Study library or sermon companion
Logos is built so a student or preacher can study well. Lumin is built so a listener can still find last Sunday on Thursday.
The direct answer
Choose Logos if you want a Bible study platform for deep reading, original languages, commentaries, sermon prep, and a searchable library — including Study Assistant, which Logos describes as cited answers drawn from Logos resources. Choose Lumin if you use iPhone and iPad and the missing piece is last Sunday: a digest of the sermon you heard, cited passages, an Anchor, and a conversation for the week. Logos is the stronger research and teaching library. Lumin is the stronger companion for the listener after church.
Choose Lumin if
Choose Logos if
The Lumin side of the split
Logos is built as a Bible study, original languages, and sermon-prep platform. Lumin is built as a companion: cited answers, the sermon you heard, spoken prayer, and memory you keep. That is the job it wins.
A short, honest reply with the passage named so you can open the text yourself — plus one next step.
Record or import the sermon you heard. Keep takeaways, an Anchor, one practice, and a conversation you can reopen on Wednesday.
Guided prayer and prayer walks with your eyes at rest. The guide helps you begin. It does not pray for you.
Keep the prayers and reflections you want to return to. Mark a prayer answered. Clear the record anytime.
Side-by-side
Category-level contrast from public product pages, set next to what Lumin actually ships. This is not a scorecard, a ranking, or a review aggregate.
| Question | Logos | Lumin |
|---|---|---|
| What it is forWhat job is this app actually built to do? | Logos presents a Bible study platform: tools and a searchable library so people can study, preach, and teach with commentaries, original languages, and related books. | Lumin is Bible AI for iPhone and iPad that carries a sermon from Sunday into the week: a digest with takeaways, cited passages, an Anchor, one practice, and a conversation you can return to. |
| Sermon follow-throughWill this help me live the sermon I heard on Sunday? | Logos publicly emphasizes sermon prep for people who teach: templates, research, and a library in your pocket. That is preparing a message, not importing the sermon you heard last Sunday and carrying that specific message through the week as a listener. | Record or import a sermon you are allowed to use. Lumin builds a digest with takeaways and Scripture references, helps you choose an Anchor and one faithful next step, and lets you ask the sermon a question later in the week. |
| Cited ScriptureCan I see the passage and check it myself? | Logos is built so you can open the biblical text, original-language tools, and commentaries side by side. Study Assistant is described as composing answers from Logos resources with citations you can inspect. You should still read the passage in context. | Short answers name the passage so you can open the text yourself. A sermon digest lists the references it heard. Treat every generated explanation as a fallible aid, not the Bible. |
| PrayerHow does the app treat prayer? | Logos’s public study pages center on research, notes, guides, and a book library. They do not describe spoken guided prayer or prayer walks as a core product. | Spoken, guided prayer and prayer walks — eyes at rest, room for your own words — with morning, midday, and evening rhythms. AI can prompt and structure a moment. It cannot pray. |
| Memory and continuityWhat persists from one day to the next? | Notes, highlights, reading plans, and a synced library create a study habit. Continuity is “return to your books,” not “return to this Sunday’s sermon.” | Keep the prayers, answers, and reflections you deliberately save. Mark a prayer answered. Clear the record anytime. Memory is something you choose, not a feed that owns your week. |
| PlatformsWhere can I use it today? | Logos publishes a mobile app for iOS and Android, a web app, and desktop apps for Mac and Windows. | Currently iPhone and iPad on the Apple App Store. Android, desktop, and web access are not available today. |
| Spiritual-authority limitsDoes the tool claim a role it cannot hold? | Logos presents study tools and published Christian books, including AI features it says cite those resources. A library and an assistant still cannot replace a pastor who knows you or the gathered church. | AI is not God, a prophet, a pastor, or a substitute for church. Lumin assists with organizing, study, reflection, and questions. Scripture, conscience, pastoral care, and Christian community stay in their proper place. |
Read Lumin’s commitments:Lumin Covenant,what Christian AI is,how to choose a Christian AI app, andprivacy policy.
What the split actually is
Logos is a serious study platform: Greek and Hebrew, commentaries, guides, and a library that syncs across desktop, web, and mobile. Logos also describes Study Assistant as a conversational research tool that searches Logos resources and returns cited answers. That is a coherent product for people who study and teach.
Lumin is for a different chair in the room — the listener. After church, the need is often one thread from a real sermon, not another commentary. Record or import when you are allowed to, receive a digest with citations, choose an Anchor, and come back midweek. Keep Logos if you are building a library. Add Lumin if last Sunday keeps evaporating.
Public sources
Third-party claims on this page stay at what Logos publishes. We do not invent ratings, review counts, prices, or features.
A non-negotiable boundary
A library, a chatbot, a Bible reader, and a companion can each help a person begin. None of them can love you, bear responsibility for counsel, gather around a table, or replace Scripture read in context.
If an app starts competing with those things, it is occupying the wrong place — Lumin included.
Questions people ask
Use Logos to study, prep, and search a Christian book library. Use Lumin on iPhone and iPad to carry a specific sermon into the week. Many teachers should keep Logos and still want a listener companion.
Not as a research library. Lumin does not try to replace commentaries, original-language tools, or sermon-prep workflows. It is an alternative only for sermon follow-through, cited answers, and spoken prayer.
Logos’s public pages describe tools for studying Scripture and preparing to preach. They do not describe importing the message you heard last Sunday as a personal week-long digest.
Logos describes Study Assistant as research against Logos resources. Lumin is built around the sermon you heard, a visible Bible reference, and a practice for the week. Different jobs. Neither AI is a pastor.
No. Lumin is currently available for iPhone and iPad. Logos is the broader-platform study suite.
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Try the Lumin side of the split
If you want cited Scripture, a sermon that lasts the week, and prayer you actually do — on iPhone and iPad — try Lumin with a real question or Sunday. Check the passage. Decide whether it belongs in your week.
