The Bible, with its sources
A Bible you can read whole. Explanations that show where they come from. Prayer shaped to the hour you are in. And an app that is calm on purpose: no feed, no streaks, nothing counted.
In testing on TestFlight today, App Store next. English, French, Spanish, Italian and German.
What Lumen does
Read
Three complete public-domain editions: the World English Bible, the Louis Segond 1910 and the Sainte Bible libre pour le monde. Every book of every tradition’s canon, on a reading page that holds nothing but the text.
Each book is verified against its checksum every time it is served, and when an edition cannot cover a book of your canon, Lumen names it rather than hiding it.
Understand
Layer by layer: what the text says, how Christian traditions read it, what historians argue. Every claim is bound to a source you can open from the page, and that binding is checked by machine before anything is published.
Where a layer does not exist yet, the app says so instead of filling the space.
Pray
Open Pray in the morning and it offers a morning arrangement; late at night, one made for the end of the day: psalms, canticles and the prayer Matthew records, drawn from your own edition. Or begin from where you are: gratitude, grief, a decision, someone else.
Lumen never writes a prayer for you, and never records one.
Learn
Short lessons and stories, written by people, reviewed before publication, and attributed line by line. Where traditions differ, Lumen shows the difference with its sources rather than choosing a side.
Nothing user-visible skips editorial review, and no lesson is generated.
The honest part
A reading app is also defined by what it will not do to keep you inside it.
Nothing is counted and nothing expires. You cannot break a chain, because there is no chain.
Lumen ends when your reading ends. There is nothing to scroll at the bottom of the page.
Your data is never sold and never used for advertising. This site keeps the same rule: no cookies, no trackers, nothing loaded from anyone else.
Prayer is never measured. Not as a policy, as a construction: the app’s measurement schema has no prayer event, so there is nothing it could send.
A language model is never the source of truth here. Scripture is never generated, and every material claim opens the document it stands on.
The text
Public domain, ingested with their provenance, verified against a checksum on every read.
English
81 books · 38,029 verses
A contemporary public-domain English translation, deuterocanonical books included.
French
66 books · 31,170 verses
The classic French translation, threaded with 18,983 cross-references.
French
81 books · 38,029 verses
A contemporary public-domain French translation carrying the deuterocanonical books.
Spanish
66 books · 31,084 verses
The classic Spanish Protestant translation, in the line of Casiodoro de Reina as revised by Cipriano de Valera.
Spanish
66 books · 31,102 verses
A contemporary public-domain Spanish translation.
Italian
66 books · 31,102 verses
Giovanni Luzzi’s revision, the Italian Protestant translation in common use before the modern versions.
German
66 books · 31,102 verses
The 1912 revision of Luther’s Bible, the German text of the Reformation tradition.
Reading orders served: Catholic, Orthodox, Anglican and Protestant. When an edition cannot cover a canon, the absent books are named instead of hidden.
Pricing
Free forever
Free is the product, not a trial. Scripture and its sourcing are never behind a price.
€49.99 a year
€4.17 a month, billed yearly
or €6.99 month to month
Depth costs editorial review, and charging for it is what funds the review that makes it trustworthy.
Subscriptions open with the App Store release, billed through the App Store.
Questions
Lumen is an iPhone app for reading the whole Bible, understanding it through explanations bound to named sources, and praying with the hour of the day. Its interface and its Bibles are in five languages, and it treats calm as a feature: no feed, no streaks, nothing counted.
Three complete public-domain editions: the World English Bible (81 books), the Louis Segond 1910 (66 books) and the Sainte Bible libre pour le monde (81 books). Each is ingested with its provenance and verified against a checksum every time a page is read.
The complete Bible in every canon is free, forever, with the reader, search, highlights, the daily reading and Understand with its sources. An optional Premium tier, €49.99 a year or €6.99 a month, adds premium Stories and courses, deep commentary and offline packs. If the price is an obstacle, ask and it is yours.
No. Lumen attributes rather than asserts: Christians believe, Catholic teaching holds, many historians argue. Where traditions read a passage differently, it shows the difference with sources instead of choosing a side, and it never presents theology as verified history.
From scripture itself. Each hour and each topic is an arrangement of psalms, canticles and passages, drawn from your own edition and offered rather than prescribed. Lumen never generates a prayer, and no model writes one.
No. Prayer carries no analytics at all: the measurement schema has no prayer event, so there is nothing to send. Measurement elsewhere in the app is off until you turn it on, and consent can be withdrawn at any time.
No. A language model is never the source of truth in Lumen. Scripture enters only through verified public-domain editions, explanations are written and reviewed by people, and a machine check refuses to publish any claim that does not open a source.
Lumen is in testing on TestFlight today and comes to the App Store next, first on iPhone, in five languages. Android follows the iPhone release.