iopool vs Sutro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iopool
This app helps pool owners manage their water treatment with continuous analysis from a smart probe. It provides step-by-step guidance for product additions and intelligent recommendations for maintenance, eliminating the need for manual inventory checks.
- Continuous water analysis
- Automated product addition notifications
- Step-by-step treatment guidance
- Intelligent maintenance recommendations
- Product inventory and quantity management
- Pool health monitoring
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The iopool application allows pool owners to manage their water treatment themselves. The EcO probe analyzes the water continuously and the application displays the results of the analyses. When an addition of products is necessary, the user is notified. The application explains step by step the steps to follow for optimal efficiency and safety. Thanks to iopool's intelligent recommendation engine and its application, users no longer need to worry about managing inventory and quantity of maintenance products. These products have been selected by iopool for their efficiency, in partnership with a university research center. The iopool application is the best companion for users of a private pool. The application makes it possible to know at any time the state of health of the pool, forgetting the chore of weekly strips.
Sutro
This app connects multiple pool and spa monitoring devices to a single interface. It allows users to manage and view the status of all their connected Sutro devices from one convenient location.
- Connect multiple Sutro devices
- Centralized device management
- View device status
- Route management for devices
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The SutroPro app connects all Sutros in your route into one.
Screenshots
Verdict
The clearest difference is review sentiment: iopool at 60% against Sutro's 0%. iopool also leads on rating (4.3 vs 3.2) and update cadence (every 2 weeks vs every 8 months). Sutro's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, in-app purchases and device support 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.
iopool holds the better App Store score, 4.3 against 3.2. That said, the two scores are not equally well evidenced: iopool has 94 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 60% of iopool's written reviews are positive against 0% of Sutro's.
iopool ships an update every 2 weeks, Sutro every 8 months. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.
| Parameter | iopool | Sutro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (94 ratings) — better | 3.2 (11 ratings) |
| Positive reviews | 60.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 94 — better | 11 |
| Update frequency | Every 2 weeks — better | Every 8 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 12.0 — better |
| Further details — not scored | ||
| Size | 78 MB | 65 MB |
| Age rating | 4+ | 4+ |
| Developer | Iopool | Sutro Connect Inc |
Customer experience
iopool
Sutro
In-app purchases
iopool
No in-app purchases
Sutro
No in-app purchases
