Brain Test 4: Tricky Friends

Review by eFreeware

The most distinctive thing about Brain Test 4 is that it is not really a quiz. It is a puzzle game where the answer is rarely the obvious one, and the joke is often that you fell for the obvious one. Unico Studio has built the whole thing around that idea, with a cast of animated characters and a club system that ties the levels together.

It is pitched at people who already know this format. The developer describes it as a game for Brain Test veterans looking for tougher tricks, which tells you the intended audience fairly precisely: players who have worked through earlier entries in the series and want more of the same, rather than newcomers hoping for a gentle introduction to logic puzzles.

The numbers back up that this is not a niche experiment. It has passed 10 million installs and holds a 4.7 average from more than 200,000 ratings, and it has been updated as recently as September 2026, with the level count now sitting at 600. That combination of scale and ongoing updates is worth noting if you are deciding whether to commit time to it.

How the trick puzzles actually work

Every level presents a small scene and a question, and the solution almost never follows from reading the question literally. You are meant to poke at the screen, drag things around, and generally distrust what you are shown. The developer's own framing is that nothing is as it seems, which is a fair summary of the design philosophy.

What keeps this from becoming frustrating is the hint system. The developer calls the hint system thorough, and having help available changes the character of the game considerably: you can sit with a puzzle for a while, then get a nudge rather than abandoning the level entirely. For a game built on deliberately unfair-seeming answers, that matters.

The presentation leans on animated characters in the same art style the series is known for, along with dialogue and short story beats between puzzles. It is a light layer rather than a narrative you follow closely, but it gives the levels a bit of personality beyond a bare question and answer.

Tricky Club, customization and the level supply

Progression runs through a Tricky Club system, where characters can be unlocked as you go. The cast includes figures such as Tricky Lily and Astrodog. Alongside that, there are customization options for both characters and environments, so the look of the game can be adjusted as you progress rather than staying fixed.

The level count is the headline figure here. A recent update added 50 new levels across all languages, bringing the total to 600. The developer also promises ongoing level updates, which is the main reason a puzzle game like this stays installed rather than being deleted once you run out of content.

I would treat the club and customization layer as a secondary draw rather than the point of the game. The puzzles are the reason to play; the unlockables give you something to work toward between them.

What the free download includes

Brain Test 4 is free to download and free to play, and it carries both advertising and in-app purchases. That is the standard arrangement for a game of this size, and it is worth knowing before you start rather than discovering partway through.

The game is completely free to download and play. If you prefer to avoid ads and purchases entirely, that is a consideration.

Offline play and one-handed sessions

Two practical details stand out. The game can be played offline and without an internet connection, which the developer repeats more than once, and it is designed to be playable with one hand. Those two things together make it unusually easy to fit into odd moments, whether that is a wait at a doctor's office or a few minutes before bed.

The offline support is a genuine advantage for a puzzle game. You are not dependent on a connection holding up while you stare at a level.

The one-handed design is a smaller point but a real one. It means the game works when you only have one hand free.

Family friendly, and genuinely so

The content rating is Everyone, and the gameplay is family friendly and safe for all ages. The humor is dialogue-based and the visuals are cartoonish.

That said, the puzzles themselves are not childish. The tricks require a certain amount of lateral thinking, and the developer explicitly targets veterans of the series. A child can enjoy the scenes and the characters, while an adult gets the satisfaction of actually being stumped.

It is also a reasonable game to play alongside someone else. The game is meant to be enjoyed with friends, and the format lends itself to passing a device back and forth when a level refuses to give up its answer.

Who this puzzle game suits

The clearest fit is someone who has already played earlier Brain Test titles and wants more of the same with a fresh set of tricks. The developer's framing of the game as being for veterans is honest, and the back-to-basics approach means the formula is familiar rather than reinvented.

It also suits anyone who wants a large, offline-capable puzzle game with a hint system to fall back on. The combination of 600 levels, regular updates and no connection requirement makes it easy to keep around for a long time.

If you are looking for a straightforward quiz or a logic game with clearly stated rules, this is a different sort of thing. The appeal here is specifically in being misled and then working out why.

A large, tricky puzzle library worth keeping installed

Brain Test 4 does one thing and does it at scale: hundreds of trick puzzles with animated characters, a club system to unlock, and a hint system for when a level wins. The 4.7 average from over 200,000 ratings suggests that approach lands with the audience it is aimed at, and the ongoing updates mean the library keeps growing.

The free download comes with ads and in-app purchases. If those do not bother you, and you enjoy puzzles that reward suspicion over knowledge, this is an easy recommendation for anyone who liked the earlier entries in the series. If you want a puzzle game that plays fair and tells you the rules, the deliberate trickery here is the whole point, and you should weigh that before installing.

What's new in version 1.39.0

50 brand-new levels are here in all languages! Brain Test 4 now features 600 levels packed with tricky puzzles and unexpected challenges. Update now and put your brain to the test!