TrendSpider
TrendSpider automates the charting, scanning, backtesting, and trade execution workflows that typically consume hours of a trader's day.
The technical analysis platform built for traders who want AI to do the repetitive chart work.
TrendSpider is a cloud-based technical analysis and market research platform founded in 2016 in Chicago. It was built specifically to automate the charting tasks that active traders spend hours doing manually — drawing trendlines, identifying support and resistance zones, running multi-timeframe scans, and testing strategies against historical data. The platform covers over 65,000 assets, including US stocks, ETFs, forex pairs, futures contracts, cryptocurrencies, and major indices.
Its standout capability is automated trendline detection, which can draw up to 2,000 trendlines per chart across multiple timeframes simultaneously, removing the bias and time investment of doing it by hand. Alongside this, the platform includes 190+ built-in indicators, AI-powered pattern and candlestick recognition, a no-code backtesting engine with 50 years of historical data, no-code Strategy Bots for automated trading, and the Sidekick AI assistant for real-time chart analysis and indicator building.
TrendSpider is available on web, iOS, Android, and as a Chrome extension. It has built up a strong reputation among systematic swing traders and intraday traders, with over 20,000 customers and a 4.8 Trustpilot rating from more than 650 verified reviews. Plans start from $59 per month billed annually and there is no free tier, though a discounted trial is available.
Apps are frequently updated and may change over time. While we aim to keep our reviews accurate and up to date, some information may become outdated or no longer reflect the current version.
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How to Use
TrendSpider requires no download and runs entirely in a browser, with companion iOS and Android apps for mobile access. After subscribing and logging in, most traders begin by setting up their watchlists and configuring chart layouts. The multi-timeframe chart view is the platform's starting point — it overlays trend data from higher timeframes directly onto lower timeframe charts, giving traders context they would normally have to switch windows to find.
The automated trendline engine runs continuously, drawing support and resistance lines, Fibonacci retracements, and dynamic trendlines across each chart as price evolves. Traders can set alerts that fire the moment price interacts with any of these levels, eliminating the need to watch screens manually. The Market Scanner applies any combination of technical and fundamental conditions across all covered assets simultaneously, surfacing setups that match a trader's specific criteria in real time.
Strategy testing is handled by the no-code backtesting engine, where traders define entry and exit conditions using a visual condition builder and run them against up to 50 years of historical data. Strategies that perform well in backtesting can be converted into Strategy Bots that execute trades automatically via connected brokers through the SignalStack integration. No programming is needed at any stage.
The Sidekick AI assistant provides real-time chart commentary, answers questions about setups, and can write custom indicators from natural language descriptions. Sidekick Agentic Coding, added in April 2026, goes a step further by running the indicator on a live chart and iterating automatically until the output matches the requested behaviour.
Strongest Points:
✓ Automated trendline detection draws up to 2,000 lines per chart across multiple timeframes, saving hours of manual charting work
✓ No-code backtesting engine with 50 years of historical data lets traders validate strategies without any programming knowledge
✓ Strategy Bots can automate trade execution based on backtested strategies via broker integration, requiring no coding
✓ Sidekick AI assistant provides real-time chart analysis and can write custom indicators from plain-language descriptions
✓ Covers 65,000+ assets across stocks, ETFs, forex, futures, crypto, and indices with cloud-based access on web and mobile
Weaker Points:
✕ Steep learning curve — most users report needing two to four weeks before feeling comfortable with the full feature set
✕ No free plan available, and the pricing is among the higher end of technical analysis tools on the market
✕ Sidekick AI includes only 25 free messages per month — active users will likely need a paid Sidekick add-on
✕ Backtesting candle depth varies significantly by plan tier, which affects the quality of intraday strategy testing on lower plans
✕ Chart and alert interfaces can feel unintuitive compared to simpler charting platforms, particularly for less experienced traders
How to Use
TrendSpider requires no download and runs entirely in a browser, with companion iOS and Android apps for mobile access. After subscribing and logging in, most traders begin by setting up their watchlists and configuring chart layouts. The multi-timeframe chart view is the platform's starting point — it overlays trend data from higher timeframes directly onto lower timeframe charts, giving traders context they would normally have to switch windows to find.
The automated trendline engine runs continuously, drawing support and resistance lines, Fibonacci retracements, and dynamic trendlines across each chart as price evolves. Traders can set alerts that fire the moment price interacts with any of these levels, eliminating the need to watch screens manually. The Market Scanner applies any combination of technical and fundamental conditions across all covered assets simultaneously, surfacing setups that match a trader's specific criteria in real time.
Strategy testing is handled by the no-code backtesting engine, where traders define entry and exit conditions using a visual condition builder and run them against up to 50 years of historical data. Strategies that perform well in backtesting can be converted into Strategy Bots that execute trades automatically via connected brokers through the SignalStack integration. No programming is needed at any stage.
The Sidekick AI assistant provides real-time chart commentary, answers questions about setups, and can write custom indicators from natural language descriptions. Sidekick Agentic Coding, added in April 2026, goes a step further by running the indicator on a live chart and iterating automatically until the output matches the requested behaviour.
Strongest Points:
✓ Automated trendline detection draws up to 2,000 lines per chart across multiple timeframes, saving hours of manual charting work
✓ No-code backtesting engine with 50 years of historical data lets traders validate strategies without any programming knowledge
✓ Strategy Bots can automate trade execution based on backtested strategies via broker integration, requiring no coding
✓ Sidekick AI assistant provides real-time chart analysis and can write custom indicators from plain-language descriptions
✓ Covers 65,000+ assets across stocks, ETFs, forex, futures, crypto, and indices with cloud-based access on web and mobile
Weaker Points:
✕ Steep learning curve — most users report needing two to four weeks before feeling comfortable with the full feature set
✕ No free plan available, and the pricing is among the higher end of technical analysis tools on the market
✕ Sidekick AI includes only 25 free messages per month — active users will likely need a paid Sidekick add-on
✕ Backtesting candle depth varies significantly by plan tier, which affects the quality of intraday strategy testing on lower plans
✕ Chart and alert interfaces can feel unintuitive compared to simpler charting platforms, particularly for less experienced traders
Use it For:
📊 Active swing and intraday traders who want to automate their charting and scanning workflow to save time and reduce bias.
🤖 Systematic traders who want to build, backtest, and automate trading strategies without writing any code.
🔍 Technical analysts who work across multiple timeframes and need a cleaner way to identify structure and key levels quickly.
🏦 Traders who want to incorporate alternative data — dark pool volume, options flow, insider activity, and Congress trades — into their technical setups.
💻 Algorithmic and semi-automated traders looking for a no-code route into bot-driven execution without building infrastructure from scratch.
App Usable on:
Phone
Tablet
PC
TV
Applications and Features
TrendSpider's most distinctive feature is its automated trendline detection engine, which processes a chart and draws support and resistance lines, Fibonacci retracements, and multi-timeframe trendlines automatically. Up to 2,000 trendlines can be drawn per chart, and dynamic alerts fire when price interacts with any of them. This removes two of the most time-consuming and subjective parts of manual chart analysis.
Multi-Timeframe Analysis overlays trend data from longer timeframes directly onto shorter timeframe charts, giving traders contextual structure without switching between chart windows. Raindrop Charts are a proprietary chart type unique to TrendSpider that combines price, volume, and time into a single visual, offering a different perspective on market structure compared to traditional candlestick charts.
The AI Strategy Lab lets traders train custom machine learning models for specific markets, timeframes, and strategies without any coding. Trained models can then feed into the backtesting engine and Strategy Bots. The Market Scanner screens across all covered assets in real time using any combination of technical conditions, fundamental data, dark pool volume, options flow, insider activity, and Congressional trade disclosures.
Sidekick, the platform's AI assistant, provides natural language chart analysis, writes and debugs custom indicators, and since April 2026, uses agentic coding to run and iterate on indicators live until they match a trader's exact specification. A community store of pre-built strategies and indicators is available across all plans.
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App Summary
TrendSpider is one of the most complete technical analysis platforms currently available to retail traders, and the 2026 version is meaningfully more capable than what reviewers described just two years ago. The automated trendlines, no-code backtesting, Strategy Bots, and Sidekick AI work together as a coherent system rather than a collection of disconnected tools — and for traders who invest the time to set it up properly, the time savings are real and substantial.
It is most effective for experienced swing and intraday traders with a systematic approach and a willingness to spend two to four weeks learning the platform before expecting results. Complete beginners will find it overwhelming and would be better served starting elsewhere. The price point is also genuinely high — it requires a level of trading activity to justify the cost.
The key limitations to keep in mind are the no free tier, the Sidekick message cap, the variable backtesting depth across plan tiers, and the fact that broker execution requires the additional SignalStack integration. None of these are dealbreakers for the target user, but they are real considerations before committing to a subscription.
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TrendSpider has no free plan. The Standard plan starts at $89 per month ($59 per month billed annually) and the most popular Premium plan is $149 per month ($99 per month billed annually). A discounted 14-day trial is available on request. Sidekick AI includes 25 free messages per month; heavier usage requires a paid add-on. New customers receive up to 32% off their first payment depending on plan and billing cycle.
Learning Difficulty:
The platform is feature-dense and multi-layered, with most users reporting a two-to-four-week adjustment period before they can navigate the charting, scanning, and backtesting tools with confidence — prior experience with technical analysis significantly shortens that curve.
Required Skill Sets:
Educational Content:
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Questions & Answers: ⮛ (click to open)
Is TrendSpider suitable for beginner traders?
TrendSpider is primarily built for experienced traders. The depth of features and the complexity of the interface mean most users report needing two to four weeks before they feel comfortable navigating it confidently. That said, automated trendlines can help newer traders learn technical analysis by showing them levels they might not have spotted manually.
Can TrendSpider execute trades automatically?
Yes. Strategy Bots can execute trades automatically via connected brokers through TrendSpider's SignalStack integration. Bots are built from backtested strategies using a no-code condition builder, and no programming knowledge is required to set them up or run them.
What is the difference between the Standard and Premium plans?
Both plans include access to the core toolset. Premium adds advanced scanning features, deeper backtesting candle history, multi-chart layouts, and proprietary tools including Raindrop Charts and market heatmaps. The Standard plan starts at $89 per month ($59 annually) and Premium at $149 per month ($99 annually).
What is Sidekick and how does it work?
Sidekick is TrendSpider's AI assistant. It provides real-time chart analysis, answers questions about trading setups, and can write custom indicators from natural language descriptions. Since April 2026, it uses agentic coding to run indicators live and iterate automatically until the output matches what the trader requested. All plans include 25 free Sidekick messages per month.
Good to Knows: ⮛ (click to open)
• TrendSpider's community store contains pre-built strategies and indicators contributed by other users, many of which are free and cover well-known frameworks from traders like Mark Minervini, Peter Lynch, and William O'Neil.
• Sidekick AI displays its chain-of-thought reasoning by default, so traders can see the logic behind any analysis rather than receiving a conclusion without explanation.
• The platform added real-time US options data in March 2026, including an Options Chain view and an Options Map heatmap showing Greeks, implied volatility, open interest, and volume across all expirations and strikes.
Takeaways: ⮛ (click to open)
• TrendSpider earns its reputation as one of the most automation-capable technical analysis platforms available — the combination of no-code backtesting, Strategy Bots, and Sidekick AI puts serious systematic trading tools within reach of traders who cannot code.
• The steep learning curve and high price point are the two main barriers — both are real, and traders who underestimate the onboarding time or overestimate their trading frequency are unlikely to get full value from the subscription.
• For systematic traders already spending hours a week on manual chart work, TrendSpider can meaningfully reduce that workload and add a layer of discipline and repeatability that manual analysis alone cannot easily provide.
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