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Sketchbook®
Sketchbook, Inc · Lifestyle

We analyzed this app across 5 independent signals and corroborated nothing unfair. That is a signal, not an audit.

Nothing unfair corroborated · unauditedConfidence: High5 signal sources1,001 reviews scannedNot human-reviewedas of 2026-10-05
 Which version this describes

App Store

This analysis describes version 6.2.8 of the app, analyzed 2026-10-05 . The app may have changed since.

The store currently lists version 6.2.8, updated 2026-06-01.

Google Play

This analysis describes version 6.2.6 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-05 . The app may have changed since.

The store currently lists version VARY, updated 2026-05-30.

What the analysis found

Each finding shows what agreed and how strongly. Automated analysis

Positive evidence 1

Things this app does right, published at the same strengths as the catch list.

States a price, or offers a one-time purchase
Measuredfrom user reviews and the app's own on-screen textartefact e8b1484132cb…
The app's own text offers a one-time or lifetime purchase, or reviewers report that the price is stated clearly.
What we saw: Offers a one-time or lifetime purchase: "Buy Pro Tools on your Android devices with a ONE-TIME purchase"

One source only — shown, not confirmed 4

A single kind of evidence. We publish these because withholding them would be the bigger distortion, and we do not treat any of them as a finding we stand behind.

Reported by users: Aggressive ad load
One source onlyShown, not confirmed — the only source is user reviews.view evidence
Advertising volume or placement that interrupts normal use: ads between every action, unskippable or forced full-screen ads.
What we saw: Aggressive ad load: raised by 5 distinct reviewers (0.9% of 551 reviews scanned)
In the app's own text: Paywall with no way past it
One source onlyShown, not confirmed — the only source is the app's own on-screen text.artefact e8b1484132cb…
A paywall screen ships with no dismiss, skip or 'maybe later' affordance anywhere in the package, so the app's own text offers no way in without paying.
What we saw: Ships a purchase screen ("Upgrade to Premium") with no dismiss, skip or "continue free" text anywhere in the package
In the app's own text: Hard to cancel
One source onlyShown, not confirmed — the only source is the app's own on-screen text.artefact e8b1484132cb…
Cancelling the subscription is blocked, hidden, multi-step, or simply does not take effect.
What we saw: Sells a subscription in-app but ships no cancel or manage-subscription text of its own, leaving the store's settings as the only exit
In the app's own text: Trial terms not stated in the app's own text
One source onlyShown, not confirmed — the only source is the app's own on-screen text.artefact e8b1484132cb…
The app's own screens offer a free trial without stating, beside it, what happens when the trial ends. Read this as context rather than as a charge: renewal terms are normally shown on the store's purchase sheet instead, which we cannot see, and we can only observe one kind of evidence for this — so it is shown, but never counted as a charge.
What we saw: Offers a free trial ("START FREE TRIAL") with no renewal price, renewal date or auto-renew notice anywhere in the app's own text

What reviewers said

Verbatim excerpts from public store reviews, shown as corroborating user reports. They are not Appworthy audit evidence, and a quotation is not proof of the finding it sits under.

States a price, or offers a one-time purchase

If all you want is a simple app to illustrate or doodle, this is the app (knock on wood). As a free app, the features it comes with are plentiful. No ads, no filters, no nothing. Just simple drawing. I'd love if they add new (emphasis on…

4★ · Google Play · 2026-09-10

I love this app it's really great and it's only a one-time payment of $4 to get the other tools But where is the liquefy tool either I'm blind and I can't see it or isn't there but like most of my other apps if I use them for a long time…

5★ · Google Play · 2026-09-20

The app is pretty good. I've used it for a few months and recently bought premium (one time payment). The premium has some basic features but some others are really nice to have such as lasso fill and folders. My biggest complaint is it…

4★ · Google Play · 2026-09-09

Aggressive ad load

Great App — Literally the perfect app for drawing. Usually you see tons of ads and/or things you have to buy to use. Not for this! No ads whatsoever and the only thing premium seems to do is add favorites. All brushes are free and there…

5★ · App Store · 2026-04-21

No ads!! — People say too many ads no ads!!!

5★ · App Store · 2026-03-06

yay — Great app! Switched over from another app that got flooded with ads a while ago, and recently upgraded to premium. Some of the other reviews here are pretty confusing, though, since they claim the app doesn't have features that I've…

5★ · App Store · 2026-02-12

What this app sells

Every purchase the store discloses. Store listing
 What this app sells

From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.

One-off packs1
Premium BundlePack$2.99
Google Play doesn’t publish per-purchase prices, so this list covers the other store only.

How the automated analysis works

Automated, corroborated, and never human-reviewed without a person.

This assessment is produced automatically. Five independent signals are read — user reviews, SDKs in the app package, the app's own on-screen text, the app manifest and the store listing — 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.

 Not yet human-reviewed

Several measurements above say “Not assessed” because no artefact we hold can answer them. A human review is what resolves those — and it can remove a favourable band as easily as add one.

Hands-on inspections are not yet open.

 How this page was produced
Analyzed 2026-10-05 Version analyzed: 6.2.8 (App Store), 6.2.6 (Google Play)5 independent signals1,001 reviews scannedConfidence: HighNot human-reviewedVocabulary v1.13Methodology v1.3
Signals run: user reviews, SDKs in the app package, the app's own on-screen text, the app manifest and the store listing. Not yet checked: the store privacy disclosure.