AccountMaster Expense Tracker

Log an expense in 3 seconds. Type naturally and it auto-categorizes on-device. Split travel bills and export to Excel. Your data stays on your device — no tracking.

Meet your personal accountant.

Ah Cai gets out of your way. Open the app, tap "lunch 35" on the big keypad — done, filed under "Food." Three seconds. No menus, no category picking.

Why Ah Cai

• Fast: natural-language input, large keypad, three seconds an entry
• Accurate: on-device auto-categorization that learns your habits; no cloud, no network
• Complete: bill splitting, monthly stats, budget alerts, iCloud sync
• Private: data stays on your device (optional iCloud); no tracking, no ads

Features

• Quick entry: "Taxi 28" → Transport; "-8000" → Income (or tap the Income toggle).
• Auto categories: 8 expense + 5 income presets; correct it once and it remembers.
• Stats: monthly cash flow, category breakdown, daily trend, month-over-month.
• Bill splitting: split travel costs, auto-calc the fewest transfers, track refunds that offset expenses, and export the whole group to Excel or text to settle up in chat.
• Budget: set a monthly cap and get alerts.
• Backup & iCloud: JSON export, optional no-sign-in iCloud sync.

Privacy first — No account, no cloud categorization, no uploading your bills.

Free vs Pro — Free: tracking, list, monthly stats. Pro (one-time ¥6): budget alerts, export, themes.

Ah Cai — your private accountant.