PearCal vs Ki
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PearCal
This app offers a private, peer-to-peer calendar experience. It syncs directly between devices without needing servers or accounts, ensuring your data stays within your chosen groups. Create events, set reminders, and selectively share with members.
- Peer-to-peer syncing
- No server or cloud required
- Create and share events
- Set reminders
- Selective event sharing
- Optional holiday calendars
- Open source
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PearCal is a peer-to-peer calendar app that syncs directly between devices — no server, no cloud, no accounts required. Your calendar data never leaves your group. It lives only on the devices of the people you choose to share with, powered by Hypercore Protocol. FEATURES Peer Groups Create a group and invite others via a share link or QR code. Each group has its own color and avatar. Members see only the events shared with them. Events & Reminders Create one-time or recurring events. Set a reminder time per event. Selectively share events with specific group members — not everyone in a group has to see every event. Holidays Optional US, Canada, and UK public holiday calendars. Toggle per country from your profile. Holiday events are read-only and stored locally only. Privacy First No account creation. No email address. No tracking. No ads. Your data stays on your devices. Open Source PearCal is free and open source. Source code is available on GitHub. PERMISSIONS Camera — used to set your profile photo and scan QR invite codes. Photo Library — used to set your profile photo.
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.
Screenshots
Verdict
The clearest difference is in-app purchases: PearCal at none against Ki's 1. PearCal also leads on iOS requirement (15.1 vs 18.6). Ki's advantage is update cadence (every 2 days vs every 4 days). On price, rating, review sentiment and ratings volume 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. PearCal asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for PearCal against 5.0 for Ki. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
PearCal ships an update every 4 days, Ki every 2 days. Both last shipped on October 31, 2026.
| Parameter | PearCal | Ki |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 4 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.6 |
| Further details — not scored | ||
| Size | 78 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Timothy Hudgins | Juan Casanueva |
Customer experience
PearCal
Ki
In-app purchases
PearCal
No in-app purchases
Ki
- Buy me a coffee$0.99









