Awesome Open Source
Awesome Open Source


Clendar - minimal calendar

Minimal Calendar & Widgets

Download on the App Store

Landing Page

Ok, this is the readme

I believe the best way to Learn is by doing.

SwiftUI is evolving and I think it's the future of writing apps.

SwiftUI is an innovative, exceptionally simple way to build user interfaces across all Apple platforms with the power of Swift. Build user interfaces for any Apple device using just one set of tools and APIs.

-- Apple

The true power of SwiftUI, to me, is it's flexibility, thanks to it's vast realm of view modifiers and expressiveness with property wrappers.

You can create an "Hello, World!" app with just a few lines of code (check out the new @main attribute!) or even, a calendar view.

SwiftUI give you the most flexible tool an Apple developer could ever ask for, all you need is a bit of creativity, and the possibilities, are, limitless.

Clendar would not be possible without the public knowledge of the community. To name a few, in no particular order:

my notes about SwiftUI:

By publishing Clendar, I would like to give back to the community.

Tech stacks


  • SwiftUI (and UIKit interoperability)
  • iPadOS
  • WidgetKit
  • SiriKit
  • EventKit/EvenKit UI - wrapper with my own Shift package
  • WatchKit
  • Combine
  • Catalyst
  • StoreKit

Build delivery tool

  • Fastlane

Package Managers

  • Swift Package Manager
  • CocoaPods


  • SwiftLint


  • SwiftFormat



  • Xcode 12.0
  • iOS 14.0
  • watchOS 7.0
  • Ruby (for Fastlane build automation)

My own Swift Packages currently used in Clendar

  • Shift - Result-based wrapper for EventKit. SwiftUI supported!
  • Laden - SwiftUI loading indicator view


Contributing is more than welcome, if you feel like helping the app, or want to add new feature, feel free to take a look at my issues page. Thanks!


Huge thanks everyone who took their precious time and effort to contribute to the project.


MIT License

And, if you like, you can download the app on the App Store and leave me a tips via In-App Purchase options.

Open-source inspiration

What's 'Clendar'?

It's just Calendar, without an 'a'. I thought it's unique, but turns out it's not going well with ASO (App Store Optimization) and SEO (Search Engine Optimization).

But, whatever!

Thanks and take care!

I'm on @vinhnx on almost everywhere.

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