21 Trainer

Name: 21 Trainer
Rating: 3.4 (20 reviews)
Author: Bulletproof Entertainment

By: Bulletproof Entertainment

Beat the man

Features & Capabilities

Want to learn how to count cards? This game will help you getting better and beat the game of blackjack.

Features:

Challenge yourself to count as many cards as possible in 30 seconds

User Growth & Download Statistics

App

By:

Bulletproof Entertainment

Rating:

3.40

(20)

Version:

1.0.15 Last updated: 2020-12-10

Version code:

839577278

Creation date:

2017-11-10

Compatible devices:

Size:

36.69MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-07

Compare stats and ranking:

Ranking

# 320,614 ▲ 892

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Bulletproof Entertainment

Apple Apps Store

https://apps.apple.com/us/app/21-trainer/id1309810444

User Reviews

Nice app with nice aesthetic but needs to be tested for bugs. There are lots of bugs and exact same cards shouldn’t be able to appear subsequently.

by Co*****, 2024-03-16

I wrote a counting practice program for the pc but purchased this because I’m not an iOS coder. I have 2 problems. First, sometimes it shows the same card twice. I thought i hadn’t advanced to the next card so tapped again to advance the card. Consequently my count was off. It shouldn’t show the same card twice. Second, I think it counts the last card before showing it. Since the time is up. It asks for the count and never does show the last card. This should be fixed. Otherwise it’s a great practice app.

by Lu*****, 2023-03-14

Not being able to see the last card on top after the thirty seconds is a HUGE problem. Often I will click for a new card as soon as the time is up and it takes the new card into account, even though I didn't see it, or if I did it was for a fraction of a second, ruining the test. Also not giving a sound que or visual que for a new card that is the same as the one before it often gets me mixed up because I think my tap didn't register leading me to skip a count.