“played for 10 minutes and probably had 300 pop-ups wanting me to spend real money. also entirely too many ad-ons. I just wanted a simple blackjack game. uninstalled after 10min. edit: almost a year later and I tried again. now same…”
Independent automated assessment · 6 signal sources · 489 reviews scanned · analyzed 2026-10-04.
Blackjack 21: Blackjackist
KamaGamesJoin millions of blackjack players worldwide in this authentic, free-to-play…
4.5 ★277,764 ratings
10M+Downloads
12+Age rating
—App size
Free · In-app purchasesIn-app purchases
About this app
Join millions of blackjack players worldwide in this authentic, free-to-play blackjack app! Immerse yourself in the thrilling world of Blackjack 21: Blackjackist, competing with players from around the globe in real time. Whether you're a seasoned blackjack pro or just starting your blackjack journey, our casino offers the perfect platform to enjoy and improve your blackjack skills.
Why choose Blackjack 21: Blackjackist?
REAL 3D BLACKJACK: Experience the excitement of real blackjack with our cutting-edge graphics and smooth animations. Our blackjack tables are designed to replicate the atmosphere of high-stakes casino blackjack rooms, providing an immersive blackjack experience that keeps you on the edge of your seat.
FREE CHIPS EVERY DAY: Kickstart your black jack adventure with generous daily bonuses.…
Preview
Real screenshots from the store listing.
Independent evidence report
The evidence behind this assessment
This is where the page changes from an app-store listing into an evidence report: findings, important reviews, pricing and a dated history.
Which version this describes
When we ran this analysis, and what the store lists now.
This analysis describes version 75.8.0 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-04 . The app may have changed since.
The store currently lists version 75.8.0, updated 2026-07-30.
What we measured
Each line is a measurement published as a measurement, never a verdict.
Each line is a measurement, published as a measurement. Where we have not looked, the line says so rather than reading as a zero.
Developer replies to reviews
Replies to at least 1 review in 20
Price in the store description
States no price and billing period
Cancelling, in the store description
Does not say how to cancel
Themes reported by reviewers
1 theme reported
Counted from the reviews we have read for this app. "No theme reported" means no theme reached our reporting threshold — it is not a finding that nothing is wrong with this app, and we do not say it is.
Five-star share of ratings
65–79% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.
In the package we scanned
From the package we downloaded and read — version 75.8.0, scanned 2026-10-04.
Permissions Android classifies as dangerous
1–2 requested
Counted against the eighteen permissions listed in collect-package.ts. A dangerous permission is one Android asks the user to grant; requesting one is not itself a finding.
Analytics or tracking SDKs in the scanned package
1–2 found
Advertising SDKs in the scanned package
10 or more found
Counted as distinct SDKs in the package we scanned. One mediation bundle can contribute several, so this is not a count of advertisers.
Graded bands · predicate set 1.4 · how these are measured
What the analysis found
App-specific findings, grouped by what each one rests on. How they are graded lives on its own page.
The catch list 1
Charges we publish at a strength we stand behind: measured from an artefact, agreed by independent sources, or reported by enough users to clear that charge's own published bar.
Multiple ad networks bundled
The package embeds several distinct advertising or mediation SDKs — a stack built for ad volume, not for a single house ad.
What we saw: Bundles 16 distinct ad networks / mediation SDKs: Amazon Publisher Services, AppLovin MAX, BidMachine, Chartboost and 12 more
Positive evidence 1
Things this app does right, published at the same strengths as the catch list.
Developer says data deletion can be requested
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.
What we saw: The 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
One source only — shown, not confirmed 1
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
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 8 distinct reviewers (1.6% of 489 reviews scanned)
Highlighted reviews
Representative public review excerpts shown as user reports, not Appworthy audit evidence.
“rigged game through and through. just out to get your money. don't waste your time. slots and table games are all rigged. takes up way to much space on your device as well and non stop ads and pop ups trying to sell you something”
“The game might be fun but I cannot sit through ad after ad which forces me to select my app store because back out only works sometimes when the ad ends. If you love ads this is the game for you.”
Assessment & version history
App changes and Appworthy events in one timeline.
Store listing updated to version 75.8.0.
What this app sells
Useful store-disclosed pricing, kept below the app listing.
Items shown0
Lowest—
Highest—
Google Play does not publish per-purchase prices.