Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · Comic Book Reader Apps

Panels vs Challenger Comics Viewer

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Panels #5 in Comic Book Reader Apps 7.6/10 Free plan Free plan✓ 4 of 4 features Visit Panels
Challenger Comics Viewer #7 in Comic Book Reader Apps 7.4/10 Free plan Free plan✓ 2 of 4 features Visit site

Panels leads on 2 checks, Challenger Comics Viewer on 0, and 3 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorePanels · 7.6/10
  • Free planboth
  • Most featuresPanels · 4 of 4

Panels scores higher on our rubric for comic book reader apps: 7.6 against 7.4 out of 10; our editors rank them #5 and #7.

Panels offers panel-by-panel mode; Challenger Comics Viewer doesn't. Panels offers cloud sync; Challenger Comics Viewer doesn't.

Panels is the better fit for apple users who want cloud libraries and panel reading. Challenger Comics Viewer is the better fit for android readers who need many formats and file sources.

  • Panels fits best

    Apple users who want cloud libraries and panel reading

  • Challenger Comics Viewer fits best

    Android readers who need many formats and file sources

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Panels 7.6/10 Visit ↗ Challenger Comics Viewer 7.4/10 Visit ↗
At a glance
Editor score 7.6 7.4
Ranking #5 in Comic Book Reader Apps #7 in Comic Book Reader Apps
Best for Apple users who want cloud libraries and panel reading Android readers who need many formats and file sources
Pricing model Free plan + paid Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Mobile, Desktop Mobile
Platforms iOS, macOS Android
Support Email, Community, Docs Email, Docs
Integrations 8 integrations 11 integrations
Built for Solo, Small business Solo
Features Panels 4/4 · Challenger Comics Viewer 2/4
Panel-by-panel mode ✓ (best) —
Library organization ✓ ✓
Cloud sync ✓ (best) —
Manga reading ✓ ✓
Specs
Archive formats CBZ, CBR, CB7 (7z), PDF, comic ePUB CBZ/ZIP, CBR/RAR, CBT/TAR, CB7/7Z
Platforms iOS, macOS Android
Our review
Pros
  • Reads CBZ, CBR, CB7, PDF, and image-based comic ePUB files
  • Supports cloud folders and OPDS libraries, including Komga and Kavita
  • Offers panel-by-panel reading, manga direction, and cross-device progress sync
  • Opens comic archives, PDF, DjVu, ePUB, and common image formats
  • Connects to network and cloud sources including Drive, Dropbox, and WebDAV
  • Offers reading history, resume position, and adjustable display controls
Cons
  • Available only on iOS and macOS
  • Cloud libraries and OPDS require a premium option
  • Page filters and text detection are premium features
  • Available for Android only
  • Cloud services provide file access, not verified synchronization
  • No panel-reading mode
Our verdict

Panels is a DRM-free comic and manga reader for iPhone, iPad, and Mac, aimed at Apple users who want to keep a digital library organized and read across devices. It handles CBZ, CBR, CB7, PDF, and image-based comic ePUB files, with…

Read the review →

Challenger Comics Viewer is an Android app for reading comics, manga, books, and PDFs on phones and tablets. It is suited to readers with collections spread across different file types or storage locations, as well as those who want to…

Read the review →
  1. PanelsComic Book Reader Apps 7.6Free plan
  2. Challenger Comics ViewerComic Book Reader Apps 7.4Free plan

Strengths and trade-offs

  • Panels — where it wins

    • Reads CBZ, CBR, CB7, PDF, and image-based comic ePUB files
    • Supports cloud folders and OPDS libraries, including Komga and Kavita
    • Offers panel-by-panel reading, manga direction, and cross-device progress sync

    Where it doesn't

    • Available only on iOS and macOS
    • Cloud libraries and OPDS require a premium option
    • Page filters and text detection are premium features
  • Challenger Comics Viewer — where it wins

    • Opens comic archives, PDF, DjVu, ePUB, and common image formats
    • Connects to network and cloud sources including Drive, Dropbox, and WebDAV
    • Offers reading history, resume position, and adjustable display controls

    Where it doesn't

    • Available for Android only
    • Cloud services provide file access, not verified synchronization
    • No panel-reading mode
  • Panels7.6/10 · Free plan

    A capable Apple-only comic reader with archive support, cloud libraries, and panel-by-panel modes.

    Visit PanelsFull verdict →
  • Challenger Comics Viewer7.4/10 · Free plan

    A free Android reader with broad file support and flexible viewing controls.

    Visit siteFull verdict →

More comparisons

Guides on comic book reader apps

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update