---
title: "Oivalla: Master Any Topic - Reviews, Revenue and Downloads in Czechia | Apple App Store"
description: "Tired of reading articles, watching tutorials, and taking notes, only to forget everything a week later?  It's not your fault. Your brain mistakes familiarity for understanding. You read something, th"
---

# Oivalla: Master Any Topic — Czechia
> Lesson Built Around You

![Oivalla App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/7d/ac/b4/7dacb489-1431-54e7-2ea6-ee8d442492fd/AppIcon-0-0-1x_U007emarketing-0-11-0-85-220.png/434x0w.png)

**Developer:** [Invisible Hours UG (haftungsbeschrankt)](https://apptail.io/developer/invisible-hours-ug-haftungsbeschrankt-kNQtb)
**Category:** Education
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** app.oivalla.learnall
**Store:** Apple App Store
**Country:** Czechia
**Version:** 1.10.0 (released 2026-05-04)
**Original Release:** 2026-03-02
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/cz/app/app/id6759012740)
**AppTail Page:** [https://apptail.io/app/oivalla-master-any-topic-aOJy/czechia](https://apptail.io/app/oivalla-master-any-topic-aOJy/czechia)

## Oivalla Description
Tired of reading articles, watching tutorials, and taking notes, only to forget everything a week later?

It's not your fault. Your brain mistakes familiarity for understanding. You read something, think "yeah, I get this", and can't explain it an hour later. That's the fluency illusion, and every app that just shows you content makes it worse.

Oivalla fixes this. Type any topic, paste your notes, snap a photo, or drop a URL. Oivalla builds a personal course with micro-lessons and quizzes that prove real comprehension. You don't move on until you actually understand.

HOW IT WORKS
1. Type a topic, paste text, snap a photo, or share a URL
2. A quick diagnostic finds what you already know
3. Lessons explain concepts through analogies from your world
4. Quizzes prove you understand — with "here's why" feedback
5. New branches grow as your comprehension deepens

FITS YOUR LIFE
5, 10, 15, or 30-minute sessions. Learn on your commute, at lunch, or before bed. No rigid curriculum — learn what matters to you, when it matters.

WHY IT ACTUALLY WORKS
Your learning tree only grows when you prove comprehension. Every lesson adapts to your energy and what you already know. No wasted time. No fake progress.

No streaks. No badges. No illusions. Just the moment it actually clicks.

Free to try.

Questions? oivalla@invisiblehours.net
Privacy: 
Terms: 

## Oivalla Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ca/41/70/ca41706c-8869-fdf2-418e-bc6a7e87e120/01_paste_screen.png/1290x2796.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/98/fa/49/98fa49d6-b56d-e8fc-79f3-ecf240c6d2a9/02_knowledge_question.png/1290x2796.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/9e/9d/b3/9e9db38d-def7-d087-7f75-a7fbd4d33a7b/03_journey_plan.png/1290x2796.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f1/af/c3/f1afc342-f892-c101-7ef6-e58fc9921912/04_diagnostic_screen.png/1290x2796.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/47/b3/6a/47b36ac9-1cd8-7797-ec11-27bf0937c8d3/05_lesson_screen.png/1290x2796.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/7d/5d/27/7d5d2765-dab4-a5b2-2877-715e6efb4411/06_quiz_screen.png/1290x2796.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/dc/63/01/dc630181-a1da-367b-dd81-98f1f98b954a/07_celebration_screen.png/1290x2796.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/18/8f/bd/188fbdb9-596c-fc15-926c-4c0479b4625f/08_topic_list.png/1290x2796.png)



## Oivalla In-App Purchases
| Item | Price |
|------|-------|
| Yearly subscription | 2,790.00 č |
| Monthly Subscription | 499.00 č |




## Oivalla Available In
- [Czechia](https://apptail.io/app/oivalla-master-any-topic-aOJy/czechia)
- [Sweden](https://apptail.io/app/oivalla-master-any-topic-aOJy/sweden)
- [United States](https://apptail.io/app/oivalla-master-any-topic-aOJy/united-states)

---

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