Ki vs Open Hub
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ki
Capture, organize, and connect all your learning in one place. This app allows you to save notes, links, code snippets, and ideas, then link them together to build a web of knowledge. Find anything fast with full-text search and visual knowledge graphs.
- Capture notes, links, quotes, code snippets, and ideas
- Organize with color-coded tags and custom topics
- Connect notes with bidirectional linking
- Visualize knowledge with interactive graphs
- Full-text search and saved searches
- Quick capture via floating button and widgets
- Review workflow for managing notes
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Ki-note is your personal knowledge base. Capture, organize, and connect everything you learn — all in one place. CAPTURE EVERYTHING • Notes, links, quotes, code snippets, ideas, and references • Quick capture with a floating + button from anywhere in the app • Save source URLs and titles for web content. You can share links from Safari to Ki-note! • Tag code snippets with their programming language (Swift, Python, JavaScript, TypeScript, Go, Rust) • You can insert notes, text, links, into Ki-notes using the Share functionality • You can insert notes using voice in the Control Center widget or using a shortcut with Siri ORGANIZE YOUR WAY • Tags — color-coded labels to categorize your notes • Topics — group related notes under a single theme with custom icons • Smart Collections — automatic filters like Inbox, Favorites, Reading Queue, Unreviewed, Quotes, Ideas, Links, Untagged, and Unlinked • Configurable Quick Access dashboard on the home screen • Pin, favorite, and archive notes • Review workflow — track notes from Inbox → Unreviewed → Reviewing → Reviewed CONNECT YOUR KNOWLEDGE • Link notes together to build a web of ideas • Bidirectional linking — see which notes link to and from each note • Interactive Knowledge Graph — visualize all your notes and their connections • Customizable graph settings for colors, forces, and display options FIND ANYTHING FAST • Full-text search across all notes • Save frequently used searches for quick access • Browse by tags and topics • Filter by note type, status, or collection BUILT FOR YOU • 100% free — no ads, no subscriptions, all features unlocked • Local-first — your data stays on your device with SwiftData • Localized in 6 languages: English, Spanish, French, German, Italian, and Portuguese • Light and dark mode with customizable themes • Optional one-time tip to support development Ki-note is designed for students, researchers, developers, writers, and anyone who wants to build a personal knowledge base that grows with them.
Open Hub
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OpenHub turns all your cloud storage and local files into one native media box for iPhone and iPad. Connect your own accounts, browse every folder as a drive, and stream, download, and organize — fast and native, with no ads and no account required. YOUR CLOUDS, ONE APP Add the storage you already use and browse it side by side: • Google Drive, Dropbox, OneDrive, Box, pCloud, MEGA • FTP and HTTP servers on your own network • Files stored right on your device OpenHub only opens storage you own or are authorized to access — there is no built-in catalog. REAL VIDEO PLAYBACK Powered by VLCKit, OpenHub plays the formats other apps choke on — MKV, AVI, MOV and more — with multiple audio and subtitle tracks, and it resumes where you left off. MORE THAN VIDEO Open PDFs, photos, and documents too. Pin favorites with bookmarks and search your files right on the device. PRIVATE BY DESIGN • Secure Share Info — share a folder or a login as a sealed, self-expiring code; the real path stays hidden. • Local lock — keep photos, videos, and documents behind a passcode that never leaves your device. • Credentials are stored in the device Keychain. OpenHub has no account and collects no personal data. MAKE IT YOURS Switch between a clean modern look and a playful retro theme. WAYS TO USE IT • Share a public link as a code that expires on its own. • Turn a folder on your computer into a home media hub over your own network. • Lock away private files behind an on-device passcode. • Run a time-limited hub and hand out sealed codes that expire. OpenHub is part of vuba.one. Free on iPhone and iPad.
Screenshots
Verdict
The clearest difference is iOS requirement: Open Hub at 16.0 against Ki's 18.6. 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
Both are free to download. Ki sells 1 one-off in-app purchase and Open Hub sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Ki | Open Hub |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Juan Casanueva | Vu Bach |
In-app purchases
Ki
- Buy me a coffee$0.99
Open Hub
- Buy Me a Coffee$0.99









