# ALPHA PRO vs Calm Sleep

The clearest difference is price: Calm Sleep at Free against ALPHA PRO's $3.99. Calm Sleep also leads on update cadence (every 6 days vs every 34 months). ALPHA PRO's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On ads there is nothing between them.

Calm Sleep is free to download; ALPHA PRO costs $3.99 up front. Calm Sleep sells 3 in-app purchases, starting at $19.99 per month. ALPHA PRO asks for nothing beyond the download.

ALPHA PRO ships an update every 34 months, Calm Sleep every 6 days. The most recent releases landed on October 29, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | ALPHA PRO | Calm Sleep |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[4.7 (3.7K ratings)](https://appshunter.io/ios/app/calm-sleep-rest-and-relax/id6714481749/reviews)** |
| Number of ratings | — | **3.7K** |
| Positive reviews | — | 52.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 6 days** |
| Monetization | — | Subscription |
| Size | 2 MB | 103 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | +4 |
| Developer | [Digilog Corporation](https://appshunter.io/developer/888040971) | [Calm.com](https://appshunter.io/developer/571800813) |

## What reviewers say

### ALPHA PRO

[App page](https://appshunter.io/ios/app/alpha-pro/id990097326)

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

**In-app purchases:** none


### Calm Sleep

[App page](https://appshunter.io/ios/app/calm-sleep-rest-and-relax/id6714481749)

This app offers a comprehensive sleep support system with over 300 hours of content, including narrated stories, music, and soundscapes. It helps users develop better sleep habits through guided routines, breathwork, and sleep plans, with features for tracking and analyzing sleep patterns.

**Highlights:** Sleep Stories, Music & Soundscapes, Breathwork Exercises, Sleep Plans, Sleep Tracking & Insights, Favorites & Timers

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calm Sleep Premium | $19.99 | per month |
| Calm Sleep Premium | $69.99 | per year |
| Calm Sleep Premium | $69.99 | per year |

**What reviewers like**

- 👍 Great app for sleep
- 🚀 Helpful tips and plans
- 💤 Soothing soundscapes and sleep stories
- 👌 Clean and intuitive design


## Frequently asked questions

### Is ALPHA PRO free?

ALPHA PRO costs $3.99, with no in-app purchases.

### Is Calm Sleep free?

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

### Do ALPHA PRO or Calm Sleep have ads?

Neither ALPHA PRO nor Calm Sleep shows ads.

### Which is updated more often, ALPHA PRO or Calm Sleep?

ALPHA PRO ships an update every 34 months, and Calm Sleep every 6 days. Most recently, ALPHA PRO was updated on October 29, 2026 and Calm Sleep on November 8, 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.*