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Three PeerScore app screens over a golden bell curve: home, an estimated IQ of 124 and the friends ranking

Case study · Games

PeerScore

A reasoning test turned into a game, with an Android app, an iOS app and a web version, and with the brand, the stores and the advertising in our hands.

A game with serious numbers

The project

PeerScore is a 40-question test of logic, numbers, letters and words. In under 20 minutes it gives you an estimated IQ and places you on the curve of everyone who has taken it before you.

Who's the smartest in the group? That's why you can challenge friends, family or colleagues and see your results side by side in a ranking. The apps are native, in Kotlin and SwiftUI, with our own server behind them.

Phone showing a PeerScore question in progress with its timer, over a golden bell curve

The starting point

The challenges.

What had to be solved before writing the first question.

  • The same game on Android, iOS and the web, with one account and one ranking
  • A question bank that doesn't run dry: retake the test and you shouldn't get the same questions
  • An honest estimated IQ, calculated from real players and explained without promising what it isn't
  • Passing Google Play and App Store review, which scrutinise anything that sounds like a health test
  • Being free and paid for by advertising, asking for consent wherever the law requires it

What we did

The solution.

One brand, three platforms and a game that learns from every round.

  1. A brand from scratch

    A golden bell curve with a dot marking where you stand. Midnight blue and gold, open-licence typefaces and an icon that looks the same in the store, on the phone and on the web. The visual identity is ours too.

  2. A test that calibrates itself

    40 questions from easiest to hardest, each with several versions and its own time limit. Answering fast scores more and skipping costs nothing. Every answer reaches the server and tells us which questions are too easy or too hard.

  3. Challenges that bring in players

    A challenge is an email with a link: it opens the app if you have it and the web if you don't. Your friend plays, shows up in your ranking and you come back to see who wins. No sign-up to start: the account comes when you want to keep your result or challenge someone.

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