# Sleep Time+ Cycle Alarm Clock vs mountain sleep

The clearest difference is in-app purchases: mountain sleep at none against Sleep Time+ Cycle Alarm Clock's 10. mountain sleep also leads on ads (none vs shown) and device support (3 vs 1). Sleep Time+ Cycle Alarm Clock's advantage is update cadence (monthly vs every 20 months). On price and iOS requirement there is nothing between them.

Both are free to download. Sleep Time+ Cycle Alarm Clock sells 8 in-app purchases, starting at $4.99 per month. mountain sleep asks for nothing beyond the download.

Sleep Time+ Cycle Alarm Clock ships an update monthly, mountain sleep every 20 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Sleep Time+ Cycle Alarm Clock | mountain sleep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.5K ratings)](https://appshunter.io/ios/app/sleep-time-plus-cycle-alarm-clock/id498360026/reviews)** | — |
| Number of ratings | **2.5K** | — |
| Positive reviews | 68.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 20 months |
| Monetization | Subscription | — |
| Size | 185 MB | 26 MB |
| Requires iOS | 16.0 | **15.5** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Azumio Inc.](https://appshunter.io/developer/439290207) | [Kilian Eisenegger](https://appshunter.io/developer/1333678887) |

## What reviewers say

### Sleep Time+ Cycle Alarm Clock

[App page](https://appshunter.io/ios/app/sleep-time-plus-cycle-alarm-clock/id498360026)

Understand your sleep patterns and wake up feeling refreshed. This app tracks sleep cycles, offers soothing soundscapes for falling asleep, and measures resting heart rate without wearables. It provides detailed analysis and customizable alarms to optimize your sleep and wake-up experience.

**Highlights:** Sleep cycle analysis, Soothing soundscapes, Resting heart rate measurement, Smart alarm clock, Detailed sleep graphs, Apple Health integration

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per month |
| Premium | $8.99 | per month |
| Premium | $9.99 | per month |
| Premium | $9.99 | per month |
| Premium | $19.99 | per 3 months |
| Premium | $29.99 | per year |
| Premium | $29.99 | per year |
| Premium | $46.99 | per year |

**What reviewers like**

- 🚀 Helps track sleep patterns
- 👍 Gentle alarm wakes you up
- 🌊 Soundscapes help fall asleep
- 💤 Provides sleep quality insights

**What reviewers complain about**

- 🐛 Alarm issues (fails to go off, resets unexpectedly)
- 🔋 Battery drain
- 💰 Paywall for core features
- 🤖 Inaccurate sleep tracking

**Reported bugs**

- Crashes on startup
- Freezing issues
- Inconsistent alarm behavior
- Lost sleep data after updates

**Requested features**

- Heart rate monitoring integration
- Sleep data export and analysis
- Apple Watch companion app
- More customization options


### mountain sleep

[App page](https://appshunter.io/ios/app/mountain-sleep/id1572660929)

**In-app purchases:** none


## Frequently asked questions

### Is Sleep Time+ Cycle Alarm Clock free?

Sleep Time+ Cycle Alarm Clock is free to download, with in-app purchases available.

### Is mountain sleep free?

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

### Do Sleep Time+ Cycle Alarm Clock or mountain sleep have ads?

Sleep Time+ Cycle Alarm Clock shows ads; mountain sleep does not.

### Which is updated more often, Sleep Time+ Cycle Alarm Clock or mountain sleep?

Sleep Time+ Cycle Alarm Clock ships an update monthly, and mountain sleep every 20 months. Most recently, Sleep Time+ Cycle Alarm Clock was updated on November 1, 2026 and mountain sleep on November 3, 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.*