ChartMill vs thinkorswim Scanner (2026) — Which Is Better?
Compare ChartMill and thinkorswim Scanner — features, pricing, pros and cons.
Data below reflects each vendor's official docs at time of writing. Pricing, features, and account terms can change; check the source of truth on each provider's site. Methodology →
The Short Version
Higher Rated
thinkorswim Scanner (4.4)
More Affordable
ChartMill (Free)
ChartMill
ChartMill is a Belgium-based stock screener with 180+ filters, proprietary trend and value indicators, and 263 pre-built strategies for US, Canadian, and European markets.
thinkorswim Scanner
Free professional-grade stock and options scanner bundled with Charles Schwab accounts, featuring ThinkScript customization, 400+ indicators, and real-time multi-market scanning.
Screener Head-to-Head
ChartMill and thinkorswim Scanner serve fundamentally different traders. ChartMill emphasizes accessibility with 180+ filters, 263 pre-built strategies, and proprietary indicators (Value, Trend, Weinstein) that simplify stock discovery. Its coverage spans US, Canadian, and European markets—rare among screeners. thinkorswim Scanner prioritizes depth, offering 400+ indicators, ThinkScript scripting language, and unlimited scan conditions. Both cost nothing, though thinkorswim requires a Schwab account.
The critical trade-off: real-time data versus simplicity. ChartMill's 15-minute data delay disqualifies day traders but suits swing traders who appreciate its international reach and affordability. thinkorswim delivers real-time scanning plus unmatched options tools (Option Hacker, Spread Hacker, Sizzle Index)—a free powerhouse for Schwab account holders trading derivatives.
Pick ChartMill if you're a beginner, trade internationally, or want ready-made strategies. Choose thinkorswim if you bank with Schwab, trade options actively, or build custom scans via ThinkScript. Day traders gravitate toward thinkorswim's real-time data; swing traders often find ChartMill's simplicity and international coverage compelling. The choice hinges on your brokerage relationship and trading frequency.
Filter & Data Feature Breakdown
| Feature | ChartMill | thinkorswim Scanner |
|---|---|---|
| Rating | ★ 4.2 | ★ 4.4 |
| Starting Price | Free | Free |
| Free Tier | Yes | Yes |
| Markets | stocks, etfs | stocks, etfs, options, futures, forex, crypto |
| AI Analysis | ✗ | ✗ |
| Backtesting | ✓ | ✓ |
| Paper Trading | ✗ | ✓ |
| Price Alerts | ✓ | ✓ |
| Mobile App | ✗ | ✓ |
| API Access | ✗ | ✗ |
| Social Features | ✗ | ✗ |
| Broker Integration | ✗ | ✓ |
| Custom Indicators | ✗ | ✓ |
| Automated Trading | ✗ | ✗ |
| Trade Journaling | ✗ | ✗ |
| Performance Analytics | ✓ | ✓ |
| Risk Management | ✗ | ✓ |
| News Feed | ✓ | ✓ |
| Education Content | ✓ | ✓ |
ChartMill: Pros & Cons
Pros
- + 180+ filters combining technical, fundamental, and descriptive criteria in one screener
- + 263 pre-built Trading Ideas strategies make onboarding easy for beginners
- + Proprietary Value, Trend, and Weinstein indicators offer unique stock rating systems
- + Covers US, Canadian, and European markets — rare among stock screeners
- + Affordable pricing with a generous free tier for exploratory use
Cons
- - 15-minute data delay on all plans makes it unsuitable for day trading
- - Charting and drawing tools are basic compared to TradingView or TC2000
- - Stocks and ETFs only — no forex, crypto, futures, or options support
- - Backtesting is limited and not suitable for systematic strategy development
thinkorswim Scanner: Pros & Cons
Pros
- + Completely free with any Schwab account — no subscription, no platform fees, no data fees
- + Best-in-class options scanning with Option Hacker, Spread Hacker, and Sizzle Index
- + ThinkScript scripting language allows unlimited custom scan logic beyond preset filters
- + 400+ technical indicators and 30+ fundamental filters with up to 25 conditions per scan
- + PaperMoney simulator lets you test scan strategies with $100K virtual capital in live markets
- + Scans stocks, ETFs, options, futures, and forex in a single integrated platform
Cons
- - Steep learning curve with a dense, intimidating interface that takes weeks to navigate
- - No public API for external automation or programmatic integration
- - Mobile app uses a separate interface from desktop with reduced scanning capabilities
- - No AI-powered scanning or predictive signals — purely rule-based filtering
- - Complex scans can be slow during high-volume market hours