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2,000 years of
Christian treasures.

Start a guided journey through the Bible — accompanied by over 120,000 commentaries and daily audio stories.
Dive into the most extensive digital library in Christendom.
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Illustration of Saint Olaf the Viking wearing a helmet and holding a cross, with a Nordic landscape and dragon ships in the background. Title: “Saint Olaf the Viking – A moving story of a Viking king who found Christ.”
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User interface of the Theosis app showing the section “Selected Works of the Week.” Displayed are portraits of holy fathers such as St. Ephraim the Syrian and St. John Chrysostom, along with the book cover “On the Fear of God.”
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Deutsche Bibelgesellschaft
+2,000 works
From Rome via Constantinople to Jerusalem
Hear with your heart

A handpicked audio production from the studio every week — perfect for quiet moments, on the go or before sleeping.

Five illustrated saints placed on colorful cards: St. Ephraim the Syrian, St. Olaf the Viking, Pope Zacharias, St. Mary of Egypt, and St. Alexander Schmorell.
A living library

New works by saints, thinkers and mystics every day. Sorted by topics that concern you: doubt, love, hope, grief, mercy. Like a living Insta story — but 2,000 years ago.

Three ornate book covers in the background, overlaid with portraits of four saintly authors: St. Ephraim the Syrian, St. John Chrysostom, St. Bede the Venerable, and Blessed Seraphim Rose.
Daily dose of wisdom

In just 3 minutes, you'll get insights that deepen your understanding of Christ and the Scriptures.

Audio feature with an icon of St. Ephraim the Syrian and the title “On the Fear of God.” Text excerpt: “A spiritual jewel from the 4th century...” Duration: 3 minutes.
Understand the Bible with 120,000 commentaries
Quote from the Gospel of John 1:1 overlaid on the background of a church: “In the beginning was the Word...” Below, a commentary by St. John Chrysostom on the divine inspiration of Scripture.

More than
just a Bible app

Theosis is not just a tool but a spiritual companion.
With daily audio formats, deep interpretations and hundreds of works by the great thinkers.
A Christian cosmos — handy, understandable, lively. Everything in one app.

Study with great thinkers.
Each Bible verse is accompanied by early Christians' interpretations — explained in an understandable way, at your own pace. No more guessing, no more googling, no more being alone with difficult passages.
Less scrolling. More meaning.
Daily impulses that should not be missing in any Christian library, instead of an endless timeline. No advertising, no distractions — food for the heart and mind.
An audio library in your pocket.
More than 2,000 works, many of them difficult to find or out of print. With just one click, you're right in the depths — from the Old Testament to modern saints.
from our community ❤️

App Store Reviews

5-stars
A must for every Christian

Every Christian should own this app!

App Store review
5-stars
Audiobooks that touch the heart

The audiobooks on Theosis are more than just texts — they speak directly to the soul.

App Store review
5-stars
Very happy

You have audiobooks from saints about their lives. You can be inspired by them and learn from them. No matter what kind of guy you are, this app will catch your attention.

Mustafa Aydin – Play Store
5-stars
It's finally here

I was so excited about this app — it helps me get closer to God every day. May God bless you!

App Store review
5-stars
Amazing

This app with all the exegeses on the individual verses from various centuries is a dream. It helps me a lot when studying the Bible and strengthens my faith.

Martin Obi – Play Store
5-stars
Wonderful! Hallelujah!

Glory to God for this app! I know it will take my Bible study to the highest level. Hallelujah!

App Store review
5-stars
That's exactly what I've been waiting for

I click on a verse — and immediately see the interpretation of the first Christians. I've wanted just that for years!

App Store review
1 red Star
Very bad!

Can't recommend ! Terrible !

— Satan

Understand the Bible — with a cloud of witnesses.

Every verse. Any question. Every doubt. You're never alone. The Theosis app shows you how church fathers, saints and church teachers understood the text — so that you really read the Bible and Understand it.

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2,000 years of Christian theology

Bible function with 120,000 commentaries

Excerpt from the Gospel of John, Chapter 1, with verse 1 highlighted.

Dive into the word

For many, the Bible is difficult to understand — full of profound texts, symbols, and historically and spiritually valuable stories. The wealth of meanings often remains hidden if you don't know the concepts and without guidance, you quickly feel overwhelmed. How are you really supposed to understand the Holy Scriptures when unfortunately they often only comprise a small part of our hectic everyday life.

With the first Christians

The first Christians drew their wisdom directly from the teaching of the Apostles and Sacred Scripture as handed down by the Church. Their interpretations remain an inexhaustible treasure of faith to this day.

In the Theosis app, you'll find comments from over 500 Saints and Church Fathers that help you see the Scriptures through their eyes. Learn how the first Christians understood and shared God's message, and let its depth and clarity guide you to experience the Bible in its original spiritual context.

Quote from the Gospel of John 1:1 overlaid on the background of a church: “In the beginning was the Word...” Below, a commentary by St. Ephraim the Syriac on the divine inspiration of Scripture.
Eine Illustrierte Bibel mit zwei Exegesen. Rechts eine von Athanasius dem Großen und die links eine von Hesychius von Jerusalem.

God's word in depth

The Bible is more than a book—it is the key to God's truth. But in order to truly grasp its depth, we need the guidance of the first Christians.

With the Theosis app, you get direct access to comments and interpretations that help you clearly see the meaning of each verse. You'll discover how Scripture can enrich your life and deepen your relationship with God. God's word comes alive, understandable and becomes a firm foundation of your faith.

FAQ

How does Theosis help me read the Bible?

You will not be left alone. Theosis offers you the Bible with over 120,000 commentaries, theological explanations and exegeses from the Church Fathers — available directly as you read. You understand what you read — step by step, guided and well-founded.

Isn't that complicated?

The app is designed to guide you — regardless of whether you're just starting out or are already deep into it.
Daily ideas, thematic introductions, explanations, recommendations: You don't have to search — Theosis is by your side.

I'm interested. How do I start?

Simply download the app, register — and get started.
You get a little impulse every day, you can discover your first audio story or simply start reading the guided Bible directly.

Is Theosis being developed?

Yes — new content and features are added every month.We work with theologians, clerics, artists, and designers to make the app more beautiful, clearer, and deeper. Theosis lives — like our faith.

What denomination is Theosis for?

For anyone who wants to deepen their Christian faith — regardless of denomination, previous knowledge or previous experience. Whether you want to understand the Bible better, are interested in the wisdom of the Church Fathers, or simply seek spiritual inspiration for your everyday life — Theosis accompanies you on your journey.

What is the “Daily dose of wisdom”?

These are daily, three-minute audio summaries of major theological works — written by saints, church fathers, or the first Christian thinkers. Ideal for everyday life: short, concise, deep.

What exactly can I find in the library?

A huge collection of spiritual and theological treasures:
Works about grief, doubt, love, hope — but also profound dogmatic texts, patristic literature, ascetic writings.
Sorted, filterable, prepared in a modern way — and often also available as audio.

Can I just listen to Theosis without reading?

Yes
A lot of content is available as high-quality audios:
The daily pearls, the weekly stories of saints, even entire theological works as an audio book. You decide how deep you want to dive — and when.

An illustrated Bible

Today is a good day for wisdom.

For 2,000 years, the Church has preserved a depth that our modern world has forgotten. With Theosis, you can rediscover it. Every day. At your own pace. With your heart.