# Highkey Day: Custom Calendar — Todo, Stickers, Lock Screen > Customizable calendar with todos, events, stickers, reports, and lock screen widgets. (iPhone/iPad app by Egg Toast Lab.) - Source: https://appshunter.io/ios/app/highkey-day-custom-calendar/id6761702901 (this page in markdown: same URL + `.md`) - Developer: [Egg Toast Lab](https://appshunter.io/developer/1868199361) - Category: Productivity, Lifestyle - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 17.0 · 38 MB - Languages: Korean, American English - Released: 2026-04-15 - Data updated: 2026-09-10 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/highkey-day-custom-calendar/id6761702901/reviews.md ## What is Highkey Day? Personalize your calendar and bring it to your lock screen and widgets—a custom calendar that's truly yours! Calendar · Todos · Events Tap any date to add, edit, complete, or delete todos and events. Use repeat rules to reduce repetitive entries. Organize with tags and colors. Place stickers on the calendar to mark completed days or express your mood. Reports View summaries and stats of your activity over any time period. Spot patterns at a glance. Widgets & Lock Screen Check today's schedule with home screen and lock screen widgets. Personalize your lock screen background and calendar style. Sync & Integration Sync with Apple Calendar, Reminders, Google Calendar, or Naver Calendar (CalDAV). Turn on iCloud for cross-device sync. Notifications Set reminders at your preferred times so you never miss an event or todo. Highkey Day Pro Some features require a subscription or one-time purchase. Core features are fully usable for free. · Monthly: $2.99/mo · Yearly: $24.99/yr · Lifetime: $34.99 You can restore purchases and cancel anytime. * Contact: admin@eggtoastlab.com * Terms: https://www.eggtoastlab.com/terms * Privacy: https://www.eggtoastlab.com/privacy ## Key features - Customizable calendar interface - Todo and event management - Stickers for mood and completion - Activity reports and stats - Lock screen and home screen widgets - Sync with Apple, Google, and Naver Calendars - Repeat rules for recurring tasks ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Highkey Day Pro Yearly | $24.99 | per year | | Highkey Day Pro Monthly | $2.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Highkey Day Pro Lifetime | $29.99 | one-time | ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/highkey-day-custom-calendar/id6761702901/reviews.md ### 5/5 — 퀄이 너무 좋아서 놀랐습니다 *2026-04-18* 스티커 꾸미는 재미에 일정을 잘 챙기게 됩니다!! 커스텀 디자인도 마음에 들어요 감사해요 개발자님 **Developer response:** 안녕하세요. 하이키 데이입니다. 좋은 리뷰 너무 감사드립니다!! 앞으로 더 좋은 앱 만들도록 하겠습니다! ### 5/5 — 커스텀 이정도로 된다고? *2026-04-16* 진심 캘린더 유목민인데 이걸로 정착하려구요… 위젯, 잠금화면, 앱 내 캘린더 스티커 모두 대만족입니다… 너무 감사해요!!! **Developer response:** 안녕하세요. 하이키 데이입니다. 좋은 리뷰 너무 감사드립니다!! 앞으로 더 좋은 앱 만들도록 하겠습니다! ## Frequently asked questions about Highkey Day ### What is Highkey Day? Highkey Day is a productivity app that allows you to create a personalized calendar with todos, events, and stickers. It also offers lock screen widgets and activity reports. ### Can I sync Highkey Day with other calendars? Yes, Highkey Day supports syncing with Apple Calendar, Reminders, Google Calendar, and Naver Calendar via CalDAV. iCloud sync is also available for cross-device synchronization. ### Does Highkey Day have ads? No, Highkey Day does not contain advertisements. The core features are fully usable for free, with optional upgrades for advanced features. ### What are the subscription options for Highkey Day Pro? Highkey Day Pro offers monthly ($2.99/mo), yearly ($24.99/yr), and lifetime ($34.99) purchase options. You can restore purchases and cancel subscriptions at any time. ### How often is Highkey Day updated? The latest version of Highkey Day is 1.0.5, and it was last updated on May 10, 2026. This indicates a recent update, suggesting active development. ### What devices does Highkey Day support? Highkey Day is currently supported on iPhone devices. It is rated for ages 4 and up. ### Can I use Highkey Day offline? While the description doesn't explicitly state offline functionality, core calendar and todo management features are typically accessible offline. Syncing and advanced reporting may require an internet connection. ### What do users like about Highkey Day? Based on the description, users likely appreciate the high degree of personalization, the ability to add stickers, and the convenience of lock screen widgets for quick access to their schedule. ## Version history (last 5 releases) ### 1.0.5 — 2026-05-10 Improved stability and performance. ### 1.0.4 — 2026-05-10 Improved stability and performance. ### 1.0.3 — 2026-04-22 Improved stability and performance. ### 1.0.2 — 2026-04-16 Improved stability and performance. ### 1.0.1 — 2026-04-15 Improved stability and performance. ## More apps by Egg Toast Lab - [수익차곡 : 투자일지, 주식수익](https://appshunter.io/ios/app/id6757674985) - [리뷰차곡 : 광고 없는 진짜 맛집 리뷰](https://appshunter.io/ios/app/id6758138731) - [북차곡 : 매일 쌓이는 독서 습관](https://appshunter.io/ios/app/id6758202153) - [Catlendar: Calendar & To-Dos](https://appshunter.io/ios/app/catlendar-calendar-and-to-dos/id6758548648) - [축구차곡 : K리그 직관 기록](https://appshunter.io/ios/app/k/id6761761240) All apps by Egg Toast Lab: https://appshunter.io/developer/1868199361 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-10.*