# Embr Wave 2 vs Ozlo Sleepbuds

The clearest difference is ads: Ozlo Sleepbuds at none against Embr Wave 2's shown. Ozlo Sleepbuds also leads on update cadence (weekly vs every 2 months) and monetization model (free vs free with in-app purchases). Embr Wave 2's advantage is review sentiment (72% vs 44%) and iOS requirement (15.5 vs 18.0). On price, rating, ratings volume 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.

On the App Store both sit at effectively the same score — 4.8 for Embr Wave 2 against 4.7 for Ozlo Sleepbuds. Both are backed by a comparable volume of ratings — 4K and 2.8K respectively. Written reviews are what separate them: 72% of Embr Wave 2's written reviews are positive against 44% of Ozlo Sleepbuds's.

Embr Wave 2 ships an update every 2 months, Ozlo Sleepbuds weekly. Both last shipped on November 7, 2026.

## The numbers

| Metric | Embr Wave 2 | Ozlo Sleepbuds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4K ratings)](https://appshunter.io/ios/app/embr-wave-2/id1563878390/reviews)** | [4.7 (2.8K ratings)](https://appshunter.io/ios/app/ozlo-sleepbuds/id6447005546/reviews) |
| Number of ratings | **4K** | 2.8K |
| Positive reviews | **72.4% of reviews** | 44.4% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 50 MB | 275 MB |
| Requires iOS | **15.5** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Embr Labs Inc.](https://appshunter.io/developer/1205495904) | [Drowsy Digital Inc.](https://appshunter.io/developer/1679994355) |

## What reviewers say

### Embr Wave 2

[App page](https://appshunter.io/ios/app/embr-wave-2/id1563878390)

Control a wearable thermal device to manage temperature discomfort, stress, and improve sleep. Explore custom sessions, personalize settings, and track usage for better well-being.

**Highlights:** Explore thermal sessions for sleep, relaxation, and focus, Personalize device button programming, Customize temperature and session duration, Schedule automatic cooling and warming sessions, Track device usage and learn about your body, Receive app and firmware updates

**In-app purchases:** none

**What reviewers like**

- 🚀 Effective at cooling/warming
- 👍 Helps with hot flashes, night sweats, and sleep issues
- 👍 Easy to use and navigate
- 👍 Versatile for various use cases (Raynaud's, anxiety, etc.)
- 👍 Positive impact on quality of life

**What reviewers complain about**

- 🐛 Connectivity issues with app
- 🐛 Firmware/software compatibility problems
- 🔋 Battery life concerns
- 💡 Desire for more advanced features (Apple Watch integration, automatic mode, etc.)

**Reported bugs**

- Connectivity issues between device and app
- Firmware/software compatibility problems with newer devices
- Battery life draining faster than expected

**Requested features**

- Apple Watch integration
- Automatic mode/detection of hot flashes
- More customization options
- Improved app functionality and stability


### Ozlo Sleepbuds

[App page](https://appshunter.io/ios/app/ozlo-sleepbuds/id6447005546)

Tiny, comfortable earbuds designed for sleep. They offer all-night battery, noise blocking, and audio streaming. The companion app personalizes settings and provides sleep data reports.

**Highlights:** Ultra-comfy, low-profile design, All-night battery life (up to 14 hours), Noise blocking for disruptive sounds, Bluetooth audio streaming, Personal in-ear alarm, Sleep modes and timer, Sleep pattern and environmental insights

**Features:** iPhone Duo support

**In-app purchases:** none

**What reviewers like**

- 💤 Comfortable for side sleeping
- 🌙 Helps with sleep and tinnitus
- 🔕 Blocks out noise like snoring
- 🕰️ Alarm wakes user without disturbing partner
- 🔊 Good sound quality and variety of sleep sounds

**What reviewers complain about**

- 🔌 Battery life issues, drains quickly
- 📶 Bluetooth connectivity problems, frequent disconnections
- 🤖 Glitchy app with stability and UX problems
- 🔊 Limited volume control and sound options
- ⚠️ Mandatory updates cause disruptions

**Reported bugs**

- Earbuds not charging properly in case
- Sync issues between left and right earbuds
- App fails to connect or update firmware
- Sleep timer function is not working as expected

**Requested features**

- Allow custom sleep sounds and playlists
- Add phone-free mode to use without app
- Improve alarm features to work with phone alarms
- Expand sound library with more options like nature sounds


## Frequently asked questions

### Is Embr Wave 2 free?

Embr Wave 2 is free to download, with no in-app purchases.

### Is Ozlo Sleepbuds free?

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

### Which has better reviews, Embr Wave 2 or Ozlo Sleepbuds?

Embr Wave 2 is rated higher. Embr Wave 2 averages 4.8 out of 5 from 4K ratings, while Ozlo Sleepbuds averages 4.7 from 2.8K ratings.

### Do Embr Wave 2 or Ozlo Sleepbuds have ads?

Embr Wave 2 shows ads; Ozlo Sleepbuds does not.

### Which is updated more often, Embr Wave 2 or Ozlo Sleepbuds?

Embr Wave 2 ships an update every 2 months, and Ozlo Sleepbuds weekly. Most recently, Embr Wave 2 was updated on November 7, 2026 and Ozlo Sleepbuds on November 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*