Comparison

Immerse Research vs BTI Siddur

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Immerse Research

Create thematic compilations from a vast offline library of sacred texts. Annotate passages, build cross-references, and export your work. Share your collections with a community of readers or discover theirs.

Highlights
  • Offline library of 400+ sacred texts
  • Build thematic compilations with tags
  • Annotate passages and create cross-references
  • Export compilations to various formats
  • Share and discover community-created collections
  • Full-text search across all texts
  • Listen to passages read aloud
Features
Read full description

Immerse is a sacred-text reader built for research: read every tradition side by side, collect and annotate passages as you go, and turn them into organized, exportable compilations. It's an offline library of 400+ sacred texts — and a set of tools for building your own thematic compilations from across every tradition in it. BUILD COMPILATIONS Long-press any passage to select it, then add it to a compilation. Compilations are your collections: gather passages from the Qur'an, the Bible, the Upanishads, the Buddhist sutras, the Bahá'í writings and more under a single theme — Prayer, Justice, The Nature of the Soul. Your compilation grows one passage at a time, across every tradition in the library. ANNOTATE AS YOU READ Add notes to any selection. Create cross-references linking a passage in one book to a passage in another — the connections you notice, kept where you found them. When you build a cross-reference, tap Suggest a match to get AI-ranked related passages from across the whole library, each with a one-line reason. Everything anchors to the exact text you selected. EXPORT AND SHARE Export any compilation — or a set of cross-references, laid out side by side by tradition — as a Word document, PDF, spreadsheet, or Markdown file, complete with your notes. Or share your compilations or cross-references with a private link: anyone with the link can open them or save a copy into their own library. Ready to send, publish, or study from. A COMMUNITY OF READERS Make any compilation public and other readers can find it in Discover — preview its passages, then import the whole collection into your own library with one tap, and follow the readers whose work you want to keep up with. A living body of interfaith study, built by the people using it. THE LIBRARY 400+ complete sacred texts, all offline. Full-text search across every one of them at once — type a whole question and AI finds the passage that answers it, right alongside your keyword matches. Listen to any passage read aloud. Your reading position is saved automatically. Also available in Spanish, French, Persian, Chinese, Turkish, and Russian, with full right-to-left support for Persian. GUEST, NO ACCOUNT NEEDED Read and search the entire library offline, and share quotes. FREE WITH AN ACCOUNT • Compilations — group passages from across the library under your own themes • Notes — comment on any passage • Cross-references — link passages across the whole library • Suggest a match — AI-ranked related passages when you build a cross-reference • Quick compilation from search — add many passages to a compilation at once • Listen — tap the headphones to hear any passage read aloud • Daily Readings — follow a reading plan through any book, or get random verses from traditions you choose, with morning and evening reminders and a streak • Recently viewed — pick up where you left off • Export — compilations and cross-references as PDF, DOCX, CSV, or Markdown • Share links — send a compilation or cross-reference set by private link • Publish — make any compilation public for other readers to find • Discover — browse and import compilations other readers have published • Sync across all your devices IMMERSE PRO — $0.99/month, 30-day free trial Pro helps cover the running costs of the app. It adds: • AI summary — select a passage and get its meaning explained in the context of the book it comes from • Premium voices — natural, expressive narration for Listen, in your choice of voice • Import your own books — bring in EPUB, PDF, DOCX, or TXT files to read, search, and annotate* *Not every file imports cleanly. DOCX files with images or unusual formatting, and scanned (non-text) PDFs, may import unreliably or not at all.

About

BTI Siddur

Features
Read full description

The digital Siddur of Beit Tefilah Israeli — Hebrew, Phonetic, English, and Español, side by side or one at a time. What sets this siddur apart: it weaves traditional liturgy together with contemporary poetry, songs, prayers, and readings — a living prayer book, not a fixed one. New material is added every week, so the siddur keeps growing alongside the community. BTI Siddur brings the full prayer book to your phone, covering Shabbat services and holiday liturgy: search any prayer by title, keyword, theme, or occasion; save favorites and personal notes; adjust text size and switch between light and dark mode. Live Service Mode — the flagship feature: the service leader navigates, and every participant's screen follows automatically. No more "what page are we on?" — just scan a QR code and pray together. Free to use. No account required.

Screenshots

Immerse Research4 screens
BTI Siddur4 screens

Verdict

The call

The clearest difference is in-app purchases: BTI Siddur at none against Immerse Research's 1. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Immerse Research sells 1 in-app purchase, starting at $0.99 per month. BTI Siddur asks for nothing beyond the download.

Scorecard1 real difference · 9 level
Immerse Research versus BTI Siddur: the parameters behind the verdict, then further details
ParameterImmerse ResearchBTI Siddur
PriceFreeFree
Rating3.7 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size240 MB3 MB
Age rating4+4+
DeveloperShahrooz ShadbakhtBeit Tefilah Israeli

In-app purchases

1 purchases

Immerse Research

Subscriptions1
  • Pro$0.991 Month
None

BTI Siddur

No in-app purchases

Questions

Is Immerse Research free?
Immerse Research is free to download, with in-app purchases available.
Is BTI Siddur free?
BTI Siddur is free to download, with no in-app purchases.
Do Immerse Research or BTI Siddur have ads?
Neither Immerse Research nor BTI Siddur shows ads.

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