Institutional-style flow signals for the price of zero, as long as you treat them as inputs, not orders.
Prospero AI scores 72 out of 100 across five pillars, 20 points each.
An honest Prospero AI review covering signals, pricing, performance claims, and our Alpha Score. See if this free AI stock picker earns a spot on your phone.
Read the full Prospero AI teardownProspero AI does something unusual in this category: it gives away the product. The app distills options flow, dark pool activity and model rankings into roughly ten readable signals, with no paywall and no in-app purchases, which earns price-to-value a 19. Net Options Sentiment is the headline signal and the newsletters publish their picks on a regular cadence, so you can track the calls yourself. Users consistently praise how readable the app is for a flow product.
The performance marketing deserves your skepticism, and the company's own fine print agrees: the outperformance claims are labeled hypothetical. One independent paper-trade test of its picks ran slightly negative over its window, the model is a black box beyond the signal definitions, and the App Store base is tiny at 57 ratings. Treat the signals as one input in your process, never as a trade instruction.
Hover, tap, or focus a card to see who we'd point at this tool — and who should walk away.
The traders who get the most out of Prospero AI.
Where Prospero AI is the wrong spend.
A real complaint from the trading forums, and what this tool actually does about it.
“My hangup is the black box vibe. If I can’t see what the model is actually keying off of, I’m basically just replacing my hunches with a robot’s hunches.”
Source: r/stocks
Prospero answers half of that complaint: every signal is defined in plain language in the app, so you know what Net Options Sentiment measures even if you cannot see the model weights. The other half stays true, which is why the free price matters. Score the newsletter picks yourself for a month; free means the test costs you nothing but attention.
Sentiment pulled from two independent sources, kept separate so you can weigh each one yourself.
“The dev team really did a fantastic job making this a visually intuitive experience. Very easy to read and understand the market pressures. AND, probably most notable is the fact you’re NOT hit with a pay-wall 👏🏼 very few of these that exists anymore.”Read the original on App Store →
“At the beginning I was a little skeptical, but little by little I’ve been looking a good research on different stocks, how easy is to understand the information provided”Read the original on App Store →
“The only thing that bugs me is that there’s still a lot of companies that have yet to be added on the app. Aside from that it’s great!”Read the original on App Store →
“Terrible customer service. I was interacting with support for a simple question that was yes or no.”Read the original on App Store →
Every quote is real and traceable. How we source them →
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All signals, watchlists, daily screener and learning guide on iOS and Android. No paid tier is published.
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Investing newsletter (bi-weekly picks) and trading newsletter (near-daily), both free by email.
Prices change. Check the vendor’s page before you buy.
One email a week. What we tested, what scored, and what we'd skip. Written for traders, not for clicks.
Prospero AI does something unusual in this category: it gives away the product.
