# CorpusKit Reader — Ask & search corpora, offline

> Ask & search corpora, offline (iPhone/iPad app by Robert Roy.)

- Source: https://appshunter.io/ios/app/corpuskit-reader/id6783911660 (this page in markdown: same URL + `.md`)
- Developer: [Robert Roy](https://appshunter.io/developer/1870972492)
- Category: Books, Reference
- Price: $1.99
- Age rating: 12+
- Requires: iOS 26.0 · 427 MB
- Languages: American English
- Released: 2026-07-14
- Data updated: 2026-08-14
- User reviews in markdown: https://appshunter.io/ios/app/corpuskit-reader/id6783911660/reviews.md

## What is CorpusKit Reader?

Open a .corpus bundle and ask it anything. CorpusKit Reader turns a body of text into fast, private, semantic search — and, on supported devices, grounded answers written entirely on-device.

Universal — one purchase covers Mac, iPad, and iPhone.

WHAT IT DOES

Ask in Plain Language
Type a question and CorpusKit Reader retrieves the passages that actually answer it — by meaning, not just keywords. On devices with Apple Intelligence, it then writes a short answer grounded only in those passages (retrieval-augmented generation). Without it, you still get the most relevant passages, ranked.

Read in Context
Browse the source by chapter, and jump from any answer straight to the passage in the text. Save passages you want to keep and return to them anytime.

Bring Your Own Corpora
Open any .corpus bundle from Files or iCloud Drive, or one made with CorpusKit Studio. Sample corpora are built in, and more free corpora are available from the in-app catalog.

PRIVATE BY DESIGN

Everything runs on your device. There is no account, no analytics, and no tracking, and search and answers work fully offline — nothing you read or ask leaves your device. (Optional links to an online help guide and corpus catalog open in your browser.)

WHO IT'S FOR

Readers, students, and researchers who want to search and question a book, a manual, or a collection of documents — privately, and without a connection.

One-time purchase. No subscription.

Requires iOS 26 or macOS 15.6 or later.


## Version history (last 1 release)

### 1.0 — 2026-07-14

No release notes.

## More apps by Robert Roy

- [Time Stamp Adder: Video Date](https://appshunter.io/ios/app/time-stamp-adder-video-date/id6758112121)
- [12 and 12 · Recovery Widgets](https://appshunter.io/ios/app/12-and-12-recovery-widgets/id6758464299)
- [Evidr](https://appshunter.io/ios/app/evidr/id6759003012)
- [BigBookViaLLM](https://appshunter.io/ios/app/bigbookviallm/id6762199410)
- [CorpusKit Studio](https://appshunter.io/ios/app/corpuskit-studio/id6762568921)

All apps by Robert Roy: https://appshunter.io/developer/1870972492

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*