IRIScan Book vs HeyReader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IRIScan Book
Wirelessly transfer scanned documents from a portable scanner to your iOS devices. Capture pages from books and magazines without damaging them, saving scans to a MicroSD card for easy transfer.
- Wireless document transfer
- Scan books and magazines
- Save scans to MicroSD
- Transfer to iPad/iPhone
- Portable scanner integration
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IRIScan™ Book App allows you to transfer your scaned documents via Wifi from your IRIScan™ Book Executive 3 portable scanner to your iPad®, iPhone®. IRIScan™ Book Executive 3 is a portable scanner that allows you to scan books and magazines anytime, anywhere and without ripping pages off. Simply roll your way across the document, and your scan will be saved automatically onto the MicroSD™ card and ready to be transferred via Wifi to your iPad®, iPhone®.
HeyReader
This app provides an audio assistant for physical books. Upload the book's PDF, and then ask questions aloud about terms or concepts. The app searches your book and speaks the answers, helping you stay focused on reading.
- Voice-activated questions
- Answers read aloud
- Searches book PDF
- Focuses on physical reading
- Requires book PDF
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While reading your physical book, ask HeyReader about any term you don't understand, and it answers aloud. That way your focus stays on the page. Best with Meta Ray-Bans. Any Bluetooth headphones work too. Using HeyReader: 1. Upload PDF 2. Start reading your physical copy 3. Say "Hey Reader" to ask questions and hear answers What you need: 1. Physical book 2. PDF version of the same book 3. Meta Ray-Bans, or any Bluetooth headphones *The assistant searches the book PDF for citation backed answers. New terms in your book send you to ChatGPT or Google on your phone. Every switch over makes it less likely you come back to the reading. (According to Microsoft and UC Irvine researchers, "it takes 23 minutes to resume an interrupted task”.¹) Keep your 23 minutes -- HeyReader searches the book and answers by voice, so your focus stays on the page. 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)
Screenshots
Verdict
The clearest difference is review sentiment: HeyReader at 100% against IRIScan Book's 0%. HeyReader also leads on rating (5.0 vs 1.0) and update cadence (weekly vs every 30 months). IRIScan Book's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On price and ads 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
Both are free to download. HeyReader sells 2 in-app purchases, starting at $6.99 per month. IRIScan Book asks for nothing beyond the download.
HeyReader holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 0% of IRIScan Book's written reviews are positive against 100% of HeyReader's.
IRIScan Book ships an update every 30 months, HeyReader weekly. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.
| Parameter | IRIScan Book | HeyReader |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 30 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 6.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 5 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | I.R.I.S. s.a. | Roshan Gill |
Customer experience
IRIScan Book
HeyReader
In-app purchases
IRIScan Book
No in-app purchases
HeyReader
- Pro Monthly$6.991 Month
- Pro Annual$62.991 Year





