Must vs iomatrix
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Must
Manage all your schedules quickly and easily with this intuitive app. It offers convenient schedule notifications, a dark theme option, and a task monitor to keep track of your to-dos. Organize your tasks systematically using the Eisenhower Matrix and color-coded tags.
- Eisenhower Matrix for systematic task management
- Convenient schedule notifications
- Home screen widgets for quick access
- Customizable color tags for event classification
- Task monitor with filtering options
- Dark theme support
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쉽고 편리한 "must"로 모든 일정을 빠르게 관리하세요. ■ must 앱은, - 쌓여있어 머리 아픈 할 일에 필요 없는 기능은 없앴어요. - 편리한 일정 알림을 받아보세요. - 아이젠하워 매트릭스를 이용해서 체계적으로 일정을 관리할 수 있어요. - 1개의 앱에서 모든 일정을 효과적으로 관리해 보세요. - 다크 테마로 취향에 맞는 갓생을 즐겨보세요. ■ 아이젠하워 매트릭스 & 일정 메모 - 4개의 매트릭스를 마음껏 이용해 보세요. - 사용자 취향에 맞는 분류명/색상으로 설정할 수 있어요. - 새로운 일정을 추가할 때, 다양한 응원 메시지를 확인하는 재미가 있어요. - Task에 대한 세부적인 할 일까지 메모할 수 있어요. ■ 일정 알림 & 홈 화면 위젯 - 편리한 일정 알림으로 여러 일정을 놓치지 마세요. - 홈 화면 위젯으로, 일정을 쉽고 빠르게 확인하세요. ■ 9가지 색상 태그 - 알록달록한 8개 색상과 기본 1개 색상 태그를 설정해 보세요. - 회사, 집, 약속, 경조사, etc... 색상 태그로 다양한 일정을 쉽게 분류해 보세요. ■ 할 일 모니터 - 추가한 모든 일정을 한 눈에 확인할 수 있어요. - 8가지 색상 필터를 사용해서 원하는 분류의 일정만 확인해 보세요. - 남은 할 일, 오늘 할 일 필터를 이용해 보세요.
iomatrix
Organize your life using the Eisenhower Matrix framework. Prioritize tasks by urgency and importance, manage them across custom workspaces, and visualize your productivity with a unique heatmap. Seamlessly syncs across Apple devices.
- Eisenhower Matrix prioritization
- Customizable workspaces
- GitHub-style activity heatmap
- Cross-platform Apple device support
- iCloud sync and offline access
- Home and Lock Screen widgets
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iomatrix is an intuitive task management app built around the Eisenhower Matrix — the proven prioritization framework used by leaders worldwide. Organize your tasks into four quadrants based on urgency and importance, and focus on what truly matters. THE EISENHOWER MATRIX Prioritize with clarity using four quadrants: - Do: Urgent & Important — handle these first - Schedule: Important but Not Urgent — plan ahead - Delegate: Urgent but Not Important — hand these off - Delete: Neither Urgent nor Important — let these go TASK MANAGEMENT - Quick Add: Create tasks instantly with title, quadrant, and optional details - Drag & Drop: Move tasks between quadrants or reorder within them - Due Dates: Set deadlines with date and time reminders - Notes: Add detailed notes to any task - Links: Attach multiple URLs with auto-fetched titles - Backlog: Park undecided tasks in a dedicated backlog area - Archive: Browse completed tasks grouped by date WORKSPACES Organize tasks across different areas of your life: - Create custom workspaces with unique colors - Filter your matrix by workspace - Archive workspaces when projects are complete - 9-color palette for easy visual distinction ACTIVITY HEATMAP Visualize your productivity: - GitHub-style heatmap showing daily task completion - Per-workspace heatmaps with custom colors - Summary statistics (total and last 30 days) - Configurable week start (Sunday/Monday) CROSS-PLATFORM Seamlessly works across your Apple devices: - iPhone: Full matrix view with drag-and-drop - Mac: Native macOS app with menu bar widget - Apple Watch: View, add, edit, and manage tasks from your wrist - Widgets: Home screen, Lock Screen, and watch face widgets SYNC & PRIVACY - iCloud Sync: Your tasks stay in sync across all devices - Privacy First: All data stored in your personal iCloud — no third-party servers - Offline Ready: Works without internet, syncs when connected WIDGETS Stay on top of your tasks at a glance: - Small: 2x2 quadrant count grid - Medium: Horizontal summary with labels - Large: Full card layout with task counts - Lock Screen: Inline and rectangular accessory widgets - Watch Face: Circular, rectangular, corner, and donut chart complications Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.cr8rcho.com/projects/iomatrix/privacy
Screenshots
Verdict
The clearest difference is update cadence: iomatrix at every 6 days against Must's every 2 months. iomatrix also leads on review sentiment (100% vs 90%) and device support (5 vs 3). Must's advantage is iOS requirement (12.0 vs 26.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Must ships an update every 2 months, iomatrix every 6 days. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.
| Parameter | Must | iomatrix |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 90.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple Watch, Vision Pro — better |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 52 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Jichan Hwang | Joonhee Cho |
Customer experience
Must
iomatrix
In-app purchases
Must
No in-app purchases
iomatrix
No in-app purchases
