# CannotWait vs Must

The clearest difference is rating: CannotWait at 5.0 against Must's 3.0. CannotWait also leads on in-app purchases (none vs 2) and ratings volume (3 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Must sells 2 one-off in-app purchases. CannotWait asks for nothing beyond the download.

CannotWait holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

CannotWait ships an update monthly, Must every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CannotWait | Must |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/cannotwait-day-counter/id1534308429/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/must-ring-calendar-alarm/id6787832178/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 26 MB | 3 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vincent Friedrich](https://appshunter.io/developer/592821590) | [紫妍 连](https://appshunter.io/developer/1869185039) |

## What reviewers say

### CannotWait

[App page](https://appshunter.io/ios/app/cannotwait-day-counter/id1534308429)

Track important upcoming and past events with a modern, user-friendly countdown and day counter. See precise days remaining or elapsed, with detailed time views and customizable designs. Share event snapshots and use home screen widgets.

**Highlights:** Precise day countdowns, Days since/day counter, Detailed time view (seconds to days), Event photo collection, Shareable event snapshots, Home and lock screen widgets, Customizable design

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Must

[App page](https://appshunter.io/ios/app/must-ring-calendar-alarm/id6787832178)

Transform calendar events and future dates into system alarms that ring even on Silent or Focus modes. Set one-time alarms for appointments or tasks, with options for early reminders and customizable snooze durations. Unlock advanced features like unlimited alarms and recurring options with a one-time purchase.

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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

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


## Frequently asked questions

### Is CannotWait free?

CannotWait is free to download, with no in-app purchases.

### Is Must free?

Must is free to download, with in-app purchases available.

### Which has better reviews, CannotWait or Must?

CannotWait is rated higher. CannotWait averages 5.0 out of 5 from 3 ratings, while Must averages 3.0 from 1 ratings.

### Do CannotWait or Must have ads?

Neither CannotWait nor Must shows ads.

### Which is updated more often, CannotWait or Must?

CannotWait ships an update monthly, and Must every 2 months. Most recently, CannotWait was updated on November 3, 2026 and Must on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*