EXPENSE·AI Vol. I — A Traveler's Ledger
A pocket ledger, est. 2026

Expense,
recorded.

A pocket ledger for travelers — for the Southeast Asian THB baht, VND dong, IDR rupiah, PHP peso, MYR ringgit, and the USD dollar.

[ Join the waitlist ] Launching soon. No card, no spam.
Recorded
Date
Description
Cur.
Amount
Mar 18
Coffee — Saigon morning
THB
45.00
Mar 18
Grab to Ben Thanh market
VND
82,000
Mar 19
Co-working day pass, Canggu
IDR
185,000
Mar 19
Roti canai, Brickfields
MYR
9.50
Mar 20
Pad thai, Sukhumvit Soi 38
THB
120.00
Mar 20
—
—
—
Balance, week ending Mar 20 ▸ Carried forward
§ II · The Entries

What the ledger remembers, so you needn't.

Six entries, recorded in the order a traveler typically meets them — from a 45-baht coffee to the month's quiet reckoning.

Date Feature & Description Time saved
Mar 18
Type. Categorized. Recorded.
Write the entry the way you'd tell a friend — "coffee 45 baht", "grab 82k dong" — and the ledger does the rest. No dropdowns, no decimals, no taxonomy lecture.
 vs. taps~ 11s each
Mar 18
Six currencies, one page.
Switch from THB to IDR mid-sentence. The ledger keeps a running balance per currency — and a converted total, if you ask for one.
 vs. spreadsheet~ 4m / week
Mar 19
Categories, hand-stamped.
Food, Transit, Lodging, Shopping, Entertainment, and the rest. The nine categories a traveler actually keeps — and a margin to edit your own.
 setup0 min
Mar 21
Budgets, watched without nagging.
Set a monthly budget per category and currency. A quiet alert when you near the line in THB, in IDR, in the dong — never a chart that lectures.
 peace of minddaily
Mar 25
Export, in plain CSV.
Every entry, every category, every conversion — exported in the format your accountant in Vilnius (or Tallinn, or Lisbon) actually reads.
 at tax time~ 2h
Mar 31
A month, in one quiet column.
Monthly closing. What you spent in Bangkok, what stayed in Bali, what the visa run cost in pesos. Trend charts, weekly breakdowns. One screen, no charts that lie.
 to read~ 30s
§ III · The Stamps of the Region

Six currencies, recognised on sight.

From the baht in Bangkok to the rupiah in Bali. Type the amount; the ledger knows the stamp.

THBBaht
IDRRupiah
VNDDong
PHPPeso
MYRRinggit
USDDollar

The ledger keeps each entry in the currency it was paid in — and on the paid tier, will convert on request at daily mid-market rates. Nothing is quietly rounded.

§ IV · Margin Notes

Questions, scribbled in the margin.

※ What is ExpenseAI, in one line? +
An AI-powered expense tracker for iOS and Android. Instead of filling out forms, you type expenses in plain language — "Coffee 45 baht" — and the AI extracts the amount, detects the currency, assigns the right category, and logs it.
※ Which currencies does it actually support? +
Six, native: Thai Baht THB, Indonesian Rupiah IDR, Vietnamese Dong VND, Philippine Peso PHP, Malaysian Ringgit MYR, and US Dollar USD. The AI infers the currency from how you write — "82k IDR", "35,000 dong", "45 baht" all parse correctly.
※ Is it really free? +
Yes. The free tier gives you ten entries a day, basic categories, and thirty days of history — permanently, no credit card. Upgrade to Premium for $2.99 / month (or $29.90 / year) for unlimited entries, budget alerts, CSV export, trend charts, and multi-currency conversion.
※ How accurate is the AI categorization? +
Accurate enough to feel boring. The ledger parses amounts, currencies (including shorthand like "35k IDR"), and the spending category. The parsed result is shown to you before it's recorded — you can correct any column with a tap.
※ Where does my financial data live? +
On Supabase with row-level security — meaning only you can read your own records. Transmitted over HTTPS. Never sold, rented, or shared. Payment is handled entirely by Apple or Google through their stores; no card data ever touches our servers.
※ Who is this for, exactly? +
Expats living in Southeast Asia, digital nomads moving between countries, locals who want a fast modern tracker, and anyone who deals with multiple SE Asian currencies daily.
§ V · Correspondence

Drop a line into the ledger.

A bug? A currency we should learn? A request from your accountant? Write — we read every line, in Klaipėda.

Or write directly to start@djump.io. We answer every letter, usually within two business days.

§ VI · The Signature

Reserve a seat in the ledger.

We're inking the final pages. Leave your address and you'll be the first to know when ExpenseAI opens for travel — on iOS and Android, this year.

The Free Hand

$0 · forever
  • Ten entries each day
  • All six currencies
  • Thirty days of history
  • Plain-language typing & AI categorization

Signed,

ExpenseAI

— Klaipėda, in the year two thousand and twenty-six.

iOS and Android, launching later this year. One letter at launch — no spam, no second mailing. Your address is kept on a single sheet of paper, never sold.