CashFlow

About CashFlow

A modern approach to personal finance — built on systems thinking.

Our Mission

CashFlow exists to give individuals and families a clear, honest picture of their financial lives. We believe that financial awareness is the first step to financial freedom — and that the tools to achieve it should be accessible, intuitive, and built on sound principles.

Unlike budgeting apps that tell you what to do, CashFlow shows you what's happening. Track your stocks (accounts) and flows (transactions), understand the patterns, and make decisions from a position of knowledge.

The Stock & Flow Method

CashFlow is built on the Stock & Flow model from systems thinking — the same framework used to model climate systems, population dynamics, and supply chains.

In finance, stocks are things you can measure at a point in time — your bank balance, credit card debt, or net worth. Flows are rates of change — income coming in, expenses going out, transfers moving between accounts.

By modeling your finances as stocks and flows, CashFlow gives you a dynamic, real-time view of your financial system — not just a snapshot, but a living model that updates automatically with every transaction.

Stocks
Account Balances
Flows
Transactions
Snapshots
Anchor Points
Rules
Recurring Flows
Real-time balance = f(snapshots, flows)

Built with Modern Technology

CashFlow is powered by a proven, production-grade technology stack.

Python 3.12
Django 5.2
PostgreSQL
Redis
Celery
DRF 3.16
Bootstrap 5
Chart.js
Heroku
Sentry
PayPal
WhiteNoise

What We Believe In

Transparency Over Restriction

We show you your financial reality — we don't restrict spending or impose budgets. Knowledge empowers better decisions.

Security First

Multi-tenant isolation, encrypted credentials, brute force protection, and strict HTTPS enforcement. Your data stays yours.

Built for Households

Finances aren't solo. CashFlow supports shared access with role-based permissions — perfect for couples, families, and advisors.

Automation Where It Matters

Recurring rules, automatic balance recalculation, and signal-driven updates mean less manual work and fewer errors.

Global by Default

27 currencies, automatic exchange rate conversion, and timezone-aware design. Manage finances across borders.

Always Improving

Bank sync, scenario simulation, Monte Carlo analysis, and a full REST API are on the roadmap. We build what you need.

12

Django Apps

20

Data Models

346

Automated Tests

91%

Code Coverage

Ready to Get Started?

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