Lock Screen Calendar vs Must
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lock Screen Calendar
This app helps you manage your time and overcome procrastination by organizing tasks based on importance and urgency. It offers a focus timer to help you complete tasks efficiently and reduce stress.
- Priority setting by importance and urgency
- Step-by-step task organization
- Time allocation for tasks
- Focus timer for task completion
- Stress reduction and productivity boost
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[Say Goodbye to Procrastination] The Eisenhower Matrix is a proven way to manage your time and beat procrastination. Sort your tasks by importance and urgency, focus on what matters first, and stop feeling overwhelmed. [Key Features] - Set priorities: Organize tasks by importance and urgency. - Manage your time: Fit tasks into your day and handle them efficiently. - Focus Timer: Stay focused and finish tasks within set sessions. - Everywhere: Home and Lock Screen widgets, synced across iPhone, iPad, and Mac. Many users say it helped them reduce stress and boost their productivity. Make your day clearer with CoreTask. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.
Screenshots
Verdict
The clearest difference is rating: Lock Screen Calendar at 5.0 against Must's 4.0. Lock Screen Calendar also leads on update cadence (every 3 days vs every 2 months) and ratings volume (18 vs 1). Must's advantage is in-app purchases (none vs 6) and iOS requirement (12.0 vs 18.0). On price, review sentiment, ads and device support 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. Lock Screen Calendar sells 6 in-app purchases, starting at $1.99 per month. Must asks for nothing beyond the download.
Lock Screen Calendar holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Lock Screen Calendar has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 88% of Lock Screen Calendar's written reviews are positive against 90% of Must's, so the app with the better star average is not the one people write more warmly about.
Lock Screen Calendar ships an update every 3 days, Must every 2 months. The most recent releases landed on September 29, 2026 and August 26, 2026 respectively.
| Parameter | Lock Screen Calendar | Must |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (18 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 88.0% of reviews | 90.0% of reviews — better |
| Number of ratings | 18 — better | 1 |
| Update frequency | Every 3 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 42 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Gridus Co. | Jichan Hwang |
Customer experience
Lock Screen Calendar
Must
In-app purchases
Lock Screen Calendar
- Monthly Plan$1.991 Month
- Monthly Plan$4.491 Month
- Weekly Plan$4.497 Days
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- Annual Plan$29.991 Year
- Lifetime Plan$29.99
- Lifetime Access$39.99
Must
No in-app purchases
Questions
Is Lock Screen Calendar free?
Is Must free?
Which has better reviews, Lock Screen Calendar or Must?
Do Lock Screen Calendar or Must have ads?
Which is updated more often, Lock Screen Calendar or Must?
Other comparisons
