Learn something new in just 5 minutes a day with book summaries and carefully…
SmartheadsSerious warnings 2 confirmed warnings, and users report 3 more things. Checked: 2,006 reviews, the Android app’s code, the store listing and the privacy label.
From our automated analysis, 21 Oct 2026. Every label links to its evidence in the full report below.
This analysis describes version 33.0.0 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-21 .
The store currently lists version 33.0.0, updated 2026-10-14.
Store screenshots supplied by the developer.
Learn something new in just 5 minutes a day with book summaries and carefully curated ideas from the world's most popular books, presented through beautiful art and a delightfully focused reading experience.
Stop Doom Scrolling -> Download Deepstash -> Use it for 5 min/day -> Become the smartest in the room.
Join 11 Million+ people discovering powerful insights from books like Atomic Habits, The Psychology of Money, Think and Grow Rich, and hundreds more, all distilled into bite-sized ideas you can read at a glance.
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WHAT MAKES DEEPSTASH DIFFERENT
Microlearning in Deepstash comes as beautifully designed idea cards: short, visual notes that condense profound thoughts from bestselling books into simple, memorable insights. Each idea is paired with stunning artwork that makes learning feel less like work and more like inspiration.
No clutter. No distractions.…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
Findings that met the published evidence standard.
Cancellation copy routes the user away from a direct control: "Please contact support to cancel your subscription."
Cancelling the subscription is blocked, hidden, multi-step, or simply does not take effect.
Package artefact
Appworthy
sha256:0ae1590672ebd9e44662a683eaf803fb15adedc4adb7d0b999de16049aae164fProgress is gated behind watching an ad: "Watch an Ad to Continue"
Advertising volume or placement that interrupts normal use: ads between every action, unskippable or forced full-screen ads.
Package artefact
sha256:0ae1590672ebd9e44662a683eaf803fb15adedc4adb7d0b999de16049aae164fSpecific evidence of a useful property, within the stated scope.
Offers a one-time or lifetime purchase: "Lifetime deal"
The app's own text offers a one-time or lifetime purchase, or reviewers report that the price is stated clearly.
Package artefact
sha256:0ae1590672ebd9e44662a683eaf803fb15adedc4adb7d0b999de16049aae164fThe developer's store data-safety disclosure states that data deletion can be requested; we have not seen a deletion control in the app's own text
The developer's data-safety disclosure on the store states that users can request deletion of their data, or the app's own text offers a way to delete the account. This restates what the developer declares; it is not a test of whether deletion works. Apple publishes no equivalent disclosure, so on an Apple-only listing only the app's own text can support it.
Open observations that have not cleared the evidence bar.
Trial converts to a charge: raised by 13 distinct reviewers (about 1 in 154 reviews we read)
This observation has not cleared the required evidence standard.
The free trial demands a payment method up front and/or rolls into a paid subscription with no usable warning.
Surprise charges: raised by 26 distinct reviewers (about 1 in 77 reviews we read)
This observation has not cleared the required evidence standard.
A large number of reviewers report being charged when they did not expect it — including being charged after cancelling during a free trial, or when a trial turned into a paid plan without warning. We cannot see anyone's billing, so this is published as an attributed user report: what reviewers say, and how many of them said it.
Misleading advertising: raised by 30 distinct reviewers (about 1 in 67 reviews we read)
This observation has not cleared the required evidence standard.
Reviewers repeatedly report that the app is not what its advertising showed. We never see the ad creative itself, so nothing we collect can corroborate or refute this — it is published as an attributed user report: what reviewers say, and how many of them said it.
Purchase screen steers the choice: "Best value"
This observation has not cleared the required evidence standard.
The purchase screen arrives with one plan already framed as the recommended or most popular choice, so the default is the app's preference rather than the user's. We do not compare the plans' prices, and only the app's own text evidences this, so it is shown, but never counted as a charge.
Package artefact
sha256:0ae1590672ebd9e44662a683eaf803fb15adedc4adb7d0b999de16049aae164fDeadline pressure in the app's own copy: "Limited Offer"
This observation has not cleared the required evidence standard.
The app's own purchase copy attaches a deadline to buying — a countdown, 'offer ends in', 'limited time' — or ships a countdown view on a purchase-screen layout.
Package artefact
sha256:0ae1590672ebd9e44662a683eaf803fb15adedc4adb7d0b999de16049aae164f2,006 reviews read for this analysis. Each observation keeps the sample and store it was based on.
nice app but the way they say it looks like you pay only for one month without subscribing. not only it subscribed me without me realising but next month I paid double the price without even wanting to continue. then the subscription…
just another money grabber scam with extremely poor customer service and loads of adds look and read all the reviews and not the all fake reviews that have clearly been generated
The only thing you learn is the lines to the endless ads. Good, terrible execution
No sampled quote is attached to this observation.
scam with subscription, avoid this app
Very disappointing experience. I paid for one month of Deepstash Pro and was unexpectedly charged another $22.61 today. I don't recall being clearly informed of the auto-renewal. I barely used the app because the content was superficial…
The charged me over $70 for a membership fee I did not want, and they are refusing to refund me.
No sampled quote is attached to this observation.
A sampled review illustrates one person’s experience. It does not establish a finding on its own.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
Android package 33.0.0, scanned 21 Oct 2026. These describe that package, not the current store version.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
This analysis describes version 33.0.0 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-21 .
The store currently lists version 33.0.0, updated 2026-10-14.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
No release notes were provided for this version.
No release notes were provided for this version.
No release notes were provided for this version.
deepstash-google-com-deepstashAssessed 2026-10-21 from 2,006 user reviews, the app's package, the store listing and its privacy label.
What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
This assessment is produced automatically. Six independent signals are read — user reviews, SDKs in the app package, the app's own on-screen text, the app manifest, the store listing and the store privacy disclosure — and each candidate finding is filed under the sources that support it.
No charge stands on one kind of evidence — with one published exception. A finding is either a measured fact that anyone can reproduce (an ad SDK is in the package; every subscription bills weekly; the privacy label omits a tracker we can see), or it is an interpretation — and an interpretation needs independent sources to agree before it reaches the catch list. The exception is a harm only users can see: a charge may publish from reviews alone, as “Reported by N users”, once enough reviewers raise it to clear that charge’s own published bar. That agreement rule is what replaced the human reviewer, not a model’s confidence.
There is no overall score, on purpose. A 0–99 number was published here until 2026-09-15. It was withdrawn because it discriminated too weakly to be the instrument — 44.7% of every pair of apps tied — and because a single number is a verdict where a count is an observation. What publishes instead is a row of measurements, each of which says what was counted and, where we could not look, says that instead.
Findings under One source only are real reports we do not stand behind as findings. They are shown because withholding them entirely would hide a genuine complaint, and labelled because publishing them as charges would be an accusation off a single source.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.