# HeyReader: Book Assistant — Define terms while reading

> Define terms while reading (iPhone/iPad app by Roshan Gill.)

- Source: https://appshunter.io/ios/app/heyreader-book-assistant/id6790931871 (this page in markdown: same URL + `.md`)
- Developer: [Roshan Gill](https://appshunter.io/developer/1773419310)
- Category: Productivity, Books
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 17 MB
- Released: 2026-07-22
- Data updated: 2026-09-02
- User reviews in markdown: https://appshunter.io/ios/app/heyreader-book-assistant/id6790931871/reviews.md

## What is HeyReader?

While reading your physical book, ask HeyReader about any term you don't understand, and it answers out loud. 

That way you stay focused on the page.

Using HeyReader:
1. Upload the PDF of your book
2. Pick up the physical copy and start reading
3. Whisper "Hey Reader" to ask questions, and hear answers

*Answers come directly from the book’s pages.

New terms or unknown symbols in your book send you to ChatGPT on your phone. Every switch makes it less likely you come back.
(According to Microsoft and UC Irvine researchers, "it takes 23 minutes to resume an interrupted task”.¹)

Answered questions from real sessions:
“In Chapter 3, define a stack trace." - Pragmatic Programmer
"Define analogous, Chapter 1." - Deep Learning
"What's the name for the symbol that looks like a U in chapter 8?" - Deep Learning

Terms of Use: https://tryreader.app/terms
Privacy Policy: https://tryreader.app/privacy
License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

¹ (Mark et al., CSCW 2015)


## Version history (last 5 releases)

### 1.23 — 2026-09-01

Updated screenshots.

### 1.21 — 2026-08-30

Updated screenshots

### 1.2 — 2026-08-24

Improved voice. Reading sessions tracked. UI/UX updates.

### 1.1 — 2026-08-13

Assistant responses improved. UI/UX cleaned up. Payment processing added.

### 1.0 — 2026-07-23

No release notes.

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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 2026-09-02.*