# Calarm vs Event Alarm Sync

The clearest difference is price: Event Alarm Sync at Free against Calarm's $1.99. Event Alarm Sync also leads on update cadence (every 8 days vs every 6 weeks). Calarm's advantage is iOS requirement (18.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Event Alarm Sync is free to download; Calarm costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calarm ships an update every 6 weeks, Event Alarm Sync every 8 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Calarm | Event Alarm Sync |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[2.8 (13 ratings)](https://appshunter.io/ios/app/calarm/id509840570/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 45.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Monetization | Free | — |
| Size | 19 MB | 7 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [squishLogic](https://appshunter.io/developer/353387502) | [ARGO 34, INC.](https://appshunter.io/developer/6787890519) |

## What reviewers say

### Calarm

[App page](https://appshunter.io/ios/app/calarm/id509840570)

This app automatically wakes you before your first calendar event and alerts you to upcoming events throughout the day. It offers customizable alarms for all calendar entries, including all-day events and birthdays, with options to snooze, mute, or cancel specific alerts.

**Highlights:** Automatic alarms for calendar events, Bedtime reminders, Customizable alarm cancellation and muting, Quick alarms for naps, Event display on lock screen, Adjustable snooze interval, Sync settings across devices

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

**In-app purchases:** none


### Event Alarm Sync

[App page](https://appshunter.io/ios/app/event-alarm-sync/id6787890517)

**In-app purchases:** none


## Frequently asked questions

### Is Calarm free?

Calarm costs $1.99, with no in-app purchases.

### Is Event Alarm Sync free?

Event Alarm Sync is free to download, with no in-app purchases.

### Do Calarm or Event Alarm Sync have ads?

Neither Calarm nor Event Alarm Sync shows ads.

### Which is updated more often, Calarm or Event Alarm Sync?

Calarm ships an update every 6 weeks, and Event Alarm Sync every 8 days. Most recently, Calarm was updated on October 24, 2026 and Event Alarm Sync on October 24, 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.*