# SleepImage vs Gains Performance Studio

The clearest difference is review sentiment: Gains Performance Studio at 100% against SleepImage's 30%. Gains Performance Studio also leads on device support (4 vs 2). On price, update cadence, ads 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.

SleepImage ships an update monthly, Gains Performance Studio every 6 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SleepImage | Gains Performance Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (186 ratings)](https://appshunter.io/ios/app/sleepimage/id1504760736/reviews)** | — |
| Number of ratings | **186** | — |
| Positive reviews | 30.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 27 MB | 169 MB |
| Requires iOS | 16.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [SleepImage](https://appshunter.io/developer/1504760405) | [Gains Performance Studio](https://appshunter.io/developer/1553307327) |

## What reviewers say

### SleepImage

[App page](https://appshunter.io/ios/app/sleepimage/id1504760736)

This app records, transfers, and analyzes sleep quality data when paired with specific devices. It offers a simple, intuitive experience for understanding sleep diagnostics and empowering better health decisions. It is designed for reliability and accuracy, turning complex sleep information into actionable insights.

**Highlights:** Record sleep quality data, Transfer sleep data, Analyze sleep quality, Pair with SleepImage devices, Intuitive user experience, Actionable sleep insights

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easiest apnea testing method
- 👍 Comfortable and least obstructive
- 👍 Simple to use
- 👍 Game changer sleep study
- 👍 Excellent device

**What reviewers complain about**

- 🐛 Error messages on patient ID entry
- 🐛 Device disconnects frequently
- 🐛 Uploads get stuck
- 🐛 Data not received by clinic
- 🐛 Confusing setup instructions

**Reported bugs**

- Error messages when entering patient ID
- Device disconnects
- Uploads get stuck
- Data not received by sleep clinic
- App doesn't work on newer iPhones/Android

**Requested features**

- Notification for Bluetooth disconnection
- Notification for recording stoppage
- App continues to collect and sync data when closed
- Option to bypass email sign-up
- Improved customer service


### Gains Performance Studio

[App page](https://appshunter.io/ios/app/gains-performance-studio/id1553307325)

Track workouts, meals, and body measurements with personalized guidance from your coach. Set goals, stay committed with progress tracking, and receive reminders for activities. Connect wearable devices for seamless data syncing.

**Highlights:** Workout and meal tracking, Progress monitoring, Goal setting, Nutrition management, Real-time coach messaging, Body measurement tracking, Wearable device integration

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SleepImage free?

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

### Is Gains Performance Studio free?

Gains Performance Studio is free to download, with no in-app purchases.

### Do SleepImage or Gains Performance Studio have ads?

Neither SleepImage nor Gains Performance Studio shows ads.

### Which is updated more often, SleepImage or Gains Performance Studio?

SleepImage ships an update monthly, and Gains Performance Studio every 6 weeks. Most recently, SleepImage was updated on October 29, 2026 and Gains Performance Studio 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.*