Sutro vs AirCycler 2.0
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sutro
Effortlessly manage your pool or spa water quality. This app works with a smart monitor to automatically track pH, free chlorine, alkalinity, and temperature, providing insights that make sense for optimal water conditions.
- Automatic water quality monitoring
- pH tracking
- Free chlorine measurement
- Alkalinity tracking
- Temperature monitoring
- Seamless app integration
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Sutro is the simple, safe, and seamless way to manage your Pool (or Spa) water with measurements that make sense and monitoring that is automatic. The Sutro app works with the Sutro Smart Monitor to measure your pool or spa’s pH, free chlorine (ppm), alkalinity, and temperature without you having to do anything.
AirCycler 2.0
Control and customize your home ventilation system remotely. Monitor indoor and outdoor air quality, adjust settings, and receive system alerts from anywhere. Optimize your home's air for comfort and health.
- Remote system control
- Customizable settings
- Indoor/outdoor air quality monitoring
- System alerts
- Ventilation equipment management
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Use the AirCycler app to customize and control your AirCycler home ventilation system. Gain access to custom settings based on indoor and outdoor air quality, monitor and control your home's connected ventilation equipment from anywhere, and set up system alerts when you want them.
Screenshots
Verdict
The clearest difference is review sentiment: Sutro at 73% against AirCycler 2.0's 0%. Sutro also leads on iOS requirement (12.4 vs 15.6). AirCycler 2.0's advantage is update cadence (fortnightly vs every 2 months). On price, ads, in-app purchases and monetization model 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.
Sutro ships an update every 2 months, AirCycler 2.0 fortnightly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.
| Parameter | Sutro | AirCycler 2.0 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (175 ratings) — better | — |
| Positive reviews | 72.9% of reviews — better | 0.0% of reviews |
| Number of ratings | 175 — better | — |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.4 — better | 15.6 |
| Further details — not scored | ||
| Size | 39 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Sutro Connect Inc | Ederico Rocha |
Customer experience
Sutro
AirCycler 2.0
Bugs and requests
Sutro
Reported bugs
4 issues- App crashes and freezes
- Disconnection issues with hub
- Calibration failures
- Inaccurate water chemistry readings
Requested features
4 requests- Measure total hardness and CYA
- Customizable notification settings
- Ability to cancel subscription easily
- Improved app stability and user experience
AirCycler 2.0
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sutro
No in-app purchases
AirCycler 2.0
No in-app purchases
