# SnoreO2 vs Morpheus Training

The clearest difference is review sentiment: Morpheus Training at 58% against SnoreO2's 13%. Morpheus Training also leads on rating (4.9 vs 3.1) and ratings volume (630 vs 16). SnoreO2's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (8.0 vs 15.1). 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.

Morpheus Training holds the better App Store score, 4.9 against 3.1. That said, the two scores are not equally well evidenced: Morpheus Training has 630 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 13% of SnoreO2's written reviews are positive against 58% of Morpheus Training's.

SnoreO2 ships an update monthly, Morpheus Training every 11 days. The most recent releases landed on August 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | SnoreO2 | Morpheus Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (16 ratings)](https://appshunter.io/ios/app/snoreo2/id1224541466/reviews) | **[4.9 (630 ratings)](https://appshunter.io/ios/app/morpheus-training/id1259741445/reviews)** |
| Number of ratings | 16 | **630** |
| Positive reviews | 13.3% of reviews | **58.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 21 MB | 71 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Viatom Technology Co., Ltd.](https://appshunter.io/developer/888642115) | [Morpheus Labs INC](https://appshunter.io/developer/1259741444) |

## What reviewers say

### SnoreO2

[App page](https://appshunter.io/ios/app/snoreo2/id1224541466)

This app pairs with a wearable device to monitor your oxygen levels, heart rate, and motion during sleep. It analyzes your sleep patterns and uses smart vibration to help alleviate breathing issues caused by snoring.

**Highlights:** Bluetooth data history storage, Real-time oxygen and heart rate monitoring, Graphic sleep reports with analysis, Short/long term trend tracking, Smart vibration threshold and strength settings, Device firmware upgrades

**Features:** macOS Compatibility

**In-app purchases:** none


### Morpheus Training

[App page](https://appshunter.io/ios/app/morpheus-training/id1259741445)

This app optimizes cardio training and recovery by providing personalized heart rate zones and weekly targets. It uses HRV data to guide intensity and volume, helping users improve fitness and conditioning with zone-based interval training.

**Highlights:** Personalized heart rate zones, CardioSmart features, Zone-based interval training (ZBIT), Weekly heart rate zone targets, Daily recovery score, Integrates with wearables and Apple Health Kit

**In-app purchases:** none


## Frequently asked questions

### Is SnoreO2 free?

SnoreO2 is free to download, with no in-app purchases.

### Is Morpheus Training free?

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

### Which has better reviews, SnoreO2 or Morpheus Training?

Morpheus Training is rated higher. SnoreO2 averages 3.1 out of 5 from 16 ratings, while Morpheus Training averages 4.9 from 630 ratings.

### Do SnoreO2 or Morpheus Training have ads?

Neither SnoreO2 nor Morpheus Training shows ads.

### Which is updated more often, SnoreO2 or Morpheus Training?

SnoreO2 ships an update monthly, and Morpheus Training every 11 days. Most recently, SnoreO2 was updated on August 13, 2026 and Morpheus Training on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*