Tapeline

Tapeline is a stock scanner that scores every liquid US stock and ETF and, unusually, tells you exactly how it got the number. Most screeners either hide their logic behind a marketing label or bury it in settings you have to reverse-engineer. Tapeline publishes the formula, refreshes the scores every sixty seconds while the market is open, and lays everything out in a sortable table with a short reason attached to each pick. The whole product is built around the idea that a signal you can't inspect isn't worth much.

The heart of it is the Tapeline Score, a single composite number built from six weighted factors. Trend carries the most weight at 25 percent, followed by relative strength at 20 percent, then fundamentals, smart money flow from insider and institutional activity, and macro indicators at 15 percent each, with momentum making up the last 10 percent. Every ticker ends up with one score and a one-sentence plain-English explanation of why, plus a signal label that runs from HIGH CONVICTION at the top down to WEAK at the bottom, so you get both the number and a quick read on how strong it is. Sorting by the composite pushes the strongest names to the top of the table in a single click, so the scan doubles as a fast shortlist.

What sets it apart is a stubborn commitment to being checkable. The factor weights are fixed and announced publicly before they ever change, so you always know the recipe you're looking at rather than chasing a formula that shifts silently underneath you. A public scorecard logs the top ten picks automatically at every market close and tracks how they perform the next day against the S&P 500, and the losing picks are left visible rather than quietly deleted. That last part is rare, because most tools showcase their wins and let the misses disappear, which makes their track records impossible to trust. Keeping the misses on the record is what lets the history mean anything at all.

The language is deliberately descriptive rather than prescriptive. Tapeline describes what the tape is doing, so a high score reflects strength and momentum in the price action instead of a blunt instruction to buy or sell. That framing keeps it on the analysis side rather than dressing itself up as financial advice, and it leaves the actual decision with you. For traders who've been burned by black-box signals that never explain themselves, that transparency is the entire selling point.

It's built for active traders and self-directed investors who want a quantitative read on the whole market without trusting a hidden algorithm. You can sort the scanner to surface the strongest names, look up specific tickers to see their breakdown, and follow the daily top ten to watch how the system's picks actually played out over time. Because the scores update through the session, it fits people watching the market live just as well as those who only want a once-a-day shortlist, and the reasoning attached to each pick gives you a starting point for your own research rather than a bare number that tells you nothing about the why.

There's a free daily email digest of the top ten picks for anyone who wants the signal without sitting in the app. The whole product leans on verifiability as its identity, and the public track record against SPY is meant to let you judge whether the formula is any good before you pay for more of it. It's honest about the fact that the score is a description of market behavior and not a promise, which is a healthier posture than most screeners take when they sell certainty they can't actually deliver. The digest lands once a day and costs nothing, so you can watch the system work for weeks before deciding whether the paid tiers are worth it.

Access is freemium. The free plan is genuinely usable and lasts forever, with live scores at no delay, five ticker look-ups a day, the top ten scanner rows, and a three-ticker watchlist. Pro runs $9.99 a month and Premium is $19.99 a month, both cheaper paid annually, and there's a fourteen-day Premium trial that doesn't ask for a card plus a thirty-day money-back guarantee on any paid plan. The team calls this founding pricing and says existing subscribers keep their rate if prices rise later, so early sign-ups aren't punished when the price moves up. Paid annually, Pro works out to about $8.25 a month and Premium to about $16.58, you can cancel in one click, and larger needs like extra seats, a custom service level, or a one-time founder's lifetime are handled through the sales team.