags for a second look. Change it or clear it any time.
Durable storage: this browser does not say. Keep a backup file — it is the only copy outside this device.