# УК Оста vs Spark Air

The clearest difference is rating: Spark Air at 3.7 against УК Оста's 1.0. Spark Air also leads on ratings volume (3 vs 1). УК Оста's advantage is in-app purchases (none vs 5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Spark Air sells 5 one-off in-app purchases. УК Оста asks for nothing beyond the download.

Spark Air holds the better App Store score, 3.7 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

УК Оста ships an update weekly, Spark Air every 8 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | УК Оста | Spark Air |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/id6777689660/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/spark-air/id6781246491/reviews)** |
| Number of ratings | 1 | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 8 days |
| Monetization | — | Free with in-app purchases |
| Size | 36 MB | 154 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Marat Valeev](https://appshunter.io/developer/1447500033) | [美活 劳](https://appshunter.io/developer/6780972476) |

## What reviewers say

### УК Оста

[App page](https://appshunter.io/ios/app/id6777689660)

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

**In-app purchases:** none


### Spark Air

[App page](https://appshunter.io/ios/app/spark-air/id6781246491)

Create, publish, and share audio productions. Connect with other creators through messaging and live audio sessions. Personalize your profile and engage with the community.

**Highlights:** Audio creation tools, Messaging between creators, Creator profiles and following, Live audio sessions, Profile personalization, Virtual gifts, Community moderation

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 990 Coins | $0.99 | one-time |
| 6,000 Coins | $5.99 | one-time |
| 11,025 Coins | $10.99 | one-time |
| 20,070 Coins | $19.99 | one-time |
| 60,300 Coins | $59.99 | one-time |


## Frequently asked questions

### Is УК Оста free?

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

### Is Spark Air free?

Spark Air is free to download, with in-app purchases available.

### Which has better reviews, УК Оста or Spark Air?

Spark Air is rated higher. УК Оста averages 1.0 out of 5 from 1 ratings, while Spark Air averages 3.7 from 3 ratings.

### Do УК Оста or Spark Air have ads?

Neither УК Оста nor Spark Air shows ads.

### Which is updated more often, УК Оста or Spark Air?

УК Оста ships an update weekly, and Spark Air every 8 days. Most recently, УК Оста was updated on November 5, 2026 and Spark Air on November 5, 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.*