Comparison

ReadLevel AI vs Mimir Books

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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/

About

Mimir Books

Features
Read full description

Transform your reading habit with Mimir Books. Whether you are a casual reader or a bookworm aiming to beat your yearly challenge, Mimir Books is the definitive tool to read, track, manage, and understand your reading life. Designed by Dédalo Studio with a focus on privacy, aesthetics, and simplicity, Mimir offers a distraction-free experience to help you focus on what matters most: Reading. Key Features: - Beautiful EPUB Reader (NEW) Read your favorite books directly within the app. Open your EPUB files in a clean, customizable, and distraction-free environment. Highlight your favorite quotes and let Mimir automatically save your exact page and progress. - Cloud Sync & Windows App (Premium) Take your library everywhere. Read on your phone while commuting, and continue exactly where you left off on your PC with our dedicated Windows desktop app. Your progress, highlights, and library sync seamlessly across all your devices. - Smart Reading Timer Track your reading sessions in real-time. Just hit play, read, and let Mimir handle the logging to help you build a consistent habit. - Library Management Organize your books into clear categories: Reading Now, Want to Read, and Finished. Search and add books instantly using our extensive online database, or create custom entries for rare editions. - Insightful Statistics Visualize your progress like never before. • Reading Heatmap: See your reading consistency at a glance. • Progress Bars: Track how close you are to finishing each book. • Time & Pages: Detailed breakdown of your speed and dedication. - Private & Offline First Your library belongs to you. Mimir Books works completely offline using a local database, ensuring your books and data are always accessible, even without an internet connection. Why Mimir Books? • No Ads: Enjoy a clean, uninterrupted interface forever. • Stunning Aesthetics: Beautiful dark mode and customizable themes. • Fast & Lightweight: Built with the latest technology for smooth performance. Start your journey today. Download Mimir Books and build a reading habit that lasts. Standard Apple Terms of Use (EULA) apply to this app: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ReadLevel AI4 screens
Mimir Books4 screens

Verdict

The call

The clearest difference is update cadence: Mimir Books at every 3 weeks against ReadLevel AI's every 4 months. Mimir Books also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ReadLevel AI sells 3 in-app purchases, starting at $2.99 per month and Mimir Books sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ReadLevel AI ships an update every 4 months, Mimir Books every 3 weeks. The most recent releases landed on October 23, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 8 level
ReadLevel AI versus Mimir Books: the parameters behind the verdict, then further details
ParameterReadLevel AIMimir Books
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size3 MB67 MB
Age rating4+4+
DeveloperIsabella Lee-RubioJuan Bautista Galvan

In-app purchases

3 purchases

ReadLevel AI

Subscriptions2
  • Monthly Subscription$2.991 Month
  • Pro Monthly Subscription$9.991 Month
One-time1
  • Scan Pack$0.99
3 purchases

Mimir Books

Subscriptions2
  • Mimir Books: Monthly Access$3.991 Month
  • Mimir Books: Yearly Access$39.991 Year
One-time1
  • Mimir Books: Lifetime Access$99.99

Questions

Is ReadLevel AI free?
ReadLevel AI is free to download, with in-app purchases available.
Is Mimir Books free?
Mimir Books is free to download, with in-app purchases available.
Do ReadLevel AI or Mimir Books have ads?
Neither ReadLevel AI nor Mimir Books shows ads.
Which is updated more often, ReadLevel AI or Mimir Books?
ReadLevel AI ships an update every 4 months, and Mimir Books every 3 weeks. Most recently, ReadLevel AI was updated on October 23, 2026 and Mimir Books on October 13, 2026.

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