# Kstert vs ULTIMEA

The clearest difference is rating: ULTIMEA at 4.8 against Kstert's 2.9. ULTIMEA also leads on ratings volume (840 vs 36) and review sentiment (51% vs 37%). 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.

ULTIMEA holds the better App Store score, 4.8 against 2.9. That said, the two scores are not equally well evidenced: ULTIMEA has 840 ratings behind it against 36, so its average is the more settled of the two. Written reviews point the same way: 37% of Kstert's written reviews are positive against 51% of ULTIMEA's.

Kstert ships an update every 3 weeks, ULTIMEA every 5 weeks. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Kstert | ULTIMEA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (36 ratings)](https://appshunter.io/ios/app/kstert/id6476297297/reviews) | **[4.8 (840 ratings)](https://appshunter.io/ios/app/ultimea/id6476897438/reviews)** |
| Number of ratings | 36 | **840** |
| Positive reviews | 36.8% of reviews | **50.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 105 MB | 69 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Aierweile Electronics Co., Ltd](https://appshunter.io/developer/1777735349) | [Dynanic Inc.](https://appshunter.io/developer/1728181538) |

## What reviewers say

### Kstert

[App page](https://appshunter.io/ios/app/kstert/id6476297297)

Control Bluetooth devices and connect with friends through integrated social features. Discover new and exciting ways to interact with your devices and community.

**Highlights:** Bluetooth device control, Integrated social features, Discover new gameplay, Connect with friends

**Features:** macOS Compatibility

**In-app purchases:** none


### ULTIMEA

[App page](https://appshunter.io/ios/app/ultimea/id6476897438)

Enhance your audio experience with smart controls and powerful EQ customization. This app allows for precise device management and regular updates, ensuring a personalized sound setup for your soundbar.

**Highlights:** Quick soundbar setup, Enhanced audio with smart controls, Powerful EQ customization, 121 preset EQ matrices, 10-band equalizer settings, Remote control support, Over-the-air (OTA) updates

**In-app purchases:** none

**What reviewers like**

- ✨ Amazing sound quality
- 🔊 Great bass
- 📱 Good app functionality
- 🔌 Easy setup and connection
- 💰 Excellent value for money

**What reviewers complain about**

- ❌ App not connecting to devices
- 🎛️ Limited app capabilities
- 📉 Volume control issues (slider)
- 🚫 Missing essential volume adjustments
- 🔌 Bluetooth connection drops

**Reported bugs**

- App not connecting to various models (D50, D60, M4T, S60, S70, S80, Nova S70, Nova S40, Apollo S50, Poseidon D80, Poseidon D60, Poseidon Nova S80, Solo B30 Pro)
- Bluetooth connection drops
- Optimal mode works on and off
- Demote random stopped working
- App requires an account to run

**Requested features**

- Add bass, mid-range, treble, and surround volume adjustments to the app
- Implement up/down arrow volume controls or number input instead of a slider
- Add more options for RGB lights customization
- Add Alexa support for voice control of volume
- Dark mode option for the app


## Frequently asked questions

### Is Kstert free?

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

### Is ULTIMEA free?

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

### Which has better reviews, Kstert or ULTIMEA?

ULTIMEA is rated higher. Kstert averages 2.9 out of 5 from 36 ratings, while ULTIMEA averages 4.8 from 840 ratings.

### Do Kstert or ULTIMEA have ads?

Neither Kstert nor ULTIMEA shows ads.

### Which is updated more often, Kstert or ULTIMEA?

Kstert ships an update every 3 weeks, and ULTIMEA every 5 weeks. Most recently, Kstert was updated on September 21, 2026 and ULTIMEA on September 22, 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.*