CSS required

This page needs its stylesheet to be shown

The app listing, the version table and the download step are laid out by this site’s stylesheet. With stylesheets switched off, or blocked before they arrive, none of that layout exists, so the page is not shown.

Allow CSS for this site — including in any content blocker or privacy extension that may be stopping it — then reload the page.

APKCube

body > :not(noscript){display:none!important} #css-gate > *{display:none!important} body > noscript{display:flex;flex:1 1 auto;align-items:center;justify-content:center;padding:4rem 1rem} .nojs-card{width:100%;max-width:34rem;padding:2rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);color:var(--card-foreground)} .nojs-head{display:flex;align-items:center;gap:0.75rem} .nojs-mark{display:flex;flex:none;width:1.75rem;height:1.75rem;align-items:center;justify-content:center;border-radius:calc(var(--radius) * 0.6);background:var(--brand);color:var(--primary-foreground)} .nojs-mark svg{width:1rem;height:1rem} .nojs-eyebrow{margin:0;font-family:var(--font-mono),ui-monospace,monospace;font-size:0.6875rem;letter-spacing:0.06em;text-transform:uppercase;color:var(--muted-foreground)} .nojs-title{margin:1.5rem 0 0;font-family:var(--font-heading),ui-sans-serif,system-ui,sans-serif;font-size:1.5rem;font-weight:600;letter-spacing:-0.02em;line-height:1.25} .nojs-body{margin:0.75rem 0 0;font-size:0.9375rem;line-height:1.6;color:var(--ink-2)} .nojs-rule{margin:1.5rem 0 0;padding-top:1.25rem;border-top:1px solid var(--border)} .nojs-ip{display:none;margin:1rem 0 0;font-family:var(--font-mono),ui-monospace,monospace;font-size:0.75rem;line-height:1.5;color:var(--muted-foreground)}

JavaScript required

This page needs JavaScript to run

App listing, search, the download step are all handled by scripts in your browser. With JavaScript switched off none of them work, so the page is not shown.

Allow JavaScript for this site — including in any content blocker or privacy extension that may be stopping it — then reload the page.

This request reached us from .

Brain Test 4: Tricky Friends

Name: Brain Test 4: Tricky Friends
Author: Unico Studio

1.45.0

Play Protect

Unico Studio

4.6610M+ installs

Download APK

➤Brain Test 4 brings a cast of new characters, new customization mechanics, and the most importantly all-new brain teasers.

Brain Test 4: Tricky Friends, offline brain teaser puzzles

By Priya Raghavan

Senior reviews editor

Riddles and tricky tests that work without a wifi connection
A new cast of characters and new customization mechanics
All-new brain teasers, rebuilt on the original Brain Test formula
IQ tests and thinking games alongside the riddles
Part of a series that includes Brain Test 2 and Brain Test 3
Free to play, with Brain Test 5 announced for later

What Brain Test 4 is and who it suits

Brain Test 4 is a puzzle game built around riddles, brain teasers and tricky tests of reasoning. The listing presents it as a return to the basics of the first Brain Test: Tricky Puzzles, with a heavier dose of trickiness. It is aimed at people who like brain games and IQ-style tests and want something to work through on their own.

The listing calls it free to play. Its main draw is a steady run of puzzles, not a story to follow from start to finish.

What's new

Sep 15, 2026

Bug fixes and performance improvements.

About this APK

The build we hold is Brain Test 4: Tricky Friends 1.45.0 (APKS split bundle) for Android 7.0 and up.

Version: 1.45.0; 70
Requires Android: 7.0+
Target Android: 16

Package ID: com.unicostudio.braintest4
Format: APKS split bundle
Malware scan: Google Play Protect
Permissions: 21 declared
Signed by: CN=Android, O=Google Inc.
Certificate SHA-256: 7e945da5b7feea72aafac1bd878921bd0851da123f39fa75c8c0f0c4e7756808