# OTKAX vs Power Queen

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.

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.

## The numbers

| Metric | OTKAX | Power Queen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/otkax/id1671817443/reviews) | **[2.6 (40 ratings)](https://appshunter.io/ios/app/power-queen/id6482988823/reviews)** |
| Number of ratings | 3 | **40** |
| Positive reviews | **50.0% of reviews** | 24.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 20 MB | 47 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [水金 陈](https://appshunter.io/developer/1634599571) | [Shenzhen Lizu Shidai Technology](https://appshunter.io/developer/1698437611) |

## What reviewers say

### OTKAX

[App page](https://appshunter.io/ios/app/otkax/id1671817443)

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.

**Highlights:** Bluetooth device connection, Equipment control, Equipment testing, Water intake reminders

**Features:** macOS Compatibility

**In-app purchases:** none


### Power Queen

[App page](https://appshunter.io/ios/app/power-queen/id6482988823)

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.

**Highlights:** Real-time battery monitoring, Bluetooth device connection, Energy storage management, Smart lifestyle integration, Remote energy solutions

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

**In-app purchases:** none


## Frequently asked questions

### Is OTKAX free?

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

### Is Power Queen free?

Power Queen is free to download, with no in-app purchases.

### Which has better reviews, OTKAX or Power Queen?

Power Queen is rated higher. OTKAX averages 2.3 out of 5 from 3 ratings, while Power Queen averages 2.6 from 40 ratings.

### Do OTKAX or Power Queen have ads?

Neither OTKAX nor Power Queen shows ads.

### Which is updated more often, OTKAX or Power Queen?

OTKAX ships an update every 3 weeks, and Power Queen every 3 weeks. Most recently, OTKAX was updated on June 1, 2026 and Power Queen on August 25, 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.*