# OpusTel vs Sleep Baby ©

The clearest difference is review sentiment: OpusTel at 80% against Sleep Baby ©'s 13%. OpusTel also leads on price (Free vs $0.99) and in-app purchases (none vs 2). Sleep Baby ©'s advantage is update cadence (every 4 months vs every 14 months) and device support (4 vs 1). On ads and iOS requirement there is nothing between them.

OpusTel is free to download; Sleep Baby © costs $0.99 up front. Sleep Baby © sells 2 in-app purchases, starting at $0.99 per month. OpusTel asks for nothing beyond the download.

OpusTel ships an update every 14 months, Sleep Baby © every 4 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | OpusTel | Sleep Baby © |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/opustel/id945641896/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **80.0% of reviews** | 12.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 98 MB | 53 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [OpusTel](https://appshunter.io/developer/945641895) | [Jewelsapps S. L.](https://appshunter.io/developer/953047521) |

## What reviewers say

### OpusTel

[App page](https://appshunter.io/ios/app/opustel/id945641896)

This app provides a real Swiss international telephone number for secure VoIP calls on iOS devices. It offers HD audio quality, free global calls between users, and call recording capabilities, all with a focus on user privacy.

**Highlights:** Real Swiss international telephone number, Secure VoIP calls, HD high-definition audio quality, Free global calls between users, Call recording, Conference calls, Automatic language selection

**In-app purchases:** none


### Sleep Baby ©

[App page](https://appshunter.io/ios/app/sleep-baby/id1317023893)

This app provides a variety of white noise sounds scientifically proven to help babies sleep, reduce stress, and cry less. It also allows users to record custom audio and offers playback in the background with special effects.

**Highlights:** White noise sounds for baby sleep, Record custom audio, Background playback, Shuffle mode, Video repetition, Special effects (snow, rain, confetti), AirPlay & Chromecast support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sleep Baby Full Version | $0.99 | per month |
| Sleep Baby Full version | $9.99 | per year |


## Frequently asked questions

### Is OpusTel free?

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

### Is Sleep Baby © free?

Sleep Baby © costs $0.99, and also offers in-app purchases.

### Do OpusTel or Sleep Baby © have ads?

Neither OpusTel nor Sleep Baby © shows ads.

### Which is updated more often, OpusTel or Sleep Baby ©?

OpusTel ships an update every 14 months, and Sleep Baby © every 4 months. Most recently, OpusTel was updated on November 1, 2026 and Sleep Baby © on November 2, 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.*