Composer may fit when
- You want one account at Composer to build, backtest, and live-trade US stocks and ETFs.
- A no-code symphony canvas and in-product AI assist are the daily workflow.
- Opening an in-product brokerage account is acceptable.
People searching for a Composer alternative often want no-code systematic trading without moving into Composer's broker-dealer. Composer builds and lives trades inside its own account. Investfly hosts visual and Python strategies and connects eligible external brokers—covering stocks, options structures, spot crypto, futures, and forex. Investfly is not affiliated with Composer.
Composer is a no-code symphony builder with live trading in an in-product brokerage account. Investfly is not a broker-dealer. You authorize Tradier, tastytrade, Alpaca, Oanda, or Coinbase separately. That split lets the same strategy model include listed-option structures, futures, forex, and spot crypto—not only US stocks and ETFs.
| Job | Investfly | Composer |
|---|---|---|
| Primary product | Hosted strategy software. Funds stay at an eligible connected broker or in a virtual portfolio. | No-code symphony builder plus in-product brokerage. |
| Authoring | Visual builder plus a bounded Python SDK. | No-code symphonies and in-product AI assist, as Composer publishes them. |
| Testing | Historical backtests and virtual portfolios. | Build and backtest inside Composer before live trading in that brokerage account. |
| Live path | You authorize an eligible external broker. Investfly does not custody the account. | Live trading happens in the Composer brokerage account. |
| Markets | Stocks/ETFs, options structures, spot crypto, futures, and forex. | US stocks and ETFs, with a narrower options surface inside that brokerage product. |
Yes, when the job is no-code systematic trading plus a path to other asset classes and external brokers. Composer remains the in-product broker-dealer and symphony canvas.
No. Live trading uses an eligible connected account. Paper and virtual portfolios do not require a broker.
Investfly's options builder uses contract, leg, DTE, strike, spread, and group-lifecycle controls. Covered calls can be expressed as supported option structures when those controls allow it.
Reviewed October 14, 2026 against Composer What’s New and brokerage disclosures. Competitor facts are documentation-based; we did not test a signed-in competitor account. Investfly evidence uses actual product screens and public rule snapshots. Plans, providers and instrument eligibility can change.
This five-minute stock example uses an indicator condition, equity-based sizing, staged exits and later trailing protection. Scheduled baskets and allocation rules are also available; use Python when your authored rule needs supported logic beyond the visual controls.
Inspect SMA CrossOver, use Customize to save a private draft, and review every setting before running it.
| Reported historical period | Matched closed-trade records | Last completed run |
|---|---|---|
| 2026-09-03 to 2026-10-09 | 15 | 2026-10-10 |
Historical simulation, not live performance. Partial closes may create multiple matched records. The run uses available history; its dates can change as data refreshes. Inspect costs, fills, missing data and warnings in the full report. These settings demonstrate software behavior, not a recommended strategy.
Composer by SoFi publishes no-code symphonies, AI assistance, backtests and execution through its brokerage service. Its December 2025 release added covered calls and cash-secured puts; crypto support ended January 31, 2026.
Investfly does not import symphonies or provide Composer’s AI authoring service. Its bounded Python SDK is a separate API. An eligible external broker, approved instruments and Elite are needed for live execution.
To evaluate the Investfly route, review plan limits and total cost, data and fill assumptions, and virtual deployment and monitoring. Premium/Elite supply continued backtesting and automation; Elite supplies live broker connections.