Comparison

J2K Browser vs Keep Browser

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

Head to head
About

J2K Browser

Read full description

일본 웹 여행에 도움이 되는 웹 브라우저입니다.

About

Keep Browser

This browser organizes your browsing sessions into a tree-like structure, making it easy to compare information and manage multiple tabs. It offers private browsing and ad-blocking for a more secure and comfortable experience.

Highlights
  • Tree-style tab management
  • Tab management with labels
  • Private browsing mode
  • Ad blocking
  • Restoring closed tabs
  • Organizing bookmarks
Features
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Keep Browser turns search results, comparison pages, and research links into organized tree-style tabs. Open links at the top level, in the same group, or in a subgroup so research, shopping, travel planning, work, and study pages stay connected and easy to find. Organized tab groups can be sent as shared links. Share tab groups across supported devices, making it easier to continue research across devices. Useful when you want to: • Open multiple search results and compare them later • Organize products, hotels, restaurants, properties, or other candidates • Keep frequently used pages and pages to read later in groups • Manage many open tabs with hierarchy and labels • Share a group of tabs with family, friends, or another device Main features • Tree-style tab management: Keep related pages in a clear hierarchy. • Tab group sharing: Send selected tab groups as shared links and open them across supported devices. Private tabs are not shared. • Keep Mode: Open tapped links as new tabs in a subgroup and preserve your research flow. • Labels: Add names and colors to tab groups. • Tab List, Tab Map, and related-node preview: Review open tabs and related groups, then jump to the page you need. • Pinned tabs: Keep important pages from being closed by mistake. • Closed tab restore: Restore closed tabs from the list. • Ad blocking: Choose the blocking strength and adjust settings per site to balance cleaner pages with site compatibility. • Private Mode: Browse without saving history or cookies. • Fast scroll: Move quickly through long pages and large tab lists by dragging the scroll bar. • Backup and restore: Back up and restore regular tabs, bookmarks, browsing history, search history, and settings across supported devices. Private tabs, cookies, and login state are not restored. • Bookmarks, history, downloads, page translation, find in page, PDF search, desktop site display, and zoom are also supported. Keep Browser is built not only to open pages, but to organize and preserve them. Manage research, comparison, saving, sharing, and backup in one place.

Screenshots

J2K Browser2 screens
Keep Browser4 screens

Verdict

The call

The clearest difference is update cadence: Keep Browser at every 2 weeks against J2K Browser's every 143 months. On price, in-app purchases, device support and iOS requirement 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.

UpkeepUpdate frequency

J2K Browser ships an update every 143 months, Keep Browser every 2 weeks. The most recent releases landed on May 16, 2026 and September 18, 2026 respectively.

Scorecard1 real difference · 9 level
J2K Browser versus Keep Browser: the parameters behind the verdict, then further details
ParameterJ2K BrowserKeep Browser
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 143 monthsEvery 2 weeks — better
Ads—Yes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.5 — better15.6
Further details — not scored
Size30 MB91 MB
Age rating17+17+
DeveloperJae Gwang LeeRSA TECHNOLOGIES, LIMITED LIABILITY CO.

In-app purchases

None

J2K Browser

No in-app purchases

None

Keep Browser

No in-app purchases

Questions

Is J2K Browser free?
J2K Browser is free to download, with no in-app purchases.
Is Keep Browser free?
Keep Browser is free to download, with no in-app purchases.
Which is updated more often, J2K Browser or Keep Browser?
J2K Browser ships an update every 143 months, and Keep Browser every 2 weeks. Most recently, J2K Browser was updated on May 16, 2026 and Keep Browser on September 18, 2026.

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