LuckRing vs osaring sizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LuckRing
This smart wearable device combines technology and fashion to offer users convenient functions and personalized experiences. It is important to note that this is not a professional medical device, and its data is for reference only.
- Smart wearable device
- Combines technology and fashion
- Convenient functions
- Personalized experiences
- Reference health data
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The smart ring is a smart wearable device that combines advanced technology and fashionable design, aiming to provide users with a variety of convenient functions and personalized experiences. This product is not a professional medical device. The measurement data and results are for reference only and cannot be used as the basis for clinical diagnosis and treatment. Before using this application and making any medical decisions, please consult your doctor's advice.
osaring sizer
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Used for measuring ring size
Screenshots
Verdict
The clearest difference is in-app purchases: osaring sizer at none against LuckRing's 5. osaring sizer also leads on update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. LuckRing sells 5 one-off in-app purchases. osaring sizer asks for nothing beyond the download.
LuckRing ships an update every 3 weeks, osaring sizer every 4 days. The most recent releases landed on October 11, 2026 and October 1, 2026 respectively.
| Parameter | LuckRing | osaring sizer |
|---|---|---|
| Price | Free | Free |
| Rating | 2.1 (331 ratings) — better | — |
| Positive reviews | 22.7% of reviews | — |
| Number of ratings | 331 — better | — |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15 |
| Further details — not scored | ||
| Size | 130 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Coolwear Technology Co., LTD | Shenzhen Huoyan Intelligence Co.,Ltd |
Bugs and requests
LuckRing
Reported bugs
4 issues- App login/registration issues
- Disconnection problems
- Data loss after app updates
- Inaccurate step/activity tracking
Requested features
4 requests- Option to change temperature unit
- Weekly/monthly health data reporting
- Automatic nap detection
- Ability to sync with Apple Health
osaring sizer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
LuckRing
- 次卡$0.99
- Vip 月卡$1.99
- 季卡$2.99
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- Vip 年卡$3.99
- 永久卡$6.99
osaring sizer
No in-app purchases
