ReadLevel AI vs Linea Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReadLevel AI
Instantly determine a book's reading level by scanning any page with advanced AI. Get age range, grade level, and language-specific scores for any text, even without a barcode or ISBN. Works offline with foreign language books and digital displays.
- AI-powered text analysis
- Instant reading level determination
- Supports age range and grade level
- Foreign language reading level scores
- Works without ISBN or barcodes
- Scans digital displays and photocopies
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This app analyzes any page from a book and instantly determines its reading level using advanced AI technology. Simply point your camera at a page of text, and get comprehensive reading level information including age range, grade level, English Lexile score, and foreign language reading levels. Unlike barcode scanning apps that require the book's ISBN and internet lookup, this app analyzes the actual text content. This means it works with: • Library books without visible barcodes • Old books or books with damaged covers • Photocopied pages or digital displays • Books without ISBN numbers • Foreign language books Our AI analyzes text complexity, vocabulary difficulty, sentence structure, and content sophistication to provide accurate reading levels. The analysis happens instantly with results in seconds. Get three standardized reading level formats: • Age Range (e.g., 8-10 years) • Grade Level (3rd grade) • Language Specific Reading Level (Lexile, HSK, CEFR, etc.) Need Help? Want to send feedback? Please contact our support at readlevelapp@gmail.com! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Linea Reader
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Linea is a calm reading workspace for difficult material. Import PDFs, EPUBs, MOBI files, DOCX documents, Markdown, images, scans, and web pages. Read with thoughtful typography, highlight and annotate passages, listen from your current position, and ask questions without losing your place. Your library stays organized around the work in front of you. Resume where you stopped, move between chapters, and keep your reading progress together. Features: • Import documents and URLs • Read PDFs, ebooks, Markdown, and more • Highlight passages and add notes • Listen from your current reading position • Ask document-aware questions while reading or listening • Keep reading progress and annotations together • Choose from four reading palettes AI and your data: Linea uses AI only when you ask it to. It does not run your documents through AI in the background. Eligible signed-in Linea accounts can use Linea's rate-limited managed Ask without a personal API key: the question and relevant document context are processed by Linea, which may call an upstream model. For a user-owned cloud provider, Linea sends your question and relevant document context directly from your device to that provider using the API key you supplied; Linea's developer does not receive those direct-to-provider requests. When available and selected, on-device Apple Intelligence requests stay on your device. Linea is built for sustained attention: fewer distractions, better context, and a clear path back to the thread.
Screenshots
Verdict
The clearest difference is in-app purchases: Linea Reader at none against ReadLevel AI's 3. Linea Reader also leads on update cadence (every 4 weeks vs every 4 months). ReadLevel AI's advantage is iOS requirement (16.0 vs 26.0). On price, ads and device support 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. ReadLevel AI sells 3 in-app purchases, starting at $2.99 per month. Linea Reader asks for nothing beyond the download.
ReadLevel AI ships an update every 4 months, Linea Reader every 4 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | ReadLevel AI | Linea Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 3 MB | 29 MB |
| Age rating | 4+ | 12+ |
| Developer | Isabella Lee-Rubio | Arach Tchoupani |
In-app purchases
ReadLevel AI
- Monthly Subscription$2.991 Month
- Pro Monthly Subscription$9.991 Month
- Scan Pack$0.99
Linea Reader
No in-app purchases









