J2K Browser vs Sakubura
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
J2K Browser
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Sakubura
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Watch while you browse. Read without the noise. On supported sites, use iOS Picture in Picture to keep a video visible while you browse another page. Organize the pages you want to revisit with Watch Later and lists, including supported video pages. Ads and trackers are blocked automatically, so the articles and pages you actually want load fast and light. Built on Apple's WKContentRuleList, Sakubura drops ad requests before the page is even assembled ā lighter pages, less data, longer battery. Your browsing history and block stats stay on your device, not on someone else's server. Ā· Picture in Picture ā keep a video visible while you browse, on supported sites. Ā· Watch Later & lists ā organize the pages you want to revisit, including video pages; open them from the Home Screen widget. Ā· Ad & tracker blocking ā high-precision filtering tuned for Japanese sites. Ā· Tab groups ā keep work and personal separate, switch one-handed. Ā· Gesture controls ā swipe to go back and forward, easy one-handed. Ā· Private mode ā passcode lock for the browsing you'd rather keep private. Ā· See what's blocked ā the Privacy Hub shows today's blocks at a glance; stats stay on your device. Pay once. No subscription.
Screenshots
Verdict
The clearest difference is in-app purchases: J2K Browser at none against Sakubura's 2. J2K Browser also leads on device support (4 vs 2) and iOS requirement (15.5 vs 17.0). Sakubura's advantage is update cadence (every 5 weeks vs every 143 months). On price there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Sakubura sells 2 one-off in-app purchases. J2K Browser asks for nothing beyond the download.
J2K Browser ships an update every 143 months, Sakubura every 5 weeks. The most recent releases landed on October 26, 2026 and October 31, 2026 respectively.
| Parameter | J2K Browser | Sakubura |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 143 months | Every 5 weeks ā better |
| Ads | ā | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPad, iPod, Apple Watch ā better | iPhone, iPad |
| Requires iOS | 15.5 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 30 MB | 25 MB |
| Age rating | 17+ | 17+ |
| Developer | leesop.com | Tryxia |
In-app purchases
J2K Browser
No in-app purchases
Sakubura
- 14-Day Pro TrialFree
- Pro Lifetime$5.99
Questions
Is J2K Browser free?
Is Sakubura free?
Which is updated more often, J2K Browser or Sakubura?
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