Comic Book Viewer vs OSHello
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Comic Book Viewer
A fast and user-friendly application for viewing digital comic books and PDF files. It supports various comic archive formats and common image types, offering library management and metadata display.
- Supports CBT, CBZ, CBR, CB7, and PDF formats
- Recognizes PNG, JPG, GIF, TIFF, BMP, and WebP images
- Import/export comics via iTunes or third-party apps
- AirDrop support for sharing between devices
- Displays metadata (CoMet, ACBF, Comic Rack, ComicBookInfo)
- Library search functionality
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Comic Book Viewer is a lightweight, fast and easy to use reader for your favorite comic books in cbt, cbz, cbr, cb7 or pdf format. Recognized image formats include png, jpg, gif, tiff, bmp and webp. Import and export your comics via iTunes or simply by sharing them in any third-party app on your device. Send them to other devices via AirDrop. Comic Book Viewer supports and shows metadata in CoMet, Advanced Comic Book Format, Comic Rack or in ComicBookInfo format and allows you to search your library. Comics seen in screenshots © 2014-2025 by Ctrl+Alt+Del Productions. Courtesy of Tim Buckley, http://www.cad-comic.com. Comics not included.
OSHello
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OSHello is a bilingual guide to the world of operating systems. It helps people understand how different systems evolved, where they are used, and why they matter. The app includes a curated catalog of operating systems across personal computers, phones, servers, embedded devices and historic platforms. You can browse entries, compare system families, explore a visual timeline, view rankings based on public data, and save favorite systems for later reading. Each entry includes basic facts, sources, images and a short custom-written trait summary designed for quick learning. OSHello also supports full-screen image viewing, share cards and a daily recommendation widget, making it easy to keep exploring over time. Key features: - Home discovery with rotating recommendations - Searchable system catalog with filters and favorites - Timeline view for operating-system history - Rankings based on public reference data - Detailed system pages with facts, images and sources - Share cards you can save to Photos - Daily system recommendation widget - Chinese and English support OSHello is designed as a reference and learning experience for people who want a clearer map of the operating-system landscape through browsing, reading and comparison inside the app.
Screenshots
Verdict
The clearest difference is iOS requirement: Comic Book Viewer at 15.6 against OSHello's 18.0. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Comic Book Viewer | OSHello |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (135 ratings) — better | — |
| Positive reviews | 71.0% of reviews | — |
| Number of ratings | 135 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 8 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Sebastian Boettcher | 恩澄 许 |
Bugs and requests
Comic Book Viewer
Reported bugs
3 issues- Slider not working after recent update
- Pages randomly skipping ahead when switching orientation
- Inability to import some comic file formats
Requested features
4 requests- Add ability to rename/reorder comics
- Implement vertical scrolling mode
- Provide more customization settings
- Improve library management with folders/collections
OSHello
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Comic Book Viewer
No in-app purchases
OSHello
No in-app purchases
Questions
Is Comic Book Viewer free?
Is OSHello free?
Do Comic Book Viewer or OSHello have ads?
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