Brainrot – Trendex

Skull IQ Test · Free on iOS

How brainrot are you? Take the Skull IQ quiz and find out.

Brainrot – Trendex is the brainrot quiz app that tests your internet knowledge — Gen Z slang, TikTok trends, memes, gaming and music — then ranks your Skull IQ on a worldwide leaderboard. Can't tell your gyat from your rizz? The built-in Trendex dictionary has you covered.

Download on theApp Store

Free download · Optional Brainrot Pro upgrade · Rated 12+ · iPhone & iPad, iOS 15.1+

Brainrot – Trendex home screen under the headline Test Your Skull IQ Daily: a Welcome, Michael Jordan greeting, a Test Your Knowledge row with the Quiz of the Day card Pre-TikTok Era Masters at 33 percent, a Slang of the Day entry for Skibidi with the example That's so skibidi, and a Top Players leaderboard.
The daily quiz, the slang of the day, and where you sit on the leaderboard.

Inside the app

What Trendex actually looks like

Screens straight from the App Store listing — the quiz library, the slang dictionary, and a timed round in progress.

  • Trendex's All Quizzes screen listing 26 total quizzes with category chips for Basics, Brainrot and Gaming and difficulty chips for Easy, Medium and Hard, above quiz cards for Pre-TikTok Era Masters at 33 percent complete, Old Internet vs New Internet, and Artist Culture & Fandoms.
    26 quizzes, sorted by categoryFilter by topic or difficulty, and pick up any quiz where you left off.
  • Trendex's slang dictionary under the headline Master Every Slang Term: a search field, alphabetical category chips, a Trending Now row with Skibidi and Brain Rot, and an All Terms list where Skibidi is defined as a nonsense word used for emphasis or randomness with the example That's so skibidi.
    The dictionary behind the quizEvery term gets a plain definition, a real example, and a trending flag.
  • A Trendex quiz in progress under the headline Race Against Time: question 1 of 4 with 1 minute 29 seconds left on the clock, asking what made the Renegade dance famous, with four lettered answers — going viral on TikTok, professional choreographer, music video appearance, and dance competition win.
    Answer before the clock doesQuick-fire rounds with instant feedback and a score that feeds your Skull IQ.

Why this exists

The internet moves fast. Your feed doesn't wait for you.

New slang, new memes, new sounds — every week. Either you know what's going on, or you're the one asking the group chat what "Ohio" means.

Sound familiar?

  • You hear terms like "gyat," "rizz," or "Ohio" and quietly nod along.
  • You scroll TikTok daily but can't name the trend you just watched.
  • You claim you're chronically online, with zero receipts to prove it.
  • You make content and need to actually understand what's trending — not guess.

What Trendex does about it

  • Quiz challenges across six categories test what you really know.
  • The Trendex dictionary explains every term with examples and usage guides.
  • Your Skull IQ score climbs through a ranking system as you play.
  • A worldwide leaderboard shows how you stack up against other terminally online users.

Features

Quiz challenge features that hit different

Everything below comes straight from the app — no filler.

Brain training quizzes

Fresh brainrot quiz content built around the latest internet trends, memes and Gen Z slang. Each challenge tests a different aspect of your online knowledge.

Skull IQ ranking

Take quizzes daily and watch your Skull IQ climb through the ranking system. Discover whether you're genuinely chronically online or just pretending.

Worldwide leaderboard

Compete with players around the world and see how your quiz scores stack up against other terminally online users.

Trendex dictionary

Your slang bible. Comprehensive explanations of internet slang — gyat, rizz, Ohio and beyond — with examples and usage guides, updated as language evolves.

Achievements & sharing

Unlock achievements as you play and share your Brainrot level with friends who think they know memes better than you.

Regular updates

New quiz content is added continuously, and the dictionary is updated with emerging slang based on the latest internet trends.

Categories

Six quiz categories, one Skull IQ

Every corner of internet culture gets its own quiz challenge category:

  • Gen Z Slang
  • TikTok Trends
  • Meme Knowledge
  • Internet Culture
  • Gaming References
  • Music & Artists

From classic rage comics to modern formats, viral dances and sounds, esports and streamer slang, to who's trending in music — deep cuts and niche references included.

How it works

Four steps to certified brainrot

  1. Take the quizzes

    Test your Skull IQ across the categories that match your corner of the internet.

  2. Learn the language

    Explore the Trendex dictionary to decode terms you missed and pick up new ones.

  3. Climb the leaderboard

    Consistent quiz games push your Skull IQ up the worldwide rankings.

  4. Flex your level

    Unlock achievements and share your Brainrot level with friends.

Brainrot Pro

Unlock your full potential

The free app has daily quiz limits. Brainrot Pro removes the ceiling:

Unlimited quiz games

No more daily limits — take as many brain training challenges as you want and accelerate your Skull IQ growth.

Advanced analytics

Deep dive into your quiz performance and spot your trending knowledge gaps.

Exclusive content

Premium quiz categories, plus early access to new challenges before they hit the general population.

Ad-free experience

Pure, uninterrupted sessions. Focus entirely on improving your Skull IQ without distractions.

Who it's for

More useful than it has any right to be

Brainrot quizzes are fun, but they're also a window into contemporary digital linguistics and cultural evolution. The app is a fit for:

Students

Stay current with internet culture — and with anyone studying modern communication, social media trends, or generational differences.

Content creators

Understand trending topics before you build content around them, instead of finding out a sound peaked three weeks ago.

Quiz competitors

Competitive quiz enthusiasts and brain training app collectors looking for something genuinely different from another sudoku clone.

FAQ

Questions people actually ask

Yes. Brainrot – Trendex is free on the App Store. An optional Brainrot Pro upgrade unlocks unlimited quiz games, advanced analytics, exclusive content categories, and an ad-free experience.

Skull IQ is the app's score for your internet knowledge. You take quiz challenges on slang, memes and trends, and your Skull IQ climbs through the app's ranking system as you play.

Six categories: Gen Z Slang, TikTok Trends, Meme Knowledge, Internet Culture, Gaming References, and Music & Artists. Each category tests a different corner of your online knowledge.

Trendex is the app's built-in slang dictionary. It explains internet slang terms like gyat, rizz and Ohio with examples and usage guides, and it's updated as new slang emerges.

The free version has daily quiz limits. Brainrot Pro removes them, so you can take as many brain training challenges as you want.

It is a universal iOS app for iPhone and iPad, requiring iOS 15.1 or later. It is rated 12+ and currently available in English. A Google Play version is not listed.

Yes. The developer regularly adds new quiz content and updates the Trendex dictionary with emerging slang based on the latest internet trends.

Guides

Go deeper into internet culture

Free, evergreen reading — whether or not you download the app.

What Is Brainrot? Meaning, Origins & the Word of the Year

Where the term came from, what it actually means, and why it went from insult to identity.

Gen Z Slang Explained: Rizz, Gyat, Ohio & How Slang Spreads

A plain-English guide to how internet slang works, why it changes so fast, and how to keep up.

What Is a Skull IQ? Measuring Internet Knowledge

Why "internet IQ" is a real kind of cultural literacy — and how quizzes turn it into a score.

How to Get Better at Internet Culture & Meme Quizzes

Practical strategies for improving trivia recall and climbing quiz leaderboards.

Your Skull IQ awaits.

Prove you're not just another normie. Download Brainrot – Trendex free on the App Store and find out how brainrot you really are.

Download on theApp Store

Brainrot responsibly.