IRIScan Book vs Slit
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®.
Slit
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Read articles faster with RSVP (Rapid Serial Visual Presentation) — a word-by-word speed reading method that eliminates eye movement and keeps you focused. Import articles from any app using the iOS Share extension or paste a URL directly. Slit extracts the article content automatically and presents it one word at a time at 300 words per minute with intelligent pacing that adjusts for word length, punctuation, and reading flow. Key features: - Share extension for one-tap import from Safari and other apps - Smart content extraction that pulls clean article text from web pages - Dynamic pacing for comfortable reading - Automatic progress tracking with resume from where you left off - Full-screen, distraction-free reading experience - Gesture-based controls — tap to play/pause - Offline reading — articles are stored locally on your device - No accounts or subscriptions required
Screenshots
Verdict
The clearest difference is update cadence: Slit at every 2 months against IRIScan Book's every 30 months. IRIScan Book's advantage is device support (3 vs 1) and iOS requirement (6.0 vs 26.2). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
IRIScan Book ships an update every 30 months, Slit every 2 months. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | IRIScan Book | Slit |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 30 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 6.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 5 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | I.R.I.S. s.a. | Timur Badretdinov |
In-app purchases
IRIScan Book
No in-app purchases
Slit
No in-app purchases
