# Sonu vs Fullpower® Sleep

The clearest difference is rating: Fullpower® Sleep at 4.9 against Sonu's 4.4. Fullpower® Sleep also leads on review sentiment (100% vs 74%). Sonu's advantage is update cadence (every 3 weeks vs every 3 months) and ratings volume (227 vs 30). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Fullpower® Sleep holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: Sonu has 227 ratings behind it against 30, so its average is the more settled of the two. Written reviews point the same way: 74% of Sonu's written reviews are positive against 100% of Fullpower® Sleep's.

Sonu ships an update every 3 weeks, Fullpower® Sleep every 3 months. The most recent releases landed on September 14, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | Sonu | Fullpower® Sleep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (227 ratings)](https://appshunter.io/ios/app/sonu/id1597730467/reviews) | **[4.9 (30 ratings)](https://appshunter.io/ios/app/fullpower-sleep/id6479544236/reviews)** |
| Number of ratings | **227** | 30 |
| Positive reviews | 74.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 191 MB | 93 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sound Health Systems, Inc.](https://appshunter.io/developer/1500011226) | [Fullpower®](https://appshunter.io/developer/282995850) |

## What reviewers say

### Sonu

[App page](https://appshunter.io/ios/app/sonu/id1597730467)

This app offers personalized, drug-free acoustic resonance therapy for nasal congestion relief. It uses AI and facial scanning to tailor treatments, delivered via a separate wearable band. Track your progress and enjoy convenient, at-home therapy sessions.

**Highlights:** Personalized acoustic resonance therapy, Drug-free treatment, AI-enhanced facial scanning, Bluetooth connectivity, Treatment session tracking, Micro vibration options

**In-app purchases:** none

**What reviewers like**

- 👍 Product works well
- 👍 Drug-free congestion relief
- 👍 Effective for sinus issues
- 👍 Helps with breathing
- 👍 Revolutionary technology

**What reviewers complain about**

- 🐛 App has declined
- 🐛 New app confusing
- 🐛 Old features gone
- 🐛 Core functionality buried
- 🐛 Difficult to use (new app)

**Reported bugs**

- Infinite login loop
- App locks after session end
- Bluetooth connection issues
- Offline mode non-functional
- Cannot end session

**Requested features**

- Bring back old features
- Provide battery life indicator
- Add warning for high audio
- Restore alignment check
- Allow disconnection from band


### Fullpower® Sleep

[App page](https://appshunter.io/ios/app/fullpower-sleep/id6479544236)

This app requires specific hardware and an invitation from your provider for sleep monitoring. It facilitates account setup, guides hardware installation, and automatically sends sleep data to your provider. Users can view real-time device status and historical sleep data, with an option to share with Apple Health.

**Highlights:** Provider-issued invitation required, Guided hardware setup, Automatic sleep monitoring, Real-time device status, Historical sleep data viewing, Apple Health integration

**In-app purchases:** none


## Frequently asked questions

### Is Sonu free?

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

### Is Fullpower® Sleep free?

Fullpower® Sleep is free to download, with no in-app purchases.

### Which has better reviews, Sonu or Fullpower® Sleep?

Fullpower® Sleep is rated higher. Sonu averages 4.4 out of 5 from 227 ratings, while Fullpower® Sleep averages 4.9 from 30 ratings.

### Do Sonu or Fullpower® Sleep have ads?

Neither Sonu nor Fullpower® Sleep shows ads.

### Which is updated more often, Sonu or Fullpower® Sleep?

Sonu ships an update every 3 weeks, and Fullpower® Sleep every 3 months. Most recently, Sonu was updated on September 14, 2026 and Fullpower® Sleep on August 31, 2026.

---

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