Tractor tracker
Add everyone, then log each hand: tap who moved up (or down) and by how many levels. That is the whole tool. The board keeps every player's level from 2 to A, with a history and a chart, and flags anyone who reaches A. Want it to do the counting? Turn on Advanced mode and enter the points the opponents captured instead. Everything stays on your device: this page can't make network requests.
Standings
Hand 1
House rules
The quick way (default)
Every player's score is a level, from 2 up to A. Most of the time the table already knows how a hand went, so the tool just records it: tap who moved this hand and whether they went up 1, 2 or 3 (or down), and the board updates. It keeps the running levels, a hand-by-hand history and a 2→A chart, and it flags anyone who reaches A so you can call the game. The attacker's points are an optional note.
Advanced mode: let it do the math
Flip on Advanced and the tool works the levels out for you. Each hand the leader’s side (the leader, plus any friends in Finding Friends) defends its level and the opposing side collects points; a five, ten and king are worth 5, 10 and 10, so there are 100 per deck. Enter what the opponents captured and it reads against a flip-line and a step: capture nothing and the leaders go up 3, under a step +2, under the line +1; reach the line and the opponents take the deal, climbing one more level per step above it. On the classic 80 / 40 board that is 0 → +3, under 40 → +2, under 80 → +1, 80 → take the deal, and a clean 200 → +3. If the opponents win the last trick the kitty counts toward their total, multiplied (×2 single, ×4 pair, and up). Every number is editable, and you win by defending A as the leader (or first-to-A).
Does any of this leave my device?
No. The page is locked down with a connect-src 'none' policy, so the browser physically blocks every network request. Names, levels and house rules are saved only in your browser, so the game survives a reload. “New game” wipes it.