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Lumi: Budget & Expense Tracker
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Lumi: Budget & Expense Tracker

Log any expense in 3 seconds — no bank, no manual entry

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Lumi is a privacy-first expense tracker for iPhone that lets you log spending in about three seconds — by voice, by scanning a receipt in any language, from Apple Pay, or by double-tapping the back of your phone (Back Tap). It works without any bank login, keeps your data on your device, and adds an AI month-end forecast, budgets, savings goals, 150+ currencies, and Family Sharing. A lightweight, private alternative to bank-linking apps like Spendee, Buddy, ZenMoney, CoinKeeper, Rocket Money, and YNAB.

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Features

  • Auto-Log expenses in ~3 seconds — no manual typing
  • Voice input — say the expense out loud
  • Receipt scanning in any language
  • Apple Pay auto-logging
  • Back Tap logging (double-tap the back of your iPhone)
  • No bank login — privacy-first, data stays on device
  • AI month-end spending forecast
  • Budgets and savings goals
  • 150+ currencies for travel and multi-currency use
  • Family Sharing
  • Free plan, with optional Premium from $1.99/month

Use Cases

Track daily spending without connecting a bank account

Keep tabs on Apple Pay purchases automatically

Log expenses hands-free by voice or a tap

Manage money across multiple currencies while traveling

Digitize and organize paper receipts

Share and track a household budget with family

See where your spending will land before month-end

A private alternative to Spendee, Buddy, ZenMoney, CoinKeeper, Rocket Money, and YNAB

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