21 Blitz is made and published by Tether Studios LLC. AppBrain is an independent app data site and isn't affiliated with Tether Studios LLC. The app name, icon, screenshots and description belong to Tether Studios LLC and are shown as published on Google Play.
AppBrain's verdict
Established- Total installs
- 210 thousand
- Rating on Google Play
- 3.64
- 565 ratings
- Last updated
- July 31, 2026
21 Blitz has 210 thousand installs. Users are divided: 3.6 stars from 565 ratings.
Installs
Tracked by AppBrain- Last 30 days
- 690
- Per day
- 23
- 30-day average
- Play install range
- 100+ thousand
- Launched
- April 2021
Installs over time
21 Blitz has been installed 210 thousand times. Over the past 30 days, it averaged 23 installs per day.
Rankings
Google Play top chartsGoogle Play Rankings for 21 Blitz
Competitors
Similar apps and more from Tether Studios LLCAlternatives to 21 Blitz
More from Tether Studios LLC
Releases
Updates seen on Google Play- Version
- 1.53
- Launched
- April 2021
User feedback
Ratings and reviews on Google PlayGoogle Play Rating history and histogram
Comments on 21 Blitz for Android
Technology
Found in the app by AppBrain- Ads
- Contains ads
- Price
- Free
- Libraries
- 29
- App size
- 171.9 MB
- Needs Android
- 6.0+
- Content rating
- Everyone
Technologies used by 21 Blitz
About the app and developer
About 21 Blitz
21 Blitz is a card app developed by Tether Studios LLC.
Install Statistics
21 Blitz has been installed 210 thousand times. In the last 30 days, the app was installed 690 times.
User Ratings
21 Blitz is rated 3.64 out of 5 stars. The rating is based on 570 ratings.
App Information
21 Blitz is freely available from Google Play. The app size is 171.85 MB. The latest version available is 1.53. The last update was on July 31, 2026.
Technical Requirements
21 Blitz requires Android 6.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since April 2021.
App Performance Report
Get a detailed PDF report for 21 Blitz with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more
Get PDF Report — $29Developer information for Tether Studios LLC
Store listing
By Tether Studios LLC, from Google Play“Practice your classic Blackjack skills in a modern version of the card game.”
Description by Tether Studios LLC Written by the developer, not by AppBrain. Click to read.
21 Blitz blends blackjack strategy with quick thinking in a fast-paced race for the highest score. Every match challenges you to build 21s, create scoring streaks, and outplay your opponents before time runs out. Every decision matters as you balance speed and strategy.
How to Play
Build 21s and 5-card stacks for big points while managing all four hands at once. Clear stacks back-to-back to earn streak bonuses and keep track of the cards in the full deck to maximize your score.
Compete with Friends
Invite your friends, compete head-to-head, and see who can claim the top spot. Every game uses a full deck, rewarding smart decisions, careful card tracking, and skilled play.
Why You'll Love 21 Blitz
- Fast-paced competition
- Head-to-head matches with friends
- Strategic card tracking
- Rewarding streak bonuses
Download 21 Blitz today and see if you have what it takes to come out on top.
Recent changes:
Bug fixes and optimizations.