# Loop QC vs CalSyncAlert

The clearest difference is in-app purchases: Loop QC at none against CalSyncAlert's 2. Loop QC also leads on iOS requirement (15.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CalSyncAlert sells 2 in-app purchases, starting at $0.99 per month. Loop QC asks for nothing beyond the download.

Loop QC ships an update fortnightly, CalSyncAlert every 2 weeks. The most recent releases landed on October 9, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Loop QC | CalSyncAlert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/calsyncalert-calendar-alarm/id6756097650/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 6 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Loop 4 Solutions](https://appshunter.io/developer/1418729643) | [kosuke konuma](https://appshunter.io/developer/1767116232) |

## What reviewers say

### Loop QC

[App page](https://appshunter.io/ios/app/loop-qc/id6474789376)

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

**In-app purchases:** none


### CalSyncAlert

[App page](https://appshunter.io/ios/app/calsyncalert-calendar-alarm/id6756097650)

This app ensures you never miss important calendar events by converting them into unignorable, full-screen alarms. It syncs automatically with your existing calendars and offers customizable alert options for a more reliable reminder system than standard notifications.

**Highlights:** Automatic alarm sync from multiple calendars, Full-screen, unmissable alerts, Smart snooze options, Multiple alarm sound choices, Home screen widget with countdown, Background sync for updated alarms, Support for recurring events

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Full Version | $7.99 | one-time |


## Frequently asked questions

### Is Loop QC free?

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

### Is CalSyncAlert free?

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

### Do Loop QC or CalSyncAlert have ads?

Neither Loop QC nor CalSyncAlert shows ads.

### Which is updated more often, Loop QC or CalSyncAlert?

Loop QC ships an update fortnightly, and CalSyncAlert every 2 weeks. Most recently, Loop QC was updated on October 9, 2026 and CalSyncAlert on October 19, 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.*