Signae: investor app with signals and AI

Signae is an app for retail investors who have no time to watch the market. It brings stocks and crypto into one portfolio, keeps an eye on charts, bloggers and big players, and speaks up only when something matters — in plain words.

One portfolio
The Bybit, Binance and Coinbase exchanges, a Revolut brokerage account and wallets on 10 networks — Bitcoin, Ethereum, Solana, Tron, Base, BNB Chain and more, so Ledger, Trezor, MetaMask, Tangem and any other wallet. Total returns in euros, a heatmap and a public portfolio link.

Signals with honest statistics
Chart patterns, candlestick patterns, indicators and swing setups on stocks and crypto. Every signal shows how often it worked on history and a 0–100 score for what confirms it; swing trades come with an entry, a stop and a target. Lite mode gives one clear sentence, Pro gives candles and numbers.

Bloggers
AI watches new videos from crypto and stock bloggers on YouTube, summarises them and picks out their calls. The calls are checked against prices, so every blogger gets a hit rate.

Smart money and whales
Portfolios of Buffett, Dalio, Cathie Wood and other famous investors, executives buying their own stock, US Congress trades and whale wallet tracking.

AI assistant, risk and taxes
An AI assistant built on Claude reviews the portfolio and builds a new one for a goal. Stops and take-profits, a stress test, virtual portfolios and a top-up plan. Tax reports for Spain, Portugal and Germany.

Wherever it suits you
iOS and Android, Apple Watch and Wear OS, a Telegram bot with a mini app, and a web account. Four interface languages.

What we built
The mobile and watch apps on Flutter and watchOS, the API on NestJS with PostgreSQL and Redis, the website and web account on Next.js, and CI/CD in GitLab.