Tangent brings your bank accounts, investments and loans together in one clear dashboard — and gives you the tools to analyse your allocation, simulate scenarios, and measure your performance over time.
Open the app →Connect your banks through Powens (authorised by the ACPR, the French banking supervisor) or Enable Banking (PSD2). Your accounts, investments and loans update automatically.
Allocation, correlations, efficient frontier, Sharpe ratio, drawdown. Understand where your money is working.
Simulate how your wealth evolves over 10, 20 or 30 years under different return and inflation assumptions.
Measure the impact of extreme scenarios (crash, inflation shock, rate rise) on your current allocation.
Track your PEA, CTO (ordinary securities account), livrets (regulated savings accounts), current accounts and manually entered non-bank assets together.
Self-hosted, sensitive tokens encrypted at rest, strict isolation between users. No ads, no tracking.
The same app, on the App Store: same account, same data, locked with Face ID. Sign in with Google or Apple.
Backend Python 3.12 / FastAPI / PostgreSQL 16. Frontend React 18 / TypeScript / Vite. Self-hosted with Docker Compose, Caddy and Cloudflare Tunnel. Bank aggregation by Powens and Enable Banking (PSD2). iPhone app built with Capacitor. Transactional emails via Resend.
Tangent is a personal analysis tool. It does not constitute regulated investment advice within the meaning of article L. 541-1 of the Code monétaire et financier (the French Monetary and Financial Code). Analyses and projections are indicative — every investment decision is yours. See the Terms of Service for details.