Comparison

Comic Book Viewer vs OSHello

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

OSHello

Features
Read full description

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

Comic Book Viewer2 screens
OSHello4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
Comic Book Viewer versus OSHello: the parameters behind the verdict, then further details
ParameterComic Book ViewerOSHello
PriceFreeFree
Rating3.8 (135 ratings) — better—
Positive reviews71.0% of reviews—
Number of ratings135 — better—
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better18.0
Further details — not scored
Size8 MB7 MB
Age rating4+4+
DeveloperSebastian 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

None

Comic Book Viewer

No in-app purchases

None

OSHello

No in-app purchases

Questions

Is Comic Book Viewer free?
Comic Book Viewer is free to download, with no in-app purchases.
Is OSHello free?
OSHello is free to download, with no in-app purchases.
Do Comic Book Viewer or OSHello have ads?
Neither Comic Book Viewer nor OSHello shows ads.

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