ChartMill vs TrendSpider
A detailed comparison to help you choose the right tool in 2026.
ChartMill
Filter-rich stock screener with automated chart pattern recognition across US and European markets
Free plan available
TrendSpider
AI-powered automated technical analysis and charting platform
From $89/month
Feature Comparison
| Feature | ChartMill | TrendSpider |
|---|---|---|
| Advanced charting | ✗ | ✓ |
| Technical indicators | ✓ | ✓ |
| Drawing tools | ✓ | ✓ |
| Multi-chart layouts | ✗ | ✓ |
| Real-time data | ✗ | ✓ |
| Custom scripts/code | ✗ | ✗ |
| Social/community features | ✗ | ✗ |
| Paper trading | ✗ | ✗ |
| Mobile app | ✗ | ✓ |
| Starting Price | Free | $89/month |
ChartMill Pros & Cons
Pros
- + Most screening filters among affordable screeners (238 lab-tested criteria)
- + Covers US, Canadian, and European markets — rare at this price point
- + Proprietary Setup Rating and Trend Indicator are genuinely unique
- + 29 chart patterns and 30 candlestick patterns scanned automatically
- + 260+ pre-built screens covering value, growth, momentum, and swing strategies
- + Credit-based free tier is genuinely usable for casual screening
Cons
- − No real-time data on any plan — 15-minute delay for all users
- − Charting is basic compared to TradingView (85 indicators, no scripting)
- − No mobile app for iOS or Android
- − Cannot save chart annotations
- − No integrated trading functionality
- − Customer support response times are slow
TrendSpider Pros & Cons
Pros
- + Automated trendline detection saves hours of manual work
- + Multi-timeframe analysis on a single chart is unique
- + No-code backtesting is accessible to non-programmers
- + Raindrop charts provide unique volume-price insight
- + Clean, modern UI
Cons
- − No free tier — starts at $89/month
- − Web-only — no native desktop app
- − Learning curve for automated features
- − Limited broker integrations
- − Charting customization not as deep as TradingView
Our Take
ChartMill: ChartMill is the most filter-rich affordable stock screener available, with over 180 filters, 29 chart patterns, 30 candlestick patterns, and proprietary ratings that no competitor replicates. Its coverage of European markets alongside North American exchanges makes it uniquely valuable for traders who operate across both regions. Charting is its weak spot — pair it with TradingView for deep chart analysis. If you trade patterns and want automated setup detection at a fair price, ChartMill deserves a place in your workflow.
TrendSpider: TrendSpider is the strongest option for traders who want AI and automation to handle the mechanical side of technical analysis. Its automated trendlines, no-code backtesting, and multi-timeframe overlays are genuinely best-in-class. The trade-off is premium pricing and a real learning curve — but for swing traders and systematic analysts willing to invest in both, the time savings and analytical rigor justify the cost.
Pricing Comparison
ChartMill Pricing
ChartMill's pricing structure is notably flexible. The free tier provides 6,000 credits per month — enough for roughly 80 screener runs or 12 analyzer reports — with unused credits rolling over up to a maximum of 60,000. Casual screeners who run a few scans per week may never need to pay. When credits run short, a top-up of 10,000 credits costs 10 dollars. The monthly subscription removes all credit limits at 34.97 dollars per month, while the annual plan brings the effective rate to roughly 25 dollars per month at 299.97 dollars per year — a 29 percent savings. An introductory offer of 13.97 dollars for the first month lowers the barrier further. Compared to Finviz Elite at 39.50 dollars monthly or Trade Ideas at over 150 dollars, ChartMill delivers more screening filters and European coverage at a lower price point. The trade-off is the lack of real-time data, which Finviz Elite provides.
TrendSpider Pricing
TrendSpider offers four tiers: Standard ($89/month), Premium ($149/month), Enhanced ($199/month), and Advanced ($349/month). Annual billing reduces costs by roughly 33%. All plans include full platform access, 300+ indicators, backtesting, AI Strategy Lab, trading bots, Sidekick AI, and real-time data for equities, forex, and crypto. Tiers differ primarily in workspace count, bot limits, alert duration, and training sessions. Optional add-ons include real-time futures data ($7.50/month) and enhanced backtest depth ($39/month). There is no free tier; the 14-day trial requires upfront payment. TrendSpider runs aggressive seasonal sales — up to 70% off annual plans during Black Friday and holidays. Compared to TradingView ($33.95/month entry) and MetaTrader (free), TrendSpider sits at the premium end of the market.
What Users Say
ChartMill
User sentiment toward ChartMill is positive but quiet — the platform has a smaller public footprint than competitors like Finviz or TradingView. Across blog reviews, it consistently earns ratings between 3.8 and 4.2 out of 5, with praise centered on screening versatility, the proprietary Setup Rating, and the breadth of pre-built screens. On Trustpilot, ChartMill holds a 3.4 score from seven reviews. One reviewer called it "by far the best filter from my experience," comparing it favorably to BarCharts and Finviz. Another described it as "a great research tool for swing traders." The negative feedback clusters around pricing relative to the lack of real-time data and limited API access — one reviewer noted the platform was "technically limited (no Excel API)" for their needs. The small review sample reflects lower brand awareness rather than poor satisfaction, and the absence of any one-star reviews on Trustpilot suggests the platform delivers on its core promise for those who discover it.
TrendSpider
User sentiment across 650+ Trustpilot reviews (4.7/5) and multiple review platforms skews strongly positive. The most consistent praise targets customer support — one Trustpilot reviewer called it "the only thing more impressive than the tool itself." Automated trendline detection and backtesting draw frequent commendation, with one reviewer describing TrendSpider as "a breath of fresh air — straightforward and packed with integrated features." Criticism centers on pricing — one user called it "extremely high for not being able to do anything sophisticated" — and scanner limitations, with another noting the scanner "doesn't auto-refresh." The learning curve appears in roughly one-third of reviews, though most frame it as a temporary hurdle rather than a dealbreaker. Across professional review sites, scores range from 4.0 to 4.8 out of 5.
Choose ChartMill if...
- → Swing traders and pattern-focused investors who screen US and European stocks
- → ChartMill is built for swing traders and position traders who screen stocks regularly and want a tool that goes beyond basic filtering. If you trade chart patterns — breakouts, pullbacks, consolidation setups — the proprietary Setup Rating alone justifies exploring the platform. Value investors will appreciate the Piotroski scores, ROIC variants, and sector-relative percentile rankings that put companies in context against their industry peers. Growth and momentum traders benefit from the pre-built screens modeled on strategies from William O'Neil, Peter Lynch, and Mark Minervini. European traders gain a meaningful advantage here, as ChartMill covers Euronext, Xetra, and the LSE — markets that Finviz ignores entirely. Casual screeners who run only a few scans per week can use the platform effectively without paying, thanks to the 6,000 monthly credit allowance.
Choose TrendSpider if...
- → Active traders who want automated technical analysis
- → TrendSpider is built for traders who want technology to handle the repetitive parts of technical analysis. Swing traders working multi-day timeframes get the most value — the automated trendlines, multi-timeframe overlays, and no-code backtesting align directly with that workflow. Data-driven traders who rigorously test strategies before deploying capital will appreciate the Strategy Tester and AI Strategy Lab. Part-time traders who cannot monitor charts all day benefit from the cloud-based alerts and automated scanning. Options traders will find the integrated IV data, strike analysis, and options flow useful. Even newer traders who want automated trendlines as a learning aid can benefit, provided they are willing to invest time in the learning curve.
Frequently Asked Questions
What is the main difference between ChartMill and TrendSpider?
ChartMill is best known for: Filter-rich stock screener with automated chart pattern recognition across US and European markets. TrendSpider focuses on: AI-powered automated technical analysis and charting platform.
Which is cheaper, ChartMill or TrendSpider?
ChartMill offers a free tier. TrendSpider starts at $89/month.
Can I use ChartMill and TrendSpider together?
Yes, many traders use both tools as they serve complementary purposes. ChartMill excels at stock screener with 180+ technical and fundamental filters, while TrendSpider is strong in ai-automated trendline detection and drawing.