Comparison

Booki AI vs Folio

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

Head to head
About

Booki AI

Features
Read full description

The Ultimate AI Book Companion: Upload, Listen, and Achieve. Stop just "reading" and start experiencing your library. Whether it’s a PDF for work or an ePub for pleasure, Booki AI uses advanced Neural Text-to-Speech (TTS) to turn any file into a premium listening experience. -- KEY FEATURES -- FILE TO AUDIO: Seamlessly upload PDFs, ePubs, or text files. Our engine handles the layout so you can enjoy the story. NEURAL AI VOICES: Forget robotic speech. Choose from ultra-premium "Liquid Glass" voices that sound indistinguishable from human narrators. CUSTOMIZABLE PACE: Fine-tune your listening speed from 0.5x to 3.0x without losing pitch clarity. READING JOURNEY & GOALS: Set daily reading targets in your Profile. Track your progress with real-time data visualization and "Liquid Glass" milestones. INTUITIVE INTERFACE: A design that disappears. Focused reading pages, easy chapter navigation, and a modern "Story Map" layout. -- WHY Booki AI? -- In 2026, time is your most valuable asset. Booki AI lets you "read" while you commute, exercise, or rest your eyes. It isn’t just an app; it’s a productivity powerhouse designed for the modern intellectual. Download Booki AI now and unlock your library's true potential.

About

Folio

Features
Read full description

Meet Ollie, your reading companion β€” and discover 75,000+ free books inside the most beautiful reading app on iOS. Folio makes reading feel like holding a real book. Warm cream pages, elegant serif fonts, realistic page turns, and a cozy reading experience designed for people who love books β€” not just screens. FREE BOOKS, BUILT RIGHT IN Browse 75,000+ public domain classics from Project Gutenberg and Standard Ebooks. Frankenstein, Pride and Prejudice, Moby Dick, Romeo and Juliet β€” all free, all beautifully formatted, all yours to keep. - Browse by genre: Fiction, Mystery, Sci-Fi, Romance, Philosophy, History, and more - One-tap download to your personal library - New books added regularly - No subscriptions. No hidden fees. Just great books. READING THAT FEELS REAL Every detail is designed to bring back the joy of physical books: - Warm cream, parchment, night, and midnight themes - Choose your font: Lora, Merriweather, Georgia, Literata, and more - Realistic page curl, smooth slide, or gentle fade transitions - Adjustable font size, spacing, and margins - Import your own EPUB and PDF files HIGHLIGHTS & NOTES YOU'LL ACTUALLY USE Never lose a great passage again: - Color-coded highlights (2 free, 7 with Premium) - Add notes to any highlight - Notes Hub: browse all highlights across all books in one place - Export to Notion, Obsidian, Apple Notes, or Markdown (Premium) SAVE ARTICLES FOR LATER Read web articles in Folio's beautiful reading view: - Save from Safari with the Share Sheet - Articles stripped clean β€” no ads, no clutter - Read offline, highlight, and take notes just like books MEET OLLIE Ollie the owl is your friendly reading companion. He'll help you find your next book, celebrate your milestones, and keep your reading life organized β€” without ever guilt-tripping you. FOLIO PREMIUM β€” $4.99, ONE TIME Unlock everything with a single purchase. No subscription. No recurring charges. - All 7 highlight colors - Smart highlight collections and tags - Export notes - Custom reading themes - Shelf view (wooden bookshelf) - Advanced reading stats and annual report - Custom OPDS catalog support - Unlimited Read It Later articles Download Folio free. Read beautifully. Keep your ideas forever.

Screenshots

Booki AI4 screens
Folio4 screens

Verdict

The call

The clearest difference is in-app purchases: Booki AI at none against Folio's 1. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Folio sells 1 one-off in-app purchase. Booki AI asks for nothing beyond the download.

Scorecard1 real difference Β· 5 level
Booki AI versus Folio: the parameters behind the verdict, then further details
ParameterBooki AIFolio
PriceFreeFree
Update frequencyEvery 4 daysβ€”
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details β€” not scored
Size3 MB13 MB
Age rating4+4+
DeveloperNoah MLaxman Shah

In-app purchases

None

Booki AI

No in-app purchases

1 purchases

Folio

One-time1
  • Folio Plus Lifetime$4.99

Questions

Is Booki AI free?
Booki AI is free to download, with no in-app purchases.
Is Folio free?
Folio is free to download, with in-app purchases available.
Do Booki AI or Folio have ads?
Neither Booki AI nor Folio shows ads.

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