Bite-sized trivia for Android

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Get a fact instantly.

WonderBreak is built for short breaks: browse bite-sized facts, adjust genres and difficulty, and use read-aloud and auto-advance when you want hands-free playback.

On supported devices, on-device AI can generate additional trivia directly on the device.

View on Google Play Features

Make trivia fit your break

Start reading right away, then adjust only what you care about.

Built-in trivia

Browse bite-sized facts across 12 genres without having to write prompts.

Genre & difficulty controls

Change trivia level on the spot and block genres you do not want to see.

Read aloud & auto-advance

Keep trivia moving without constant tapping, including optional read-aloud playback.

Dive deeper

Open a longer explanation when a fact makes you want to know more.

History & favorites

Revisit facts later and filter your history down to favorites.

Community reactions

Mark a fact as “I knew this!” or “Interesting!” and see aggregate reactions.

On supported devices: on-device AI trivia

Where supported, generation runs on the Android device instead of sending every generation request to a developer-operated cloud AI service. Choose a genre and trivia level, then generate an additional fact on the device.

On-device AI

Designed for real app behavior, not just a demo

The app checks availability, handles generation failures and unstable output formats, and falls back to built-in trivia when needed.

Availability depends on the device, model, and environment. AI-generated content may contain errors.

Development note

Testing on a Pixel 9a outside the official support list

I documented a Developer Preview test where my Pixel 9a was able to generate from a custom app, along with the limitations and errors encountered. The article is in Japanese.

Read the technical note

App screenshots

These are the current screenshots used for the Google Play listing.

Long-term idea: a knowledge feed for you

Trivia is the first step. The longer-term idea is a personalized stream of trivia, general knowledge, and practical tips shaped around what each person is likely to enjoy and learn from.

View WonderBreak on Google Play

Open the app.Get a fact instantly.