ATAS takes the higher overall PlatformScore (77/100 vs 66/100), leading on value, ease of use, prop-firm and community. Sierra Chart counters with stronger automation. Both are built for futures traders, but they land in different spots. This page breaks down all seven scoring axes, then a plain answer on who should pick which.
Last updated: August 9, 2026
| Feature | ATAS | Sierra Chart |
|---|---|---|
| Pricing structure (lifetime vs monthly) | Free tier · Lifetime $1079-2159 | From $26-56/mo · No lifetime option |
| Supported data feeds | Rithmic, CQG, dxFeed | Denali, Rithmic, CQG, Teton |
| Prop firm support | Moderate-High (Rithmic (broad)) | Moderate (DTC connector) |
| Metric | ATAS | Sierra Chart |
|---|---|---|
| From | $0-89.95/mo | $26-56/mo |
| Prop-firm support | Moderate-High | Moderate |
| Connection | Rithmic (broad) | DTC connector |
| Value | 9.0 | 5.0 |
| Order Flow | 9.0 | 9.0 |
| Automation | 5.0 | 8.0 |
| Ease of Use | 6.0 | 3.0 |
| Broker/Data | 8.5 | 8.5 |
| Prop-Firm | 7.0 | 5.5 |
| Community | 9.1 | 7.6 |
| PlatformScore | 77 | 66 |
Visit ATAS →Visit Sierra Chart →
Price & value: ATAS leads here at 9.0/10 (elite) vs Sierra Chart's 5.0/10. ATAS runs $0-89.95/mo with a free tier, Sierra Chart runs $26-56/mo. Value here weighs subscription cost against the data feed you can't avoid, not just the sticker price.
Order flow: ATAS and Sierra Chart are essentially tied here (9.0 vs 9.0/10). This axis measures footprint charts, DOM/ladder tools, volume profile and liquidity heatmaps, the tools order-flow and tape-reading traders lean on most.
Automation & backtesting: Sierra Chart leads here at 8.0/10 (excellent) vs ATAS's 5.0/10. This axis measures scripting language depth and the strategy backtesting/optimization engine, what matters if you're coding and testing your own systems rather than trading discretionarily.
Ease of use: ATAS leads here at 6.0/10 (middling) vs Sierra Chart's 3.0/10. This axis measures how quickly a new trader gets productive, the inverse of the learning curve. It matters most in the first few weeks, well before it affects your actual trading results.
Broker & data flexibility: ATAS and Sierra Chart are essentially tied here (8.5 vs 8.5/10). ATAS connects via Rithmic (broad) across 3 data feed(s). Sierra Chart connects via DTC connector across 4 data feed(s). Broker lock-in matters if you ever want to switch brokers without switching platforms too.
Prop-firm support: ATAS leads here at 7.0/10 (solid) vs Sierra Chart's 5.5/10. ATAS rates Moderate-High for prop-firm support (Rithmic (broad)). Sierra Chart rates Moderate (DTC connector). Both are confirmed compatible with Apex, Bulenox, Elite Trader Funding.
ATAS wins 3 of these 6 head-to-head axes to 1, but the margins vary a lot, worth weighing which axes matter most for how you actually trade.
| Cost | ATAS | Sierra Chart |
|---|---|---|
| Platform price | Free | $26-56/mo |
| Market-data feed | Rithmic/CQG/dxFeed (via broker) | Denali + exchange fees (Pkg 10+ needed for external data) |
Your real monthly cost is the platform price plus the market-data feed. That is why a cheap or free platform can still run more than a pricier all-in-one once you add data, and it is the single biggest thing a sticker price hides. Compare the totals, not the sticker prices.
Pick ATAS if its community rating and value for money matter most to you. It's the stronger fit for community-driven traders and budget-conscious traders. It also runs a genuinely usable free tier. One concrete edge: genuinely usable free tier.
Pick Sierra Chart if order-flow & DOM depth and data-feed & broker flexibility matter most to you instead. It leans toward order-flow & DOM traders and multi-broker traders. One concrete edge: deep customization; once it's dialed in, the platform is truly yours.
Neither choice is permanent. Most traders eventually run more than one platform side by side once they know exactly which job each one is best at.
With either platform you subscribe to a market-data feed through your broker or prop firm, then enter those login details into the software (broker-locked platforms bundle the feed instead). The feed, not the platform, delivers real-time prices, and it is a separate recurring cost.
Prop-firm rules (daily loss, trailing drawdown, consistency) apply to your trading, not the software. What matters is compatibility: ATAS connects via Rithmic (broad) (Moderate-High prop support), Sierra Chart via DTC connector (Moderate). Confirm your firm supports the one you pick.
ATAS is cheaper to start, it has a free tier and Sierra Chart does not. See the price & value breakdown above for what that actually buys you on each platform.
ATAS rates higher for prop-firm support here. ATAS is Moderate-High (Rithmic (broad)), Sierra Chart is Moderate (DTC connector). Always confirm your specific firm allows the platform before funding an account.
They're evenly matched for order flow, both rate 9.0/10 for footprint, DOM/ladder and volume-profile tooling.
Sierra Chart scores higher for automation and backtesting, 5.0/10 vs 8.0/10, the axis that covers scripting depth and strategy testing.
ATAS has the gentler learning curve, rating 6.0/10 for ease of use vs 3.0/10. A shorter learning curve mostly saves you time in the first few weeks, it isn't a lasting edge on its own.
ATAS scores 77/100 overall, Sierra Chart scores 66/100. ATAS is the higher overall score, driven mainly by the axes where it leads above.
Yes. Plenty of traders run two platforms side by side, one for charting and order flow and another for automation or execution, rather than treating this as an exclusive choice.