# SleepImage vs PuriFi Labs

The clearest difference is rating: PuriFi Labs at 5.0 against SleepImage's 3.1. SleepImage's advantage is update cadence (monthly vs every 4 months) and ratings volume (185 vs 5). 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.

PuriFi Labs holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: SleepImage has 185 ratings behind it against 5, so its average is the more settled of the two.

SleepImage ships an update monthly, PuriFi Labs every 4 months. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SleepImage | PuriFi Labs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (185 ratings)](https://appshunter.io/ios/app/sleepimage/id1504760736/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/purifi-labs/id1589484288/reviews)** |
| Number of ratings | **185** | 5 |
| Positive reviews | 30.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free | Free |
| Size | 27 MB | 48 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SleepImage](https://appshunter.io/developer/1504760405) | [Modularis, Inc.](https://appshunter.io/developer/1342363330) |

## 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


### PuriFi Labs

[App page](https://appshunter.io/ios/app/purifi-labs/id1589484288)

Monitor and manage your indoor air quality in real-time with this system. View sensor data, understand air quality at a glance with a color-coded scale, and control purification devices.

**Highlights:** Real-time indoor air quality monitoring, Color-coded air quality scale, View sensor particulate counts, Manage air purification devices, Track home or office air data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SleepImage free?

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

### Is PuriFi Labs free?

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

### Which has better reviews, SleepImage or PuriFi Labs?

PuriFi Labs is rated higher. SleepImage averages 3.1 out of 5 from 185 ratings, while PuriFi Labs averages 5.0 from 5 ratings.

### Do SleepImage or PuriFi Labs have ads?

Neither SleepImage nor PuriFi Labs shows ads.

### Which is updated more often, SleepImage or PuriFi Labs?

SleepImage ships an update monthly, and PuriFi Labs every 4 months. Most recently, SleepImage was updated on October 20, 2026 and PuriFi Labs on October 7, 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.*