# Sleep Music Timer vs Alertcal

The clearest difference is price: Sleep Music Timer at Free against Alertcal's $1.99. Sleep Music Timer also leads on iOS requirement (12.0 vs 26.0). Alertcal's advantage is in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 8 months). On ads and device support there is nothing between them.

Sleep Music Timer is free to download; Alertcal costs $1.99 up front. Sleep Music Timer sells 1 one-off in-app purchase. Alertcal asks for nothing beyond the download.

Sleep Music Timer ships an update every 8 months, Alertcal every 3 weeks. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Sleep Music Timer | Alertcal |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.5 (7.4K ratings)](https://appshunter.io/ios/app/sleep-music-timer/id928930388/reviews)** | — |
| Number of ratings | **7.4K** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 15 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Maksim Tolstov](https://appshunter.io/developer/928930387) | [Scott Foster](https://appshunter.io/developer/1678898392) |

## What reviewers say

### Sleep Music Timer

[App page](https://appshunter.io/ios/app/sleep-music-timer/id928930388)

Drift off to sleep with your favorite tunes. This utility app stops music playback after a set duration, conserving your device's battery. Enjoy uninterrupted rest with a simple, ad-free experience.

**Highlights:** Set custom sleep timer, Automatic music stop, Device battery saving, Ad-free experience, Minimal brightness display

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee cup | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Works as promised
- 💤 Helps with sleep
- 🔋 Saves battery
- 🎵 Works with any music app

**What reviewers complain about**

- 🕰️ Limited timer options (only up to 1 hour)
- 🔆 Bright screen after timer ends
- 🔒 Can't lock phone while using

**Reported bugs**

- Timer doesn't always work as expected
- Music sometimes continues playing after timer ends

**Requested features**

- Longer timer options (90 minutes, 2 hours)
- Fade out music instead of abrupt stop
- Automatically turn off phone after timer ends


### Alertcal

[App page](https://appshunter.io/ios/app/alertcal/id6759479765)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sleep Music Timer free?

Sleep Music Timer is free to download, with in-app purchases available.

### Is Alertcal free?

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

### Do Sleep Music Timer or Alertcal have ads?

Neither Sleep Music Timer nor Alertcal shows ads.

### Which is updated more often, Sleep Music Timer or Alertcal?

Sleep Music Timer ships an update every 8 months, and Alertcal every 3 weeks. Most recently, Sleep Music Timer was updated on October 16, 2026 and Alertcal on October 10, 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.*