Simple Calendar from Komorebi Inc. is essentially a minimalist planner designed for people who find today's calendar apps overly complicated and cluttered. The app focuses on providing a clean, intuitive interface for managing daily schedules without the noise of endless widgets, syncing options, or social features. Its main purpose is to let you see your day at a glance and add events quickly, solving the problem of information overload that plagues many mainstream calendar tools.

The target audience includes students, busy professionals, and anyone who prefers a straightforward approach to time management. I found the core functionality works surprisingly well. Adding an event takes just two taps, and the color-coded entries make it easy to distinguish between work tasks, personal appointments, and deadlines. The additional features like recurring events and a simple reminder system add real value without bloating the experience. For me, it solved a persistent frustration: I used to spend more time navigating Google Calendar's menus than actually planning my day. Simple Calendar streamlined this, reducing friction and helping me stick to my schedule more consistently.

Based on my experience, I'd recommend this app to users who need a no-fuss daily planner. It's perfect for people who just want to see their appointments clearly and add events quickly, without any of the extra bells and whistles. If you're someone who gets distracted by too many options or just wants a digital version of a paper planner, this is the right tool. However, if you rely on complex integrations, multiple calendar syncing, or advanced project management features, you might find it too basic.

• 📅 The app's core feature is its ultra-clean daily view. You open it and immediately see your entire day laid out in a simple vertical timeline. No tabs, no nested menus, no scrolling through months first. This direct approach saved me so much mental energy. I no longer felt overwhelmed looking at my schedule; instead, I could actually process and plan my day.
• ⏰ Quick event creation is another standout. You tap a plus icon or simply double-tap a time slot. A minimal form appears asking only for the event name and duration. That's it. No fields for location, notes, or repeat options unless you want them. This reduced the friction of adding appointments to almost zero, which meant I actually started using the calendar to plan minor tasks I used to skip.
• 🎨 Color coding is elegantly implemented. You can assign colors to events based on categories you define. The palette is carefully chosen to be distinct yet soft on the eyes. I created categories for work, personal, health, and family. At a glance, I could see the balance of my day. It helped me spot if one area was taking over, which was something I never noticed with more cluttered apps.
• 🔔 Simple reminders come built-in without any extra setup. When you create an event, you can optionally set a reminder for minutes, hours, or a day before. The notification arrives as a clean pop-up, not a long notification chain. This minimalism prevented notification fatigue, yet ensured I never missed important appointments.

• 🌱 The learning curve is virtually nonexistent. Because the app strips away every unnecessary feature, you can master it in under five minutes. This instant usability is rare and valuable for people who just want a tool that works.
• ⚡ Performance is exceptionally smooth. The app launches instantly, scrolls without lag, and handles thousands of events without slowing down. Komorebi Inc. clearly optimized the underlying code well.
• 📱 The design follows modern mobile UX principles perfectly. Touch targets are properly sized, spacing is generous, and the typography is crisp. It genuinely feels pleasant to use daily.

• 🔗 There is no integration with other calendar services like Google Calendar or Outlook. If you manage multiple calendars, you cannot sync them here. This is the biggest dealbreaker for power users.
• 📝 Event customization is very limited. You cannot add notes, attachments, or custom recurrence patterns. For complex scheduling needs, the app feels too restrictive.
• 🌙 A proper dark mode is missing. The white background can be harsh in low-light environments. A dark theme toggle would greatly improve nighttime usability.