Blackjack Jack's 21

Developer: FATHOM

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635 installs

Ratings not yet available

41 monthly active users

Revenue not available

Install Trends

Weekly +1.00

Steady

Monthly +2.00

Steady

Blackjack Jack's 21 Summary

Blackjack Jack's 21 is a mobile Android app in Card by FATHOM. Released in Apr 2022 (4 years ago). It has about 635+ installs Based on AppGoblin estimates, it reaches roughly 41 monthly active users . Store last updated May 20, 2026

Recent activity: 1.00 installs this week (2.00 over 4 weeks) showing below average growth View trends →

Blackjack Jack's 21 SDKs Summary

App not yet scanned for SDKs.

App Details

Store ID: com.fathom.jacks21

First Released: 2022-04-25

Store Last Updated: 2026-05-20

App Store Category: Games: Card

In-App Purchases: No

Ads: No

Website: jacks.stars.ne.jp

App Store

Crawl Status: Success

AppGoblin First Crawled: 2026-03-28

AppGoblin Last Crawled: 2026-07-08

Ads & App-Ads.txt

App does not have ads.

0★

Ratings: 0

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Screenshots

App Description

Simplest card game with 3D character.

Jack's 21 is a cafe restaurant in the corner of the city.
One day, the owner of the cafe found a casino table at an antique store.
Her daughter Marine plays card games only when she feels like it.

Rules of this game are well known.
You can play simplest game in the mordern fantasy world.

AI chat functionality has been added.