Private AI Expense Tracker

Ask where your money went, without sharing your bank.

Lumi combines fast natural expense entry with grounded spending answers, so you can understand your month without accounts, ads, or bank sync.

Lumi app screenshot showing Lumi Agent answering a spending question.

Natural input first, grounded answers later.

Type short spending notes, save the expense, then ask Lumi for month-level insight based on your own records.

Get Lumi

Smart text entry

Type naturally instead of tapping through a heavy form. Lumi turns short notes into reviewable expense details.

  • Works well for quick notes like "coffee 25k"
  • Designed for fast manual tracking
  • No account, ads, or bank connection required

Grounded spending answers

Ask Lumi where money went and get answers tied to your tracked spending, recurring bills, and monthly categories.

  • Review current-month categories
  • Understand recurring payments
  • Keep private records on your iPhone

Start tracking privately today

Experience the cleanest iOS personal finance design right now.

Download on the App Store