# AIZO RING vs ai

The clearest difference is rating: AIZO RING at 3.1 against ai's 1.7. AIZO RING also leads on in-app purchases (none vs 10) and review sentiment (10% vs 0%). ai's advantage is update cadence (every 2 weeks vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. ai sells 8 in-app purchases, starting at $1.99 per month. AIZO RING asks for nothing beyond the download.

AIZO RING holds the better App Store score, 3.1 against 1.7. Both are backed by a comparable volume of ratings — 47 and 14 respectively. Written reviews point the same way: 10% of AIZO RING's written reviews are positive against 0% of ai's.

AIZO RING ships an update monthly, ai every 2 weeks. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | AIZO RING | ai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (47 ratings)](https://appshunter.io/ios/app/aizo-ring/id1643282888/reviews)** | [1.7 (14 ratings)](https://appshunter.io/ios/app/ai-calendar/id6743742645/reviews) |
| Number of ratings | **47** | 14 |
| Positive reviews | **9.7% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 147 MB | 84 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 9+ |
| Developer | [Shenzhen eIoT Technology Co., Ltd.](https://appshunter.io/developer/1020558089) | [Dongguan Huimingxin Project Investment Co., Ltd](https://appshunter.io/developer/1802150965) |

## 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


### ai

[App page](https://appshunter.io/ios/app/ai-calendar/id6743742645)

Manage your smart display and personal schedules with this app. Control device features like video playback and photo albums, or organize your daily tasks, shopping lists, and chores. Sync with popular calendar services for a unified view.

**Highlights:** AI Assistant with voice control, Video playback and photo album management, Calendar syncing (Google, Apple, Outlook), Customizable lists and categories, Weather forecasts for events, Chore chart assignment and tracking

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One month Premium membership | $1.99 | per month |
| One month AI member | $2.99 | per month |
| 10GB cloud memory | $4.99 | per year |
| 10GB Cloud Memory | $4.99 | per year |
| 20GB cloud memory | $9.99 | per year |
| 50GB cloud memory | $15.99 | per year |
| Premium member year | $19.99 | per year |
| Ai Member year | $39.99 | per year |


## Frequently asked questions

### Is AIZO RING free?

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

### Is ai free?

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

### Which has better reviews, AIZO RING or ai?

AIZO RING is rated higher. AIZO RING averages 3.1 out of 5 from 47 ratings, while ai averages 1.7 from 14 ratings.

### Do AIZO RING or ai have ads?

Neither AIZO RING nor ai shows ads.

### Which is updated more often, AIZO RING or ai?

AIZO RING ships an update monthly, and ai every 2 weeks. Most recently, AIZO RING was updated on October 22, 2026 and ai on October 28, 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.*