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TheoriePass — actual app screen in German and Persian
TheoriePass — actual app screen in German
↗The first step: TheoriePassGerman theory. Persian support.
DE + فارسی
Built with purposeDesigned with careMoving forward, step by step

FROM IDEA TO APP

For your next step.

01 — 02
OUR FIRST APP

TheoriePass↗

Driving theory you really understand.

Prepare for the German driving theory test. Learn entirely in German, or with Persian translations and explanations alongside the original text.

German & Persian30 free questionsNo ads
Discover TheoriePass

iOS launch in preparation · Android coming later

TheoriePass — actual app screen in German
Your progress starts here.
ON THE DRAWING BOARD · COMING SOON

German for real life.

Our next idea: learning German with Persian support. Words, sentences and small steps that make a difference in everyday life.

A small concept demo. This app has not been released, and there is no launch date yet.

Try a word →
An idea to explore01 / 03
EVERYDAY GERMAN

der Anfang

Jeder Tag ist ein neuer Anfang.

THE STUDIO BEHIND THE APPS

From a real need
to a useful app.

I’m Mojtaba Jafari. ZenithStack.dev is the home of my personal ideas and independent apps: products with a clear purpose and care for the details you notice every day.

TheoriePass is the first step. More ideas will find a home here, one at a time.

Have an idea or feedback?
MJMojtaba JafariDeveloper behind ZenithStack.dev