Blueair vs Fellow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blueair
Monitor and control your indoor air quality in real-time. Gain insights and manage your environment effectively with intelligent features, whether you're at home or away. Experience healthier living through advanced air care.
- Real-time air quality tracking
- Seamless device controls
- Insight and control of air
- Intelligent adaptive features
- Remote management
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The Blueair app transforms how you care for your indoor environment with real-time air quality tracking and seamless device controls. With over 30 years of air care innovation and expertise, our products and app give you insight and control of your air to help you manage it effectively. Whether you are home or away, take effortless action with intelligent features that adapt to your space.
Fellow
Enhance your coffee brewing experience by connecting your smart coffee maker. Create custom brew profiles, schedule brews, and fine-tune every variable for perfect results. Access educational content to master your espresso craft.
- Create custom brew profiles
- Schedule brews in advance
- Fine-tune brewing variables
- Access guided educational content
- Improve espresso technique
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Connect your Fellow Aiden or Espresso Series 1 to unlock the full experience and stay up to date with the latest features. Aiden - Brew exceptional coffee with precision and ease. Create, edit, and share custom brew profiles Schedule brews in advance Fine-tune every variable for perfect results Combining precision, control, and speed, Aiden delivers pour-over quality coffee at the press of a button. Espresso Series 1 - Master your espresso craft. Access guided educational content Learn how to dial in your machine Improve your technique and consistency Profile syncing and Drops for Espresso Series 1 coming soon.
Screenshots
Verdict
The clearest difference is rating: Blueair at 4.8 against Fellow's 2.0. Blueair also leads on ratings volume (23K vs 55) and review sentiment (26% vs 10%). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Blueair holds the better App Store score, 4.8 against 2.0. That said, the two scores are not equally well evidenced: Blueair has 23K ratings behind it against 55, so its average is the more settled of the two. Written reviews point the same way: 26% of Blueair's written reviews are positive against 10% of Fellow's.
Blueair ships an update every 3 weeks, Fellow every 4 weeks. Both last shipped on September 24, 2026.
| Parameter | Blueair | Fellow |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (23K ratings) — better | 2.0 (55 ratings) |
| Positive reviews | 26.3% of reviews — better | 10.2% of reviews |
| Number of ratings | 23K — better | 55 |
| Update frequency | Every 3 weeks — better | Every 4 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 1.3 GB | 123 MB |
| Age rating | 4+ | 4+ |
| Developer | Blueair AB | Fellow |
Customer experience
Blueair
Fellow
User reviews
Blueair
From 23K App Store ratingsWhat we love
- 🚀 Great air purifier
- 🌟 Excellent product
- 👍 Quiet operation
- 🌳 Improves air quality
- 🔍 Informative app
Room to improve
- 🐛 Buggy app
- 🔌 Connectivity issues
- 🔍 Inaccurate sensor data
- 🕰️ Scheduling problems
- 🔒 Privacy concerns
Fellow
From 55 App Store ratingsWhat we love
- 👍 Seamless app pairing
- ✅ Firmware updates work well
- 🔍 Helpful profile management
Room to improve
- 🐛 Connectivity issues
- 🤔 Limited app functionality
- 😕 Usability concerns
- ⏱️ Frequent sign-outs
Bugs and requests
Blueair
Reported bugs
5 issues- App crashes on startup
- Frequent app disconnections
- Incorrect air quality readings
- Scheduling feature not working as expected
- Inability to change WiFi password
Requested features
6 requests- Add Google Home/Alexa integration
- Improve app stability and responsiveness
- Provide more customization options
- Allow data export and backup
- Fix daylight saving time issues
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- Enhance notification and alert features
Fellow
Reported bugs
3 issues- App unable to connect to WiFi
- Bluetooth pairing problems
- Inconsistent device visibility
Requested features
3 requests- Ability to brew by grams of coffee
- Scheduling and remote start features
- Custom recipe input and management
In-app purchases
Blueair
No in-app purchases
Fellow
No in-app purchases
