Comparison

PearCal vs Ki

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

Head to head
About

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.

Highlights
  • Peer-to-peer syncing
  • No server or cloud required
  • Create and share events
  • Set reminders
  • Selective event sharing
  • Optional holiday calendars
  • Open source
Features
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

PearCal4 screens
Ki4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ki sells 1 one-off in-app purchase. PearCal asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

PearCal ships an update every 4 days, Ki every 2 days. Both last shipped on October 31, 2026.

Scorecard3 real differences · 7 level
PearCal versus Ki: the parameters behind the verdict, then further details
ParameterPearCalKi
PriceFreeFree
Rating5.0 (3 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings3 — better2
Update frequencyEvery 4 daysEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better18.6
Further details — not scored
Size78 MB4 MB
Age rating4+4+
DeveloperTimothy HudginsJuan Casanueva

Customer experience

PearCal

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Ki

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PearCal

No in-app purchases

1 purchases

Ki

One-time1
  • Buy me a coffee$0.99

Questions

Is PearCal free?
PearCal is free to download, with no in-app purchases.
Is Ki free?
Ki is free to download, with in-app purchases available.
Which has better reviews, PearCal or Ki?
PearCal and Ki are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.
Do PearCal or Ki have ads?
Neither PearCal nor Ki shows ads.
Which is updated more often, PearCal or Ki?
PearCal ships an update every 4 days, and Ki every 2 days. Most recently, PearCal was updated on October 31, 2026 and Ki on October 31, 2026.

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