Classic Nim vs MonoBanker

The classic board game Nim. Players take turns removing stones from piles and try not to be the last one to remove a stone. Features a configurable board, one and two player modes, as well as a leveled AI.

The banker just lost $200 again. Someone's making change for a $50 with three $20s. Half the bills are stuck inside the box lid. It's game night, and it's chaos. MonoBanker fixes it. Your phone becomes the banker — and a really good one. Add your players, set a starting balance, and pay each other with a single drag across the screen. The math, the change-making, the "wait, was that $300 or $3,000?" — all handled. No accounts. No internet. No ads. Just cash, for the table. KEY FEATURES Drag to pay Touch a card, drag it onto another, type the amount. Done. It feels like sliding bills across the table — except nobody's palming extra $100s. The Bank, with infinite money Drop your card on the Bank to pay taxes and fees. Drop the Bank on your card when it's your turn to collect. The Bank never runs out, never asks for change, and never wanders off to get a snack. Everybody pays everybody Tap the All card and one drag charges — or pays — every other player at once. Group fines, birthday rules, the weird house rule your cousin invented at 1 AM — all sorted in seconds. Smart suggested amounts After a few rounds, your most-used payments show up as one-tap chips above the numpad. Stop retyping the same $1,500 a hundred times. Optional dice (because someone always loses one) Switch on the dice card to roll two dice right inside the app. One tap, instant chaos. Transaction history with Undo Every payment is logged. Tapped Confirm too soon? Undo Last puts the money back. If anyone wants to argue, the receipts are in History. Rearrange the table Drag cards around to reorder, add players mid-game, or remove the one who keeps quietly siphoning bills out of the box. Saved players Play with the same crew every game night? MonoBanker remembers their names and colors so you're not retyping "Dad" for the fifth time. Pick your currency Dollars by default. Switch to euros, pounds, yen, rupees, won, even Bitcoin — your game, your symbol. Built for game night The layout adjusts from 2 players to a packed table, the colors stay readable across the room, and the haptics make every payment feel satisfying. Pick any starting balance — the rules are yours. PRIVATE BY DESIGN Your data never leaves your phone. No accounts, no servers, no analytics, no trackers, no ads. MonoBanker couldn't phone home if it wanted to — there's no home to phone. OPEN SOURCE The whole codebase is on GitHub. Audit it, fork it, fix our bugs, send pull requests. We have nothing to hide. FREE, FOREVER MonoBanker is free with zero ads, zero in-app upsells, and zero locked features. If you'd genuinely love to throw a few bucks our way, there's a tip jar in Settings — but the full app works exactly the same without it. GREAT FOR • Family game night • That four-hour board game that needs to actually end • Any tabletop game that uses cash • Replacing torn, missing, or dog-chewed bills • Speeding up your slowest player's turn Grab the app, grab some dice, and let your phone do the banking while the table does the trash-talking.