Supported Features
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Dark Interface
DuoFacts: Fun Facts & Trivia
Learn Language with Flashcards
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Did you know octopuses have 3 hearts? Discover 1000+ mind-blowing facts in two languages — your daily brain snack that actually makes you smarter!
Did you know that octopuses have three hearts? Or that honey never expires, no matter how old it is? These are the kind of fascinating facts and random trivia that make you the most interesting conversationalist in any room.
DuoFacts is your daily dose of amazing knowledge delivered as bilingual flashcards. Discover mind-blowing facts from around the world while learning a new language effortlessly. Entertainment, education, and language learning, all packed into one app!
Turn every subway ride, coffee break, or bedtime scroll into a "Wow, I didn't know that!" moment.
LEARN A NEW LANGUAGE WITH BILINGUAL FUN FACTS
Forget boring textbooks! Every fun fact is displayed in two languages side by side. You'll naturally absorb vocabulary and improve reading comprehension without the pressure of "studying." Read a few facts every day and watch your language skills grow. It's the most fun and educational way to learn!
BITE-SIZED BRAIN FOOD: 30 SECONDS TO BLOW YOUR MIND
No long articles. No fluff. Every interesting fact is packed into a compact flashcard designed for the TikTok generation. Just 30 seconds to discover something new. Swipe, wow, repeat. That's microlearning done right.
EVERY FACT IS A MINI BRAIN TEASER
Think you know it all? Try DuoFacts! Each card feels like a brain teaser and a riddle for your brain. "Did you know that...?" will become your new favorite phrase. Fun facts sourced from thousands of verified references, curated to spark your curiosity every single day.
FACT OF THE DAY WIDGET
Bring random facts straight to your home screen! Customize fonts, wallpapers, and widget size to match your style. Every time you unlock your phone, you discover something fascinating. Your daily "Did you know?" notification, right on your screen.
THOUSANDS OF AMAZING FACTS TO EXPLORE
Never run out of icebreakers. Expand your general knowledge across these trivia categories:
- Psychology & Human Body: Mind-blowing facts about human behavior and the secrets of the brain.
- Science & Space: Black holes, quantum physics, and phenomena that will make you question reality.
- Weird History: Hidden events and ancient secrets they didn't teach you in school.
- Animals & Nature: Bizarre wildlife trivia that will leave you speechless.
- Life Hacks & Random Trivia: Clever tips and "Did you know" moments for everyday life.
- Creepy & Dark: Chilling facts and mysteries that feel like riddles waiting to be solved.
KEY FEATURES
+ Save your favorite facts into collections and challenge your friends with trivia.
+ Create stunning quote cards to share on Instagram Stories, TikTok, or iMessage.
+ Smart notifications to build a daily learning habit.
+ Smooth swipe interface, perfect for one-handed use on the go.
Download DuoFacts now! Get smarter every day, sharpen your language skills, and become the life of every conversation. A new brain teaser every day. Did you know what fascinating knowledge you'll discover today?
PREMIUM ACCESS
The app ships with a starter set of free categories you can enjoy forever.
Upgrade to Premium to unlock the full library, exclusive themes, and VIP features.
- Monthly plan
- Yearly plan (Best Value)
Privacy Policy: https://www.phamcham.dev/duofacts/policy
Terms of Use: https://www.phamcham.dev/duofacts/eula
Ratings & Reviews
Discover fascinating facts and expand your horizons!
What’s New
• We’ve updated and expanded our collection of mind-blowing facts.
• Performance improvements and minor bug squashing.
• I’m traveling the globe to keep gathering fresh knowledge just for you.
The developer, Trung Pham Quang, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Location
- Identifiers
- Usage Data
- Diagnostics
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Trung Pham Quang
- Size
- 82.7 MB
- Category
- Education
- Compatibility
Requires iOS 16 or later.
- iPhone
Requires iOS 16 or later. - iPad
Requires iPadOS 16 or later. - iPod touch
Requires iOS 16 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 10 more
- English, French, German, Indonesian, Japanese, Korean, Portuguese, Russian, Spanish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Yearly Subscription $14.99
- Lifetime Premium $39.99
- Monthly Subscription $3.99
- Copyright
- © PhamCham