Now on iPhone · Android coming soon

Eight arms.
A thousand facts.

1,400+ lessons across 29 topics, from Roman roads to compound interest. None of them run longer than 15 minutes.

Start with one fact →
Download on the App Store
No ads. No autoplay. Nothing built to keep you here longer than the lesson.
Facto — the Factopus octopus mascot in a graduation cap
5–15 minper lesson, start to finish
29topics, one app
1,400+lessons in the catalog
0ads, on any plan

Try one right now

Most people get this one wrong

Tap the card for the answer. Fair warning: you will repeat this one to someone today.

Fact of the day · Biology

An octopus has three hearts — and one of them stops beating at a very specific moment. When?

Tap to reveal

What's inside

Six things that make the five minutes work

No 12-week course to abandon in week two. One lesson, one quiz, and Facto handing you the next thing with whichever arm is free.

Never longer than 15 minutes

Long enough to teach one thing properly, short enough to finish on the train. Every lesson has an ending.

1,400+ lessons in the catalog,
5 to 15 minutes each

29 topics, one app

History, Psychology, Finance, Physics, Relationships, Art, and 23 more. Switch your mix whenever you want.

The Fact Feed

Swipeable cards, one fact each. The same thumb motion as the app you're trying to use less.

Quick quizzes

A few questions at the end of each lesson. Nothing is graded and nothing is shared. Getting one wrong is the part that sticks.

Streaks that stick

One reminder a day, a goal you set yourself, and an octopus that high-fives you with three arms at once. Miss a day and nothing bad happens.

Badges & deep dives

Finish a topic and its next level opens, with a badge to show for the work. The badges are more motivating than they have any right to be.

How it works

Three steps, then it runs itself

1

Pick your topics

Pick from 29: History, Finance, Psychology, Astronomy, and the rest. Change the mix whenever you want.

2

Learn in 5–15 minutes

One lesson a day, with worked examples and a short quiz at the end.

3

Keep going

The app remembers where you stopped and starts there tomorrow. A month in, that's about 30 lessons behind you.

Topics

Yes, dog training is in there

29 topics today, and the list keeps growing.

History Relationships Geography Physics Psychology Art Finance Biology
Communication Literature Nutrition & Health Astronomy Cinema Music Chemistry Dog Training

Inside the app

This is the whole app

Lessons, the Fact Feed, and your progress. That's all of it.

Factopus — a lesson screen with a worked example
Factopus — the daily progress screen with Facto
Factopus — global topics, short lessons, quizzes and the fact feed

Why Factopus

What we do differently

Most learning apps feel like homework you assigned yourself. This one is closer to the part of your phone you open without thinking.

CriterionFactopusOther apps
Lesson length✓5–15 min, always✗Often 30+ min chapters
Breadth✓29 topics in one app✗Usually one subject
Fact Feed✓Scroll that teaches✗Rarely offered
Ads✓Zero, ever✗Varies
Habit design✓Gentle streaks & goals✗Streak pressure
Personality✓A witty octopus✗Stock illustrations

Questions

Before you download

Factopus is free to download. Factopus Pro opens the full library of courses, lessons and facts. The price and any trial terms are shown in the app before you confirm anything.
5 to 15 minutes. Nothing in the catalog runs longer: if a topic needs more room, it gets split into two lessons.
Every lesson is written from published sources, checked before it ships, and ends with a quiz. If a sentence doesn't teach anything, it gets cut.
In about 20 seconds, directly with Apple or Google: on iPhone — Settings → your name → Subscriptions → Factopus → Cancel. On Android — Play Store → profile → Payments & subscriptions → Subscriptions → Factopus → Cancel. Bought on our website? Cancel at my.factopus.app. You keep access until the end of the paid period.
Like all App Store and Google Play subscriptions, Factopus Pro renews automatically unless you cancel at least 24 hours before the period ends. The renewal price and date are always visible in your store account settings.
Yes. You sign up with your email address when you first open the app. To sign in on another phone, enter your email and password; if you haven't set a password or forgot it, tap “Forgot your password?” and we email you a one-time code. There's no sign-in with Apple or Google. Your progress is saved to your account, so it follows you to a new phone.
The app holds only what it needs: your email address, your settings, and your progress. Passwords are stored only in hashed form, and you can delete your account in Settings whenever you want. There are no ads inside the app, and we never sell your data for money. We measure our own ads with AppsFlyer and Meta, using your device's advertising ID only if you allow tracking, and we keep usage statistics and crash reports. Payments go through Apple and Google, so your card details never reach us. Full details in our Privacy Policy.
It is made for readers of 13 and up. The tone is playful, but topics like finance, psychology, and history are written for teenagers and adults.
iPhone (iOS 16+) and Android (8.0+).

Facto has eight arms
and nothing to do

Free to download on iPhone. Pick a topic, tap one card, and decide for yourself whether five minutes a day is worth it.

Download on the App Store

The Android version is coming soon.

Free to download. Factopus Pro subscriptions are managed through your App Store or Google Play account — exact pricing and any free-trial terms are shown in the app, in your local currency, before you confirm anything. Cancel anytime. See our Terms and Privacy Policy.