# Баю vs UDS App

The clearest difference is in-app purchases: UDS App at none against Баю's 6. UDS App also leads on ratings volume (6.9K vs 33) and update cadence (every 3 weeks vs every 3 months). Баю's advantage is review sentiment (94% vs 80%) and iOS requirement (13.0 vs 16.0). On price, rating, ads and monetization model there is nothing between them.

Both are free to download. Баю sells 6 in-app purchases, starting at $2.49 per month. UDS App asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Баю against 4.9 for UDS App. That said, the two scores are not equally well evidenced: UDS App has 6.9K ratings behind it against 33, so its average is the more settled of the two. Written reviews are what separate them: 94% of Баю's written reviews are positive against 80% of UDS App's.

Баю ships an update every 3 months, UDS App every 3 weeks. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Баю | UDS App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (33 ratings)](https://appshunter.io/ios/app/id533002403/reviews)** | [4.9 (6.9K ratings)](https://appshunter.io/ios/app/uds-app/id954809132/reviews) |
| Number of ratings | 33 | **6.9K** |
| Positive reviews | **94.1% of reviews** | 80.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 135 MB | 125 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Michael Feigenson](https://appshunter.io/developer/497912040) | [GLOBAL INTELLECT SERVICE CORP.](https://appshunter.io/developer/906692288) |

## What reviewers say

### Баю

[App page](https://appshunter.io/ios/app/id533002403)

This app offers a collection of soothing nature sounds and white noise to help babies and parents relax and sleep. It features a night mode that automatically plays sounds when a child cries and a sleep-tracking mode to monitor sleep patterns.

**Highlights:** Nature sounds and white noise, Record custom sounds, Automatic sound playback when baby cries, Sleep phase tracking, Sleep pattern visualization

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.49 | per month |
| Yearly Subscription | $19.99 | per year |
| Полная версия со скидкой | $1.99 | one-time |
| Удлиненное затухание звука | $2.99 | one-time |
| «Баю-Бай» - Полная Версия | $3.99 | one-time |
| Незаменимый Пакет Сна | $4.99 | one-time |


### UDS App

[App page](https://appshunter.io/ios/app/uds-app/id954809132)

Discover great deals, earn bonus points, and get cashback with this app. Earn points from your purchases and even from your friends' purchases. Share awesome places with your friends and find more goodies within the app.

**Highlights:** Find local deals, Earn points from purchases, Earn points from friends' purchases, Recommend places to friends, Cashback offers, Global usability

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent customer service
- 👍 Great selection and variety
- 👍 Friendly and attentive staff
- 👍 Convenient and easy to use
- 👍 Reliable and consistent quality

**What reviewers complain about**

- 🐛 Bonus points disappearing
- 🐛 Login and password issues

**Reported bugs**

- Bonus points disappearing
- Login and password issues

**Requested features**

- Ability to view bonus points balance
- Improved app stability and reliability


## Frequently asked questions

### Is Баю free?

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

### Is UDS App free?

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

### Which has better reviews, Баю or UDS App?

Баю is rated higher. Баю averages 5.0 out of 5 from 33 ratings, while UDS App averages 4.9 from 6.9K ratings.

### Do Баю or UDS App have ads?

Neither Баю nor UDS App shows ads.

### Which is updated more often, Баю or UDS App?

Баю ships an update every 3 months, and UDS App every 3 weeks. Most recently, Баю was updated on October 8, 2026 and UDS App on October 24, 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.*