FolioSpace Reader vs Koham
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FolioSpace Reader
This personal reading client allows you to browse, organize, and read your digital library. Enjoy comfortable reading layouts for books and comics, with optimized performance for large collections on iPad.
- Connect to FolioSpace Library server
- Browse and organize remote library
- Read EPUB, PDF, comics, webtoons
- Comfortable reading layouts
- Optimized for large libraries
- Local caching for comics
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FolioSpace Reader brings your personal EPUB books, local TXT files, PDFs, comics, and webtoons to iPhone and iPad. Read without a local book limit. Customize typography, use bookmarks and notes, and connect one FolioSpace Library server for browsing, search, reading progress, and offline downloads. On iPhone Duo, keep your bookshelf and book cover on the outer display. Open a book to full-screen reading on the inner display, with side-by-side pages in landscape and a single page in portrait. Unlock Pro with a one-time purchase. Pro includes page-turn animations, the full ambient sound collection, up to five saved FolioSpace Library servers, Calibre-Web and Komga connections, and Markdown notes export. No subscription is required. Core reading, accessibility controls, and your existing books and reading data remain available in the free edition. AI translation and bilingual reading are not included in this release. Terms of Use: https://foliospace.app/terms.html Privacy Policy: https://foliospace.app/privacy.html
Koham
Engage in deep conversations with your books using AI. Import your EPUBs and explore their content through interactive dialogue, fostering self-understanding. The app also features a calm EPUB reader and remembers your discussion history.
- AI-powered book conversations
- Import personal EPUB collections
- Real-time voice interaction
- EPUB reader with customization
- Discussion memory and editing
- API key configuration for AI
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After you finish a book, how much of it actually stays with you? Koham offers a different path: talk to your books instead of merely reading them. Import a book. Start a conversation. Back and forth, unhurried, like a late-night walk or an intimate chat in a quiet study. Koham will not help you speed-read, nor will it help you memorize more. It does one thing: it lets you converse with your books through AI, so that in the exchange, you come to know yourself. When true understanding arrives, you never forget. What you seek, you already are. --- Core Experience • Talk to Books: Ask any book what truly matters to you. Every response is grounded in the text. • Realtime Voice: Like calling an old friend. Speak, listen, interrupt, or simply pause in silence. • Your Bookshelf: Import your personal collection. Every book feels like an old friend. • Calm Reading: A quiet EPUB reader. Customize fonts, themes, and brightness as you like. • Thought Continuity: It remembers past discussions so you can pick up next time. View, edit, or delete memories anytime. --- Please Note • Koham does not include books. Please import your own EPUB files. • AI conversations require configuring your own API key in Settings, with step-by-step guidance in the app.
Screenshots
Verdict
The clearest difference is device support: FolioSpace Reader at 4 against Koham's 2. FolioSpace Reader also leads on iOS requirement (18.0 vs 27.0). On price, rating, ratings volume and update cadence 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. FolioSpace Reader sells 1 one-off in-app purchase and Koham sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for FolioSpace Reader against 5.0 for Koham. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
FolioSpace Reader ships an update every 9 days, Koham weekly. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.
| Parameter | FolioSpace Reader | Koham |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 9 days | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch, Vision Pro — better | iPhone, iPad |
| Requires iOS | 18.0 — better | 27.0 |
| Further details — not scored | ||
| Size | 34 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | 晓东 傅 | 统伟 陈 |
Customer experience
FolioSpace Reader
Koham
In-app purchases
FolioSpace Reader
- Lifetime Pro$6.99
Koham
- Koham Supporter$6.99









