Blackjack 21: online casino

Name: Blackjack 21: online casino
Rating: 4.5882354 (4830 reviews)
Author: CYBERNAUTICA

CYBERNAUTICA

★ 4.6 (4,830 ratings)

⬇ 500,000+ downloads

Est. actual: 790,144

Style: Casino

Free

Released: Jul 12, 2018

IAP: $0.99 - $109.99 per item

Contains ads

Rated: Teen

Mechanics Casino, slots & bingo

Signals

4 this week · 2 positive · 1 warning All of this week's signals →

📈Last 7 days +1.2K installs — 47% slower than the week before (+2.3K) · 299/day since Sep 18
🏆Among Casino games top 11% by installs gained this week (6169 peers growing)
⭐Rating steady at ★ 4.59 since Sep 18
🛠Updates actively updated · updated 20 days ago · every ~112 days (2 updates tracked)

Installs since launch

+13,151 installs · +64 ratings since Sep 18

SDKs in the app · version 5.6, analysed Oct 28, 2026

Ad mediationAppLovin MAX
Ad networkAppLovin SDK DT Exchange (Fyber)Google Mobile Ads (AdMob)InMobi Liftoff Monetize (Vungle) 7.7.4 Meta Audience Network 6.22.0 Mintegral Pangle 8.3.0.4 Unity Ads 4.20.1
AnalyticsFirebase Analytics 23.2.0
AttributionFacebook App Events 18.3.0 Singular TikTok Business SDK 1.6.1
BackendFirebase Authentication 24.2.0 Firebase Realtime Database
ConsentGoogle User Messaging Platform 4.0.0
Crash reportingFirebase Crashlytics
Engagement & messagingPlay In-App Review 2.0.2
Game engineUnity (engine)
PaymentsPlay Billing Library 9.0.0
Remote configFirebase Remote Config 23.1.0
SecurityPlay Integrity API 1.3.0
Social & loginFacebook Gaming Services Facebook Login Facebook SDK (core) 18.3.0 Facebook Share Google Sign-In 20.7.0

9 mediation adapters

Adapters connect a mediation SDK to an ad network. An adapter alone does not mean the network’s own SDK is bundled.

AdMob mediation adapter → pangle 8.3.0.4.0AdMob mediation adapter → vungleAdMob mediation adapter → vungle 6.22.0.1AdMob mediation adapter → vungle 8.4.7.1AdMob mediation adapter → vungle 11.4.1.2AdMob mediation adapter → vungle 17.1.81.1AdMob mediation adapter → vungle 4.20.1.0AdMob mediation adapter → vungleAppLovin MAX adapter → UnityAds

Found by static analysis of the app package; bundled is not the same as active. All SDKs →

Update history

5.6 Oct 13, 2026 · seen Oct 16, 2026

Enjoy popular free blackjack and other casino games right here.<br>Playing online blackjack for free also helps you to develop your strategy without risking your own cash.

5.5 Jun 24, 2026 · seen Sep 18, 2026

Enjoy popular free blackjack and other casino games right here.<br>Playing online blackjack for free also helps you to develop your strategy without risking your own cash.

Blackjack 21: online casino is a casino game by CYBERNAUTICA with 500,000+ downloads (about 790K estimated). +1.2K installs in the last 7 days. Rated 4.6 from 4.8K ratings. Released Jul 12, 2018. Install growth, rank history, SDKs and ad networks.

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