One argument in three acts: confirm what you are owed, see what it costs you, keep more of it. Every chapter below is a real screen.
Home - what matters this month
Act I · Paycheck
The number at the top has to be true before anything built on it means much. ARTH starts at your offer letter.
Act II · Money
The commute, the desk lunches, the EMI - and the move you keep thinking about but have never priced.
Act III · Plan
One engine, the same answer every time, and a date attached to every action you can still take.
Three services, three narrow jobs, hard boundaries around each. Every money and tax figure comes from a deterministic rule engine.
Sarvam AI
Document digitisation
Indian payslips arrive as scans, phone photos, and PDFs that were never meant to be read by a machine - often not in English. Sarvam's document-digitisation API turns those pages into clean structured text before anything tries to interpret them.
Runs only on a document you uploaded. Returns text, never a decision.
Google Gemini
Structured interpretation
Gemini takes that text and proposes a structure: employer, pay period, each earning and deduction line, and a confidence rating per line. It also writes down what it is unsure about, as questions for you.
Proposes. Never confirms. Every line lands in your review queue before it counts.
OpenAI
Merchant categorisation
On-device rules resolve most transaction SMS on their own. What is left is one entry per distinct merchant - redacted, with long digit runs and exact amounts stripped - sent for categorisation. A cheap model does the labelling; only genuine disagreement escalates to a larger one.
Never sees your full inbox, personal messages, or account numbers. Your correction always overrides the label.
Google Cloud
Keys and encrypted storage
Documents live in encrypted object storage in the asia-south1 region, under per-user keys managed by Google Cloud KMS.
Encrypted at rest with AES-256-GCM. Deletable on your command.
Vendor names and logos belong to their owners and are shown here only to describe how ARTH is built. Tax figures are never produced by a language model - those come from a deterministic, versioned rule engine.
Six rules. A screen earns its place by keeping all six, however good the idea behind it was.
Home helps you do something, rather than restating a payroll table at you.
Every number says where it came from: a payslip, an SMS, or your own hand.
An answer changes when you confirm the record behind it.
Inputs and arithmetic on screen, for every cost and every estimate.
Tracked money is labelled tracked. It is a figure you can vouch for, not a balance.
Tax matters enormously for one month a year. The other eleven belong to the rest.
Controlled Android beta · Tax Year 2026-27 · Income-tax Act, 2025
ARTH checks you were paid what you were promised, every month.
