Mind Reader: 21 Card Trick Android App
Perform the classic 21 card trick on your phone — think of a card, tap the pile it’s in three times, and watch Mind Reader reveal it. Free on Android.
Mind Reader by MaslonLabs brings the classic 21 card trick — a self-working card trick beloved by mentalists and magicians worldwide — straight to your phone. Think of a card, tap the pile it’s hiding in three times, and watch Mind Reader reveal it like a true illusionist.
How the Trick Works
Think of any card from a standard deck and remember it — don’t tell anyone which one it is. Mind Reader deals the cards into three piles; tap the pile that contains your card. Do this three times, and on the final reveal, Mind Reader names your exact card.
A Real Mentalist Classic, Reinvented
This isn’t a random-guess gimmick — the 21 card trick is a genuine, centuries-old self-working card trick built on simple math, the same one professional mentalists and magicians have performed for generations. Mind Reader handles the mechanics instantly, so you can focus on the presentation and the reaction on your friends’ faces.
Themes to Match the Moment
Choose from 4 elegant casino-style themes — Casino Green, Casino Navy, Casino Burgundy, and Onyx & Gold — so the trick looks as sharp as it feels.
Great For
- Parties and social gatherings
- Beginner magic and mentalism shows
- Family and friends game nights
- A quick, magical break during the day
Mind Reader vs. Learning the Trick Yourself
You can learn the 21 card trick with a physical deck — and it’s worth knowing (we break down exactly how the math works). But Mind Reader is ready in your pocket the moment inspiration strikes, with zero setup, no dealing three piles by hand, and no risk of miscounting mid-trick.
Why Choose Mind Reader by MaslonLabs
MaslonLabs built Mind Reader to be fast, polished, and genuinely surprising — open the app, and you have a ready-to-perform mentalism trick in seconds. It takes your privacy seriously too, with full GDPR compliance and a clear in-app privacy policy.
At a Glance
- The classic, self-working 21 card trick (11th card trick)
- 4 elegant casino-style themes
- Available in 12 languages
- Quick gameplay — the trick is ready in seconds
- Remove ads via subscription or lifetime purchase
- Watch a rewarded ad for 1 hour of ad-free play
- Made by MaslonLabs, an Android-focused app studio
Frequently Asked Questions
What is the 21 card trick?
The 21 card trick (also known as the 11th card trick) is a classic, self-working card trick beloved by mentalists and magicians. You think of a card, and after just three rounds of pointing to which pile it’s in, the performer (or in this case, the app) reveals it.
How does Mind Reader know my card?
Mind Reader uses the exact same time-tested method real mentalists have used for generations — no cameras, no tricks up its sleeve, just math. Curious how it actually works? Read our full breakdown of the math behind the 21 card trick.
Is Mind Reader free?
Yes, Mind Reader is free to download and play, with ads. You can remove ads with a subscription or one-time lifetime purchase, or watch a rewarded ad for an hour of ad-free play.
Does Mind Reader need an internet connection?
No, the trick itself runs entirely offline — perfect for parties, road trips, or anywhere without signal.
Which languages does Mind Reader support?
Mind Reader is available in 12 languages, so you can perform the trick in whichever language suits your audience.
Can I change how Mind Reader looks?
Yes, Mind Reader includes 4 casino-style themes — Casino Green, Casino Navy, Casino Burgundy, and Onyx & Gold — so you can match the mood of the moment.
Where can I download Mind Reader?
Mind Reader 21 Card Trick by MaslonLabs is available free on Google Play: Mind Reader on Google Play.