OTKAX vs Power Queen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OTKAX
This app connects to your device via Bluetooth to control and test equipment. It also includes a feature to remind users to stay hydrated throughout the day.
- Bluetooth device connection
- Equipment control
- Equipment testing
- Water intake reminders
Read full descriptionHide full description
Connect the device via Bluetooth; Control and test the equipment of the brand; Remind users to drink water.
Power Queen
Monitor and manage your energy storage battery devices in real-time via Bluetooth. Achieve a smart lifestyle with reliable energy management solutions, making your life more convenient and efficient from anywhere.
- Real-time battery monitoring
- Bluetooth device connection
- Energy storage management
- Smart lifestyle integration
- Remote energy solutions
Read full descriptionHide full description
Power Queen, your perfect companion for smart living! Through Bluetooth connection, we provide real-time monitoring and management for your energy storage battery devices, helping you achieve a smart lifestyle. No matter where you are, Power Queen can provide you with reliable energy management solutions, making your life more convenient and efficient.
Screenshots
Verdict
The clearest difference is review sentiment: OTKAX at 50% against Power Queen's 25%. Power Queen's advantage is rating (2.6 vs 2.3) and ratings volume (40 vs 3). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Power Queen holds the better App Store score, 2.6 against 2.3. That said, the two scores are not equally well evidenced: Power Queen has 40 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 50% of OTKAX's written reviews are positive against 25% of Power Queen's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on June 1, 2026 and August 25, 2026 respectively.
| Parameter | OTKAX | Power Queen |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) | 2.6 (40 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 24.5% of reviews |
| Number of ratings | 3 | 40 — better |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 20 MB | 47 MB |
| Age rating | 4+ | 17+ |
| Developer | 水金 陈 | Shenzhen Lizu Shidai Technology |
Customer experience
OTKAX
Power Queen
In-app purchases
OTKAX
No in-app purchases
Power Queen
No in-app purchases
