Coil vs ChartingLens
An affordable AI charting platform with a win-rate screener vs. a fixed-universe scanner whose scores an autonomous engine actually trades — compared on coverage, scoring, and how each frames its numbers.
ChartingLens and Coil are both affordable, hosted, AI-driven stock tools — that much they genuinely share, and neither will cost you what a Trade Ideas or TrendSpider tier does. Past that, they're different instruments. ChartingLens is a charting platform with an AI screener bolted on well: professional charts across stocks, crypto, forex, and futures, plus a screener that surfaces about 25 daily buy signals scored by the historical win-rate of similar setups, with an AI chat that explains each one. Coil Scanner is a scored board, not a charting tool: every name in three fixed universes — the S&P 500, the Nasdaq-100, and a macro ETF book — scored every market morning, and the same board Coil's own long-only engine trades. Neither is "better" in the abstract; they answer different questions. This page lays out the honest trade-offs.
Coil is independent and is not affiliated with, endorsed by, or partnered with ChartingLens. Everything below describes ChartingLens from its public materials as of July 2026; any performance language — including win-rate scoring — is their methodology and their claim, not ours. Prices change; check their site. Nothing here is investment advice or a recommendation to buy, sell, or hold any security.
What ChartingLens actually is
ChartingLens is genuinely good at what it does, and it's worth saying so plainly. It's a web-based charting platform pitched as a cheaper TradingView alternative — "Smarter Trading for Less" is the slogan — with an unusually complete AI layer for the price:
- Real charting. Nine chart types, 40+ indicators, 25+ drawing tools, multi-chart layouts, bar replay, and a paper-trading simulator, across stocks, crypto, forex, metals, and futures on 70+ global exchanges. Coil draws none of this; if you want charts, this is the category ChartingLens actually competes in.
- An AI screener with explanations. The screener scans 2,000+ stocks and publishes around 25 ranked buy signals a day, each scored by the historical win-rate of similar setups, and an AI assistant will explain why a given name scored the way it did. The "ask it why" loop is a genuinely good idea — opaque signals are the worst kind.
- A natural-language backtester. Describe a rule in plain English ("buy when RSI crosses above 30 and MACD turns positive") and it backtests it — no code. That lowers a real barrier.
- Smart-money context. SEC Form 4 insider-trade data and holdings tracking for a roster of well-known fund managers, folded into the chart view.
- A genuinely usable free tier. Charts and real-time data cost nothing and need no card; the screener and daily signals live in the paid tiers. Independent reviews single the free tier out, fairly.
Pricing, as of July 2026: a free tier, Premium at $14.99/month ($149/year), and Pro at $29.99/month ($299/year), with earlier subscribers grandfathered at $9.99/month — check their site, since pricing can change. Credit where due on the marketing, too: ChartingLens's own buyer's guide explicitly rejects platforms promising "80%+ hit rates or guaranteed returns" and calls 55–65% win rates realistic. That's more candor than most of this category manages. The independent criticisms are narrow and worth knowing: no scripting language of TradingView's Pine calibre and a smaller indicator catalog — gaps that matter mostly to Pine developers and social-charting users.
What Coil is — and isn't
Coil is two products sharing one scanner brain, and neither of them is a charting platform. Coil Scanner ($12/month or $99/year) is the hosted board: every name in the S&P 500, the Nasdaq-100, and a macro ETF book (bonds, income, gold and metals, commodities) scored every market morning for opportunity, entry-window (READY / SETUP / WAIT / CHASE / FALLING), hold-conviction, leadership, and growth — plus an explicit market-posture verdict and sector-rotation phase for the day. It doesn't screen; it scores everything in its universes, including the names that score badly. The free preview shows the top three names per book, one day delayed, and there's a click-around demo if you'd rather poke it than read about it.
Coil Trading Bot ($29, one-time) is the upgrade path: the same scanner running locally on your machine, plus a long-only engine that acts on the board — buying names that score READY or SETUP at real entry windows, sizing by conviction, holding under structural stops, and raising cash when the pool is thin. It never shorts and never touches inverse ETFs; a "down" market means cash and defensive rotation into the macro book, by design. It's built to be run by your own AI agent — it's designed for Claude Code, placing orders through a broker connector built for Robinhood's agentic accounts (or any equivalent broker MCP). Coil itself is not an MCP server: it reads the board, decides, and asks your broker's connector to execute, with your credentials never leaving your machine. It ships with live trading off until you deliberately arm it.
The leveraged-ETF risk is real. Coil's engine accelerates its strongest leaders with leveraged ETFs at reduced notional — a 3x leveraged ETF triples the daily move, so a ~10% move in its index is roughly ~30% in the ETF before gaps and slippage, and leveraged ETFs decay on multi-day holds. They can lose value rapidly, including total loss of the capital you put in. No screener and no engine removes that. Coil's structural stops and rule-based exits aim to reduce single-day damage — they do not guarantee it, and a stop can gap straight through a price.
The comparison
| Question | ChartingLens | Coil |
|---|---|---|
| Core model | Charting platform + AI screener — surfaces the day's best matches | Fixed-universe scanner — scores every name on the board, plus a $29 engine that trades it |
| Coverage | 2,000+ stocks plus crypto, forex, metals, futures on 70+ global exchanges | S&P 500 + Nasdaq-100 + a macro ETF book — U.S. only, deliberately fixed |
| Screen or score | Screens: shows you ~25 ranked matches per day | Scores: every name, every market morning — including the ones that rank last |
| Charts | The real thing — 9 chart types, 40+ indicators, drawing tools, bar replay | None. Coil is a scored board, not a charting tool |
| How picks are explained | An AI chat explains why a setup scored well — genuinely useful | Every score ships with its components: entry window, hold-conviction, leadership, regime |
| Market regime | Per-stock signals with news and earnings context; a whole-market verdict isn't a headline feature of its materials | An explicit market-posture verdict and sector-rotation phase published with every board |
| Skin in the game | Signals are informational — nothing at ChartingLens trades them | The same board is what Coil's own long-only engine actually trades |
| How performance is framed | Setups scored by historical win-rate of similar patterns — their methodology, their claim | No win rates — full-period backtest next to SPY, with max drawdown and an unflattering rider |
| Automation path | Paper trading and a no-code backtester; you place trades yourself | $29 one-time engine your own AI agent runs through your broker's connector, ships live-OFF |
| Cost model | As of July 2026: free tier; Premium $14.99/mo ($149/yr); Pro $29.99/mo ($299/yr); check their site | Scanner $12/mo or $99/yr (free 1-day-delayed top-3 preview); Trading Bot $29 one-time |
| Who owns the risk | You | You |
The last row is identical, and that's the honest center of any tool in this category: you are the account holder, and every trade is yours. Anything that implies otherwise is the thing to be careful of.
Screening vs scoring the whole board
The deepest difference isn't price or AI — it's what question each tool answers. A screener answers "which stocks match right now?" and hands you the matches. That's useful, but it has a structural property worth noticing: you only ever see winners of the filter. A day with 25 signals looks exactly like every other day with 25 signals, whether the market is offering real opportunity or the screener is scraping the bottom of its threshold to fill the quota.
A fixed-universe scanner answers "how does every name rank today?" Because Coil scores the same board every morning, three things a screener can't give you fall out for free: thin days look thin — when nothing scores READY, the board says so instead of surfacing the least-bad 25; movement is meaningful — a name climbing from WAIT to SETUP over a week is information a daily match-list can't carry; and you can't be shown only the flattering subset, because the whole universe is on the page, bad scores included. Neither approach is dishonest — they're just built for different jobs. A screener is a discovery tool across a huge pool; a scored board is a decision tool over a pool you've committed to.
What a win-rate score does — and doesn't — tell you
ChartingLens ranks its setups by the historical win-rate of similar patterns, and — credit again — its own materials warn readers off anyone promising 80%+ hit rates. So this section isn't an accusation; it's the statistical caveat that applies to any win-rate framing, theirs or anyone's. A win rate, on its own, is incomplete in three specific ways: it says nothing about magnitudes (many small wins plus occasional large losses can win 60% of trades and still lose money), it has no benchmark (a good hit rate means little if buying and holding SPY did better over the same window with zero effort), and it says nothing about drawdown (identical win rates can hide wildly different worst stretches — and the worst stretch is what decides whether a real person keeps running a system). When you evaluate any tool — ChartingLens, Coil, or anything else — ask for full-period returns against a benchmark and a maximum drawdown. Our guide on how to read a backtest walks the full checklist. That framing is why Coil publishes its numbers the way it does, below — including the parts that don't flatter it.
Honesty about the numbers
We won't quote ChartingLens's signal statistics as evidence in either direction — they're per-setup figures under their methodology, and you should read them on their site with the same checklist you'd apply to ours. For Coil, here are the figures, framed exactly as they should be. In a point-in-time research backtest (2017–2026 H1, survivorship-free with delisted names included, next-open fills, costs modeled), the leadership-rotation backbone Coil's scoring is built on compounded +638% versus SPY's +282%, with a shallower worst drawdown (−23% vs −32%) and a positive result in 9 of 10 years (worst −1%, in 2018). Read the honest rider with it: through the end of 2025 it ran roughly even with SPY at about one-third less drawdown — the outperformance concentrates in leadership regimes (2025 +51%, 2026 H1 +86%). These are research figures, not live or client results; the engine is newly live, and past performance does not predict future results.
| Year | Coil (research) | SPY |
|---|---|---|
| 2017 | +17% | +20% |
| 2018 | −1% | −7% |
| 2019 | +7% | +30% |
| 2020 | +22% | +19% |
| 2021 | +6% | +28% |
| 2022 | +13% | −16% |
| 2023 | +10% | +23% |
| 2024 | +12% | +27% |
| 2025 | +51% | +17% |
| 2026 H1 | +86% | +10% |
| Cumulative | +638% | +282% |
| Max drawdown | −23% | −32% |
Read it as a hypothesis, not a promise. This is a research backtest of the scoring backbone, not a live or client track record — the engine is newly live, and the rider above matters: most of the edge concentrates in leadership regimes, and it can run merely even with the index for long stretches. On thin days the engine simply raises cash rather than force a trade; any uncommitted cash earns whatever your broker's variable sweep pays — the broker's yield, variable, not paid by Coil, and not risk-free. Coil does not generate or promise any yield.
How to choose
If what you actually want is charts — drawing on price, bar replay, crypto and forex alongside stocks, a paper-trading sandbox, an AI you can interrogate about any chart, and a no-code backtester for your own ideas — ChartingLens is genuinely the better fit, at a price that undercuts the incumbents it names. Coil draws no charts and won't pretend to. If what you want is a decision-ready board — every S&P 500, Nasdaq-100, and macro name scored each morning, a regime verdict on top, no win rates in the marketing, and scores with skin in the game because Coil's own engine trades the same board — that's the gap Coil fills, with a $29 one-time Trading Bot when you want the board acted on instead of just read. For adjacent comparisons, see Coil vs Trade Ideas and Coil vs TrendSpider (the pricier screeners ChartingLens itself benchmarks against), or the broader Coil vs trading bots and signal services; for the agent and broker setup, the Claude + Robinhood agentic trading guide walks it through.
Neither tool can promise a profit, and neither removes market risk. They're built for different desks. If you want to see what a scored board looks like before paying anything, the demo is a click away and the free preview publishes the top three per book, one day delayed.
The whole board, scored every morning
Coil Scanner scores every S&P 500, Nasdaq-100, and macro name each market morning — $12/month or $99/year, with a free one-day-delayed top-3 preview. When you want the board traded for you, the Trading Bot is $29, once.
See the Scanner — $12/moScanner — $12/moCoil Scanner is a hosted research tool; Coil Trading Bot is software you install and run yourself, with your own brokerage credentials and capital. Both are long-only and not investment advice, not a managed account, and not a signal service. Leveraged ETFs, where the engine uses them, can lose value rapidly, including total loss. All performance figures are research backtests — point-in-time and survivorship-free, not live or client returns; past performance does not predict future results.