T
TComposer vs TrendSpider
Pricing, features, platforms and who each one suits — side by side.
C
Choose Composer if…
- you want a free plan to start with
- you need an API to build on
- you're in its core audience: self-directed retail investors, algorithmic trading hobbyists
T
Choose TrendSpider if…
- you want to trial it before paying
- you work on iOS, Android, Chrome
- you're in its core audience: active traders, swing and intraday traders
Side by side
Feature Composer TrendSpider
Pricing modelFreemiumFree trial
Starting price$10/mo—
Free plan
Free trial
API
Open source
PlatformsWeb, APIWeb, iOS, Android, Chrome
CategoryAI Investing & Stock ResearchAI Investing & Stock Research
CompanyComposerTrendSpider
Based in——
Founded2020—
Part of——
Key features
C Composer
- AI strategy creation from natural-language prompts
- Visual no-code strategy editor with conditional logic
- Backtesting against benchmarks, including fees and slippage
- Automated trade execution and rebalancing
- Pre-built strategy library
- Community publishing and remixing of strategies
- Traditional and Roth IRA support
- API for data, backtests and trading (Pro)
T TrendSpider
- Automated chart pattern recognition
- 200+ built-in technical and fundamental indicators
- No-code strategy backtesting on 50+ years of data
- Market scanners and watch lists
- Cloud alerts and no-code trading bots
- ML Strategy Lab for predictive models
- Sidekick AI assistant for charts and filings
- Custom indicators in JavaScript or generated with AI
Plans and prices
From each vendor's site. Prices change — confirm before buying.
Composer
Starter$0
Advanced$10/mo
Pro$32/mo billed yearly ($384/year)
BusinessCustom
TrendSpider
Standard$51.30/mo (sale price; regular range shown $56.05–$84.55/mo)
Premium$52.78/mo (sale price; regular range shown $57.42–$126.65/mo)
Enhanced$67.10/mo (sale price; regular range shown $73.15–$169.15/mo)
Advanced$111.28/mo (sale price; regular range shown $121.16–$296.65/mo)
Strengths and limitations
Composer
- Free Starter plan includes unlimited building and backtesting
- No commissions or management fees advertised
- Pro plan includes API access
- IRA accounts supported
- Free plan automates only one strategy
- API access requires the Pro or Business plan
- Regulatory fees from FINRA and the SEC still apply
- Business pricing requires a sales call
TrendSpider
- Every plan includes the same features and market data access
- 14-day trial available for $19
- iOS and Android apps plus a Chrome extension
- No-code backtesting and trading bots
- No free plan; the trial costs $19 and is non-refundable
- Sidekick is limited to 25 messages on every plan
- No public API is documented
More comparisons
Other options to consider
TT
Freemium
T
Charting, screening and market data platform for traders and investors
AI Investing & Stock ResearchFree plan
S
S
Freemium
S
Stock research, analyst articles, quant ratings and market news for investors
AI Investing & Stock ResearchFree plan
A
AA
Contact
A
AI market intelligence across filings, broker research and expert calls
AI Investing & Stock Research
K
KMarket research, portfolio analytics and client reports for investors and advisors
Free, from $39/mo
K
Free, from $39/mo
K
Market research, portfolio analytics and client reports for investors and advisors
AI Investing & Stock ResearchFree plan
S
S
Freemium
S
Visual stock research, screeners and portfolio tracking for retail investors
AI Investing & Stock ResearchFree plan
T
TT
From $89/mo
T
Real-time AI stock scanner with Holly AI trade signals for active traders
AI Investing & Stock Research
Built from each vendor's public website; we haven't tested them hands-on. Editorial policy