TDanelfin vs TrendSpider
Pricing, features, platforms and who each one suits — side by side.
Choose Danelfin 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, active traders
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
Key features
D Danelfin
- AI Score from 1 to 10 for stocks and ETFs
- Buy, Hold and Sell ratings
- Stock and ETF rankings
- Portfolio tracking with AI scores
- Explanations of the alpha signals behind each score
- Trading parameters and short trade ideas on higher tiers
- CSV export of scores and indicators
- REST API and MCP server with data since 2017
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.
Danelfin
TrendSpider
Strengths and limitations
Danelfin
- Free plan includes 10 stock/ETF reports a month
- Annual and two-year billing cost less than monthly
- API with history back to 2017
- Scores give a plain Buy/Hold/Sell rating
- Trading parameters require the Pro plan or higher
- API plans are priced separately from website plans
- Free plan limited to one portfolio of five holdings
- No mobile apps found on the vendor pages
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
T

Charting, screening and market data platform for traders and investors
KMarket research, portfolio analytics and client reports for investors and advisors

Market research, portfolio analytics and client reports for investors and advisors
T
Real-time AI stock scanner with Holly AI trade signals for active traders
AI stock research terminal and financial data API for investors
Stock research, analyst articles, quant ratings and market news for investors
A

AI market intelligence across filings, broker research and expert calls
Built from each vendor's public website; we haven't tested them hands-on. Editorial policy