# USASF EP vs ShiftAlarm

The clearest difference is update cadence: ShiftAlarm at weekly against USASF EP's every 5 months. USASF EP's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

USASF EP ships an update every 5 months, ShiftAlarm weekly. The most recent releases landed on September 14, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | USASF EP | ShiftAlarm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Size | 29 MB | 16 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [USASF](https://appshunter.io/developer/330171202) | [明 刘](https://appshunter.io/developer/6790996791) |

## What reviewers say

### USASF EP

[App page](https://appshunter.io/ios/app/usasf-ep/id1459676989)

**Features:** macOS Compatibility

**In-app purchases:** none


### ShiftAlarm

[App page](https://appshunter.io/ios/app/shiftalarm-work-schedule/id6791030721)

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

**In-app purchases:** none


## Frequently asked questions

### Is USASF EP free?

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

### Is ShiftAlarm free?

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

### Do USASF EP or ShiftAlarm have ads?

Neither USASF EP nor ShiftAlarm shows ads.

### Which is updated more often, USASF EP or ShiftAlarm?

USASF EP ships an update every 5 months, and ShiftAlarm weekly. Most recently, USASF EP was updated on September 14, 2026 and ShiftAlarm on September 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.*