LuckRing vs Kstert
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.
Kstert
Control Bluetooth devices and connect with friends through integrated social features. Discover new and exciting ways to interact with your devices and community.
- Bluetooth device control
- Integrated social features
- Discover new gameplay
- Connect with friends
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蓝牙设备操控工具的基础上，集成好友社交，更多新奇玩法等待您的发现！
Screenshots
Verdict
The clearest difference is rating: Kstert at 2.9 against LuckRing's 2.2. Kstert also leads on in-app purchases (none vs 5) and review sentiment (37% vs 23%). LuckRing's advantage is ratings volume (345 vs 36). On price, update cadence, ads and device support 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. Kstert asks for nothing beyond the download.
Kstert holds the better App Store score, 2.9 against 2.2. That said, the two scores are not equally well evidenced: LuckRing has 345 ratings behind it against 36, so its average is the more settled of the two. Written reviews point the same way: 23% of LuckRing's written reviews are positive against 37% of Kstert's.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.
| Parameter | LuckRing | Kstert |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (345 ratings) | 2.9 (36 ratings) — better |
| Positive reviews | 22.6% of reviews | 36.8% of reviews — better |
| Number of ratings | 345 — better | 36 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 130 MB | 105 MB |
| Age rating | 4+ | 17+ |
| Developer | Shenzhen Coolwear Technology Co., LTD | Shenzhen Aierweile Electronics Co., Ltd |
Customer experience
LuckRing
Kstert
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
Kstert
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
Kstert
No in-app purchases
