# AIZO RING vs Osprey Ring

The clearest difference is review sentiment: Osprey Ring at 100% against AIZO RING's 7%. Osprey Ring also leads on rating (5.0 vs 3.1). AIZO RING's advantage is ratings volume (44 vs 1) and iOS requirement (13.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Osprey Ring holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: AIZO RING has 44 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 7% of AIZO RING's written reviews are positive against 100% of Osprey Ring's.

AIZO RING ships an update monthly, Osprey Ring fortnightly. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | AIZO RING | Osprey Ring |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (44 ratings)](https://appshunter.io/ios/app/aizo-ring/id1643282888/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/osprey-ring/id6761705829/reviews)** |
| Number of ratings | **44** | 1 |
| Positive reviews | 6.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | Free |
| Size | 147 MB | 67 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen eIoT Technology Co., Ltd.](https://appshunter.io/developer/1020558089) | [INGENIOUS TECHNOLOGY LLC](https://appshunter.io/developer/1616301096) |

## What reviewers say

### AIZO RING

[App page](https://appshunter.io/ios/app/aizo-ring/id1643282888)

This app helps you track and analyze your exercise and sleep patterns using data from smart devices. It offers insights into your body's status and provides professional guidance to improve your physical condition and sleep quality.

**Highlights:** Exercise recording and data analysis, Sleep monitoring and analysis, Exercise data visualization, Professional sleep statistics, HealthKit integration for steps and calories, Personalized health guidance

**Features:** macOS Compatibility

**In-app purchases:** none


### Osprey Ring

[App page](https://appshunter.io/ios/app/osprey-ring/id6761705829)

Track daily activity and sleep patterns with detailed insights and progress charts. Seamlessly connect to your smart ring for automatic data synchronization and view wellness trends over time. Includes smart features like widgets and cloud backup.

**Highlights:** Detailed sleep stage tracking, Activity and step monitoring, Seamless smart ring connection, Intuitive wellness insights dashboard, Home screen widgets, Cloud data backup

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

**In-app purchases:** none


## Frequently asked questions

### Is AIZO RING free?

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

### Is Osprey Ring free?

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

### Which has better reviews, AIZO RING or Osprey Ring?

Osprey Ring is rated higher. AIZO RING averages 3.1 out of 5 from 44 ratings, while Osprey Ring averages 5.0 from 1 ratings.

### Do AIZO RING or Osprey Ring have ads?

Neither AIZO RING nor Osprey Ring shows ads.

### Which is updated more often, AIZO RING or Osprey Ring?

AIZO RING ships an update monthly, and Osprey Ring fortnightly. Most recently, AIZO RING was updated on September 21, 2026 and Osprey Ring on September 18, 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.*