# KeyFile vs Alarm One

The clearest difference is in-app purchases: KeyFile at none against Alarm One's 3. KeyFile also leads on iOS requirement (11.0 vs 26.0). Alarm One's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Alarm One sells 3 in-app purchases, starting at $1.99 per month. KeyFile asks for nothing beyond the download.

KeyFile ships an update every 3 months, Alarm One every 2 weeks. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | KeyFile | Alarm One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (16 ratings)](https://appshunter.io/ios/app/alarm-one-shift-alarm-clock/id6748434148/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 138 MB | 82 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wuhan Tianyu Software Co., Ltd.](https://appshunter.io/developer/867910657) | [Qingzhe Wu](https://appshunter.io/developer/1570122439) |

## What reviewers say

### KeyFile

[App page](https://appshunter.io/ios/app/keyfile/id950959896)

**Features:** macOS Compatibility

**In-app purchases:** none


### Alarm One

[App page](https://appshunter.io/ios/app/alarm-one-shift-alarm-clock/id6748434148)

Manage complex schedules with flexible alarms for rotating shifts, international time zones, and recurring events. Organize alarms into groups and control them with a single tap. Features custom wake-up sounds, widgets, timers, and stopwatch functionality.

**Highlights:** Rotating shift alarms, World clock and time zones, Alarm grouping, Custom wake-up sounds, Home and lock screen widgets, Timers and stopwatch, iCloud sync across devices

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $1.99 | per month |
| Premium (Yearly) | $6.99 | per year |
| Lifetime premium | $16.99 | one-time |


## Frequently asked questions

### Is KeyFile free?

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

### Is Alarm One free?

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

### Do KeyFile or Alarm One have ads?

Neither KeyFile nor Alarm One shows ads.

### Which is updated more often, KeyFile or Alarm One?

KeyFile ships an update every 3 months, and Alarm One every 2 weeks. Most recently, KeyFile was updated on November 1, 2026 and Alarm One on November 5, 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.*