# Pro OnTime vs Shift Work Alarm

The clearest difference is in-app purchases: Pro OnTime at none against Shift Work Alarm's 2. Pro OnTime 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. Shift Work Alarm sells 2 in-app purchases, starting at $0.99 per month. Pro OnTime asks for nothing beyond the download.

Pro OnTime ships an update fortnightly, Shift Work Alarm every 9 days. The most recent releases landed on October 4, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Pro OnTime | Shift Work Alarm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shift-work-alarm-roster/id6808283069/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | — | Freemium |
| Size | 37 MB | 11 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [SIDEREAL TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/1481462615) | [秋丽 陈](https://appshunter.io/developer/6803737891) |

## What reviewers say

### Pro OnTime

[App page](https://appshunter.io/ios/app/pro-ontime/id6499000843)

**Features:** macOS Compatibility

**In-app purchases:** none


### Shift Work Alarm

[App page](https://appshunter.io/ios/app/shift-work-alarm-roster/id6808283069)

This alarm clock is designed for individuals with non-traditional work schedules. It offers customizable alarms that can automatically skip holidays and follow specific shift patterns, ensuring you wake up on workdays and rest on days off. It also includes a smart calendar and spoken reminders for various needs.

**Highlights:** Shift-based alarms, Automatic holiday skipping, Customizable rotation patterns, Spoken reminders, Smart calendar view, Rings through silent mode

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shift Pro Monthly | $0.99 | per month |
| Shift Alarm Pro | $9.99 | per year |


## Frequently asked questions

### Is Pro OnTime free?

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

### Is Shift Work Alarm free?

Shift Work Alarm is free to download, with in-app purchases available.

### Do Pro OnTime or Shift Work Alarm have ads?

Neither Pro OnTime nor Shift Work Alarm shows ads.

### Which is updated more often, Pro OnTime or Shift Work Alarm?

Pro OnTime ships an update fortnightly, and Shift Work Alarm every 9 days. Most recently, Pro OnTime was updated on October 4, 2026 and Shift Work Alarm on October 29, 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.*