It's free. All of it.

No catch. Every feature — footprint, heatmap, DOM, 24/7 cloud alerts, scripting, backtesting, multi-account, export — is free for everyone, forever. No trial timer, no locked 'Pro', no per-symbol fees. Spectra is funded by optional donations, not subscriptions.

By optional community donations. If Spectra earns a place on your screen, you can buy the founder a coffee with crypto (BTC, ETH, or USDT) on the Support page. Donating is entirely optional and unlocks nothing extra — everything is already free.

No card, ever. Download the desktop app or open the web app and start charting. A free account is only needed to sync workspaces across devices and run 24/7 cloud alerts — no payment details anywhere.

The plan is to keep every feature free. If running costs ever forced a change, existing users would be grandfathered and told well in advance — and donations exist precisely so it doesn't come to that.

Of course — give once, monthly, or never; it's entirely up to you. Donations are gifts that fund data and servers, not purchases, so there's nothing to cancel. Thank you for whatever you can give.

Yes. Spectra ships signed native desktop apps for macOS (Intel and Apple Silicon), Windows 10/11, and Linux. The native apps are GPU-accelerated, low-memory, and auto-update. No Electron, no bloated runtime — it feels like a real trading terminal.

Yes. Spectra runs in any modern browser on iPhone, Android phones, iPad, and Android tablets. The web app is touch-optimised — smooth scrolling, pinch-to-zoom, mobile keyboards for inputs — and uses the same charting engine as the desktop. Your workspaces sync across devices when you sign in.

The major retail platforms charge $30 to $60/month for a subset of what Spectra does, plus another $25/symbol/month for data — and desktop order-flow suites run $1,499/year. Spectra includes footprint charts, order-book heatmap, DOM ladder, 24/7 cloud alerts, and scripted strategies for free — no per-symbol fees, no watermarks, no "premium real-time" upsell.

All three. Stocks and ETFs via Twelvedata and Tiingo. Crypto via Binance (spot and futures) and other major exchanges. Forex via Twelvedata. Live tick streaming, full historical bars, and order routing where the broker supports it.

Yes — full footprint charts with bid/ask volume, delta, imbalance highlighting, and value-area shading. Included free, on every supported instrument, on every platform (desktop and web).

Yes. The DOM ladder shows live bid/ask depth with one-click order entry. The order-book heatmap visualises resting liquidity over time so you can see absorption and large-size walls before they hit the tape. Both are free, both run native-fast.

Yes — composite volume profile, session volume profile, and Market Profile / TPO charts are all built in. Configurable POC, value-area percentage, and profile mode (per-session vs. composite).

Yes. Spectra ships a sandboxed scripting DSL for custom indicators, alerts, and strategies. No C# or Pine required — strategies compile to the same bytecode that powers our backtester and 24/7 cloud worker. No "unsafe" paths, no file or network access outside audited built-ins.

Yes. Price-level alerts, indicator alerts, drawing-cross alerts, and full custom-DSL strategy alerts all run on our cloud worker 24/7 — free. Delivery via email, webhook, Telegram, Discord, or push. No "alert credit" pricing — fire as many as you want.

Auto-orders ship with Binance support (spot + futures) today. Tradovate, Interactive Brokers, and Alpaca are on the roadmap. Webhook-based broker integrations work today for any platform that accepts signed HTTP.

Yes to both. Paper trading models slippage in basis points, commission per fill, partial fills, and gap-handling. Backtests use the exact same engine as live trading — you don't get one result on paper and a different one in production.

Spectra runs comfortably on an 8 GB laptop with Chrome, Slack, and your editor open. No Electron, no Java, no bloated runtime. The native app hits 144 fps on 50,000 candles on a base-model M2 MacBook Air, and runs smoothly on older Windows laptops where browser-based charting tools start dropping frames.

Only if you opt in for 24/7 cloud alerts and auto-orders. Otherwise the desktop runs them locally and nothing leaves your machine.

Yes — live trading is off by default. Flipping to live requires a typed-phrase confirmation; auto-orders need a separate 2FA acknowledgement per broker secret. Paper trading is the default mode.

Supabase (EU region by default; US optional). Encrypted at rest. Webhook secrets are sealed in the database. Your workspaces, scripts, and trade history belong to you and export as JSON anytime.

Self-host: not yet — the cloud backend is closed-source. The desktop app works fully offline if you skip cloud sync. Account delete: Profile → Delete account removes every owned row and your identity itself (GDPR-compliant).