# Must-Ring: Calendar Alarm — Appointment & Task Reminders

> Calendar event and future date alarm utility with optional Pro upgrade. (iPhone/iPad app by 紫妍 连.)

- Source: https://appshunter.io/ios/app/must-ring-calendar-alarm/id6787832178 (this page in markdown: same URL + `.md`)
- Developer: [紫妍 连](https://appshunter.io/developer/1869185039)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 3.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 26.0 · 3 MB
- Languages: American English
- Released: 2026-08-13
- Data updated: 2026-10-17
- Monetization: free with in-app purchases

## What is Must?

Turn appointments and calendar events into alarms that ring through Silent and Focus. Choose an event from Apple Calendar, or set an alarm for any future date and time.

CALENDAR EVENTS THAT RING
• Browse upcoming events from Apple Calendar
• Choose an event and create a separate system alarm
• Add an optional early heads-up before the event
• Calendar details are copied when you create the alarm; later calendar edits do not update it automatically

ALARMS FOR ANY FUTURE DATE
• Set a one-time alarm for an appointment, meeting, task, or deadline
• Choose the date and time you need
• Stop the alarm or snooze for 5 minutes
• Search and review your active and past alarms

FREE TO START
• Keep up to two active alarms
• Create manual or calendar-based one-time alarms
• Add a 5-minute or 10-minute early heads-up
• View local alarm activity insights

MUST-RING PRO — ONE-TIME PURCHASE
• Keep unlimited active alarms
• Repeat daily, on weekdays, or weekly on a selected weekday
• Choose custom early heads-up timing
• Snooze for 10, 15, 30 minutes, or a custom duration
• Explore private calendar insights for your recent schedule

One-time purchase. No subscription.

PRIVATE BY DESIGN
Alarm titles, notes, calendar names, event details, and scheduled times stay on your device. Calendar access is used to create alarms and calculate insights locally. Anonymous product analytics may be used to improve the app, but it does not include your calendar or alarm content. No account is required.

Requires iOS 26 or later. Must-Ring uses Apple’s AlarmKit. Alarm behavior depends on Alarm permission, successful scheduling, and device settings. Must-Ring is not intended for medical, emergency, or safety-critical alerting.

## Key features

- Calendar events as alarms
- Alarms for any future date
- Early heads-up notifications
- Customizable snooze durations
- Unlimited alarms (Pro)
- Recurring alarms (Pro)

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Must-Ring Pro | $9.99 | one-time |
| Must-Ring Pro (Founding Offer) | $4.99 | one-time |


## Is Must safe?

Not enough ratings yet to assess Must.

## Is Must legit?

Must-Ring: Calendar Alarm appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Must is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Must

### How does Must-Ring turn calendar events into alarms?

Must-Ring allows you to select an event from your Apple Calendar and create a separate system alarm for it. You can also set an optional early heads-up before the event begins.

### Can Must-Ring alarms ring when my iPhone is on Silent or Focus mode?

Yes, Must-Ring is designed to ring through Silent and Focus modes, ensuring you don't miss important alerts.

### What are the limitations of the free version of Must-Ring?

The free version of Must-Ring allows you to keep up to two active alarms at a time. You can create manual or calendar-based one-time alarms and add a 5 or 10-minute early heads-up.

### What features are included in Must-Ring Pro?

Must-Ring Pro, a one-time purchase, offers unlimited active alarms, recurring alarm options (daily, weekdays, weekly), custom early heads-up timing, and customizable snooze durations.

### Does Must-Ring have ads?

Must-Ring does not contain advertisements. The app offers a free tier with limitations and an optional one-time purchase for advanced features.

### Is Must-Ring suitable for medical or emergency alerts?

No, Must-Ring is not intended for medical, emergency, or safety-critical alerting. Its functionality relies on standard iOS alarm behavior and permissions.

### How often is Must-Ring updated?

The latest version of Must-Ring is 1.1.0, last updated on October 5, 2026. Updates typically address bug fixes and feature enhancements.

### What devices does Must-Ring support?

Must-Ring currently supports iPhone devices and requires iOS 13 or later. It utilizes Apple's AlarmKit for its alarm functionality.

## Version history (last 2 releases)

### 1.1.0 — 2026-10-05

User experience improvements.

### 1.0.0 — 2026-08-13

No release notes.

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All apps by 紫妍 连: https://appshunter.io/developer/1869185039

## Related topics

[must ring](https://appshunter.io/ios/topics/must-ring) · [my calendar alarms](https://appshunter.io/ios/topics/my-calendar-alarms)

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*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 2026-10-17.*