Rubra, Interactive Creator Hub vs KofAI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rubra, Interactive Creator Hub
Save, organize, and share bookmarks with visual previews and notes. Create private or public collections for collaboration and easily find inspiration with tags and search.
- Save bookmarks with visual previews
- Add notes to saved content
- Organize with tags
- Filter and search content
- Create private or public collections
- Collaborate on collections
- Share collections
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Create more with what you share. Rubra is an interactive creator hub for turning ideas, research, recommendations and content into engaging experiences your audience can explore and interact with. Create interactive collections with links, images, notes, videos and more. Turn your research and recommendations into tier lists, rankings, top lists and other interactive content. Organize everything in one place and share it with your audience. Build your own creator hub to give your content more depth and your audience more ways to discover, explore, participate and engage. Share your collections anywhere and bring your audience back to a place you control. Rubra is also a powerful tool for research and content creation. Save bookmarks, articles, images and ideas, add notes and tags, search and filter your content and organize everything into private or public collections. Collaborate with others and turn your research into content you can share.
KofAI
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Keep one photo from each group of similar shots or bursts. Sort large videos, biggest first. Find a filed screenshot by the words inside it. Add its dates to Calendar in one tap. Matching and text reading run on your phone and use no AI credits. Sort 50 items a day for free. SIMILAR PHOTOS, BURSTS, LARGE VIDEOS - Similar photos: pick one shot from each group to keep. The rest are marked for deletion. After the scan, you see about how much space you can clear. Needs iOS 17 or later. - Bursts: keep one photo from each burst. - Large videos: start with the biggest. Delete or keep each one. - Matching runs on your phone. Photos and videos are never uploaded or sent to AI. Photos stored only in iCloud are not matched. SORT SCREENSHOTS Swipe through your screenshots one by one. Swipe left to delete, right to skip, or file useful ones into folders like Food, Shopping, and Places. - Search them: text in filed screenshots is read on your phone. Type a few words in Search to find the screenshot again. - Dates to Calendar: when a screenshot shows a booking, event, or due date, add it to Calendar in one tap. You can also get a phone notification the day before. - Delete safely: iOS asks before deleting, and deleted photos go to Recently Deleted. - Images stay on your phone: screenshot images are never uploaded. AI FOR LINKS AND ARTICLES Share articles and social posts into KofAI. AI writes a summary, key insight, and tags. Later, ask a question in plain words. AI answers only from what you saved and shows the source. MORE FEATURES - Share extension capture from browsers, social apps, and any app that shares text or URLs - Offline-first local storage - Cloud sync after sign-in - Data export to Markdown zip or JSON - In-app account deletion USAGE LIMITS Free: - Sort 50 items a day across screenshots, photos, and videos. The limit resets the next day. Each delete, skip, or filed screenshot counts as one. Each photo in a group counts. Each video counts as one. - Save up to 50 notes. Filed screenshots count as notes. - A daily allowance of AI analysis and AI chat that resets the next day. - Screenshot text reading, search, Add to Calendar, and photo matching run on your phone and use no AI credits. Photo Cleanup Lifetime (one-time purchase): - Sort unlimited screenshots, photos, and videos. - Filed screenshots have no 50-note limit. - AI features are not included. Other notes, like shared or manual ones, keep the free 50-note limit. - Pay once. It does not renew. KofAI Pro Subscription: - Sort unlimited screenshots, photos, and videos - Unlimited AI analysis and AI chat - Unlimited notes - Monthly: US$1.99 / month - Yearly: US$14.99 / year (save ~37%), billed in your local currency Subscriptions auto-renew through your Apple ID and can be cancelled anytime in Settings. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://keeponfirst.com/kofnote/privacy Privacy: Screenshot images, photos, and videos are never uploaded. Text read from filed screenshots syncs to your account after sign-in. In Sort screenshots, text goes to AI only when you tap AI organize. Screenshots you pick or share into KofAI are sent to AI for organizing as text. KofAI uses account login for cloud sync. AI analysis is processed through the KofAI Gateway. The app uses Firebase for crash reporting, basic product analytics, and remote configuration. KofAI - Keep On First. Keep useful things where you can find them again.
Screenshots
Verdict
The clearest difference is in-app purchases: Rubra, Interactive Creator Hub at none against KofAI's 3. Rubra, Interactive Creator Hub also leads on ads (none vs shown) and device support (4 vs 2). KofAI's advantage is update cadence (every 5 days vs every 5 weeks). On price 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
Both are free to download. KofAI sells 3 in-app purchases, starting at $1.99 per month. Rubra, Interactive Creator Hub asks for nothing beyond the download.
Rubra, Interactive Creator Hub ships an update every 5 weeks, KofAI every 5 days. Both last shipped on October 24, 2026.
| Parameter | Rubra, Interactive Creator Hub | KofAI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 5 weeks | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 50 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | rubra ag | yu te Lin |
In-app purchases
Rubra, Interactive Creator Hub
No in-app purchases
KofAI
- KofAI Note Pro 月訂閱$1.991 Month
- KofAI Note Pro 年訂閱$14.991 Year
- Photo Cleanup Lifetime$2.99
Questions
Is Rubra, Interactive Creator Hub free?
Is KofAI free?
Do Rubra, Interactive Creator Hub or KofAI have ads?
Which is updated more often, Rubra, Interactive Creator Hub or KofAI?
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