Personal Finance OS
Local-first system

SIX Personal Finance OS

Private financial intelligence, under your control.

SIX helps the account owner review, organize, and understand authorized financial information. Provider data is staged for review before it becomes part of the trusted local record.

FINANCE / CONTROL PLANE
Provider inputAuthorized
Review gateActive
Canonical ledgerLocal
Money movementDisabled
connection scope verified
provider records staged
awaiting owner approval

Operating principles

Control is part of the architecture.

SIX is designed around deliberate boundaries: who authorized the data, where it is processed, and when it becomes trusted.

01 / LOCAL-FIRST

Local-first

Core financial review and organization happen in the owner-controlled operational environment.

02 / AUTHORIZED

User-authorized

Connections begin only when the account owner explicitly starts and completes provider authorization.

03 / GATED

Approval-gated

New provider records are staged for review before entering the canonical local ledger.

04 / TRACEABLE

Evidence-backed

Summaries are designed to remain connected to the records and provenance that support them.

05 / MODULAR

Provider-independent

Financial providers act as adapters; no provider defines the canonical system of record.

06 / PRIVATE

Privacy-preserving

Financial records are not sold, used for advertising, or collected for lending decisions.

Owner tools

A clearer view of personal finance.

SIX brings complementary review and analysis workflows into one private operating system.

  • Account and transaction review
  • Budgeting and cash-flow analysis
  • Net-worth tracking
  • Recurring payments and subscriptions
  • Portfolio and crypto intelligence
  • Liabilities and debt analysis
  • Deterministic risk and scenario analysis
  • Financial summaries and alerts

Controlled data flow

Provider input is not automatically trusted.

Records move through a defined review path before becoming canonical Finance data.

Authorized financial provider
Encrypted provider connection
Staged local review
Canonical local ledger
Analytics and summaries

Plaid connection disclosure

Institution access begins with the account owner.

SIX uses Plaid to connect user-authorized financial institutions. Plaid Link handles the authentication flow, so SIX does not receive or store the user’s bank password. Long-lived provider access tokens remain server-side and are stored in encrypted form. Financial records are not sold or used for advertising. Plaid is a service provider; this description does not imply endorsement.