# Inogen Connect Portable Oxygen vs SleepCircle

The clearest difference is review sentiment: SleepCircle at 54% against Inogen Connect Portable Oxygen's 6%. SleepCircle also leads on rating (4.7 vs 4.3) and ratings volume (14K vs 714). 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.

SleepCircle holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: SleepCircle has 14K ratings behind it against 714, so its average is the more settled of the two. Written reviews point the same way: 6% of Inogen Connect Portable Oxygen's written reviews are positive against 54% of SleepCircle's.

Inogen Connect Portable Oxygen ships an update every 3 months, SleepCircle every 6 weeks. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Inogen Connect Portable Oxygen | SleepCircle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (714 ratings)](https://appshunter.io/ios/app/inogen-connect-portable-oxygen/id1360248558/reviews) | **[4.7 (14K ratings)](https://appshunter.io/ios/app/sleepcircle/id6737507523/reviews)** |
| Number of ratings | 714 | **14K** |
| Positive reviews | 6.4% of reviews | **53.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Best chart rank | — | **#209** |
| Size | 91 MB | 27 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Inogen, Inc.](https://appshunter.io/developer/1360248557) | [Lincare Holdings Inc.](https://appshunter.io/developer/1198457390) |

## What reviewers say

### Inogen Connect Portable Oxygen

[App page](https://appshunter.io/ios/app/inogen-connect-portable-oxygen/id1360248558)

Monitor your portable oxygen concentrator's battery life, settings, and receive important updates. Access helpful videos and troubleshooting information 24/7, all from your mobile device.

**Highlights:** Real-time stats, Battery life monitoring, Current settings display, Maintenance alerts, Troubleshooting guides, Helpful videos

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Basic functionality
- 🚀 Connects quickly when it works

**What reviewers complain about**

- 🐛 Frequent connection issues
- 🔋 Drains phone battery
- 🤯 Requires re-registration after each use
- 🤔 Limited functionality compared to previous version
- 🤷‍♀️ Useless without Bluetooth connection

**Reported bugs**

- Fails to detect or connect to oxygen concentrator
- Crashes or freezes on startup
- Incompatible with latest iOS versions
- Loses connection randomly during use

**Requested features**

- Remote control of oxygen concentrator
- Ability to change oxygen flow rate
- More detailed device diagnostics
- Improved battery life reporting


### SleepCircle

[App page](https://appshunter.io/ios/app/sleepcircle/id6737507523)

**Currently charting:** #209 Top Free · Medical (US App Store)

Access sleep therapy articles, track device usage, and manage your PAP supplies. Request support, receive updates, and easily reorder necessary items for convenient home delivery.

**Highlights:** Sleep therapy articles, Device usage tracking, Update personal information, Request support, Order PAP supplies, Check eligibility criteria

**In-app purchases:** none

**What reviewers like**

- 👍 Convenient ordering
- 💡 Helpful order tracking

**What reviewers complain about**

- 🐛 Sleep data not showing
- 🐛 Buggy app performance
- 🐛 Connectivity issues
- 🐛 Lack of customer support

**Reported bugs**

- Unable to register or login
- App crashes or freezes
- Sleep data not syncing
- Ordering issues with insurance

**Requested features**

- Integration with CPAP machines
- Improved sleep data tracking
- Better app stability and reliability


## Frequently asked questions

### Is Inogen Connect Portable Oxygen free?

Inogen Connect Portable Oxygen is free to download, with no in-app purchases.

### Is SleepCircle free?

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

### Which has better reviews, Inogen Connect Portable Oxygen or SleepCircle?

SleepCircle is rated higher. Inogen Connect Portable Oxygen averages 4.3 out of 5 from 714 ratings, while SleepCircle averages 4.7 from 14K ratings.

### Do Inogen Connect Portable Oxygen or SleepCircle have ads?

Neither Inogen Connect Portable Oxygen nor SleepCircle shows ads.

### Which is updated more often, Inogen Connect Portable Oxygen or SleepCircle?

Inogen Connect Portable Oxygen ships an update every 3 months, and SleepCircle every 6 weeks. Most recently, Inogen Connect Portable Oxygen was updated on November 6, 2026 and SleepCircle on November 9, 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.*