# Sutro — Love your Pool (or Spa) again. > Automatic pool and spa water quality monitoring and management. (iPhone/iPad app by Sutro Connect Inc.) - Source: https://appshunter.io/ios/app/sutro/id1439627399 (this page in markdown: same URL + `.md`) - Developer: [Sutro Connect Inc](https://appshunter.io/developer/1439627398) - Category: Lifestyle, Utilities - Price: Free - Rating: 3.85/5 from 175 App Store ratings · 107 written reviews indexed - Age rating: 4+ - Requires: iOS 12.4 · 39 MB - Languages: English - Released: 2020-02-06 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/sutro/id1439627399/reviews.md ## What is Sutro? 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. ## Key features - Automatic water quality monitoring - pH tracking - Free chlorine measurement - Alkalinity tracking - Temperature monitoring - Seamless app integration ## What do users think of Sutro? Overall sentiment: neutral **Pros** - 🚀 Easy to use - 👍 Accurate water testing - 💡 Helpful notifications and recommendations - 🔒 Reliable customer support - 🚀 Convenient pool monitoring - 👍 Improved pool water quality **Cons** - 🐛 Connectivity issues - 🐛 Inaccurate readings - 🐛 Buggy app performance - 🔋 Expensive subscription - 🐛 Setup difficulties **Commonly reported bugs** - App crashes and freezes - Disconnection issues with hub - Calibration failures - Inaccurate water chemistry readings **Most requested features** - Measure total hardness and CYA - Customizable notification settings - Ability to cancel subscription easily - Improved app stability and user experience ## Recent user reviews (10 of 107) All indexed reviews: https://appshunter.io/ios/app/sutro/id1439627399/reviews.md ### 4/5 — Love My Sutro Devices *2025-06-29, version 1.87* I purchased a Sutro for the pool in May 23’ and couldn’t be more grateful that I did. There was some difficulty getting it up and running but I’ve since purchased a second one for the spa in August of 24’ and that was up and running in 15 minutes—hardware upgrades and user familiarity making the difference. The countless trips and hours to the pool store for water testing are over as Sutro helps keep my water crystal clear with three reading a day. Love being able to check the app anytime to see what’s happening. To me, the $29 monthly cartridge and monitoring fee in addition to the $350 device cost, are well worth the saved trips to my local pool store. Sutro Customer Service (shoutout Dave!) has been great—always providing step by step instructions that solved any questions that I had. ### 5/5 — Returning customer *2025-03-24, version 1.85* Has Sutro in my old pool, moved and built a new pool. Lost the hub but just got a new one and back with it. Customer support was great and understanding. Got my new hub and a brand new set of batteries. ### 5/5 — Amazing Customer Service *2025-03-19, version 1.85* I’ve be using Sutro now for 2 years and love it. If I have ever had any issues they have been super helpful fixing it. I wish all customer services were as good as Sutro. The app is very easy to use and has made my pool experience simple. ### 5/5 — Awesome! *2025-03-04, version 1.85* Great app! They are constantly improving and adding new features! Makes it easy to manage my pool hassle free. ### 5/5 — Great app and robot *2025-02-12, version 1.85* Love my Sutro so far and the app works perfect with it. So much less stress by the hot tub!! ### 1/5 — App worries me *2025-01-22, version 1.84* This is an expensive item to not have the app work. The save button on the manually added chemicals page doesn’t work. I can’t even use this without it. I’m going to have to return it if the app doesn’t work. ### 5/5 — Exceptional Customer Care and Great Product *2025-01-10, version 1.84* I recently purchased the Sutro monitor for my spa and began the setup today. Not being particularly tech savvy, I was experiencing difficulty in getting the app and phone settings, etc. correct to complete the process. I emailed customer care, asking a few questions and Jenna was quick to offer phone support. She called me promptly and was very helpful, kind and polite. Her directions were clear and easy to follow. She continued following me through the process until connectivity was obtained. What a relief! In addition, I asked Jenna a question regarding service that required a further answer from another team member. Within minutes I received a call from Jawad to address my question. Not only did he address that question, but during the course of that conversation he noticed my monitor was not sending a signal to the hub. With the same care as Jenna, he walked me through getting it quickly restored. Within a short time, my app was sending me test results in real time. I am impressed with a company that you can actually have a conversation and they care about helping you. Rare today! I am impressed with the app and monitor. Really cool system. ### 5/5 — Aj *2024-12-31, version 1.84* I love the Sutro app it’s very user friendly. ### 5/5 — Huge win for Hot Tub! *2024-12-13, version 1.84* We purchased our hot tub almost four years ago & I spent several months trying to get the chemistry right on my own, then trying another brand of monitoring (which had a lot of issues & bad customer support). I read about Sutro and its high quality device and gave it a try. I’m sure glad I did! The device is great, easy to change cartridges and extremely accurate (I continue to test manually every couple of months with my Taylor lab kit, just to be sure of my readings). Their customer support is fantastic- highly responsive and very helpful. I highly recommend this! ### 5/5 — Great Way To Keep Your Pool In Tip Top Shape *2024-12-12, version 1.84* Sutro has been my go-to for monitoring my pool water chemistry since the beginning. I’ve invested in their monitor and Pool device, and it’s been an excellent decision. I can confidently check my chemical levels three times a day, knowing that I’m getting accurate readings. Sutro’s device has been reliable and consistent, allowing me to stay on top of my pool’s chemistry without any worries. It’s been a huge relief, and I highly recommend their products. The company itself is great, and the customer support is top-notch. ## Frequently asked questions about Sutro ### What does the Sutro app do? The Sutro app works with the Sutro Smart Monitor to automatically measure and track key water parameters for your pool or spa. It monitors pH, free chlorine (ppm), alkalinity, and temperature, providing you with easy-to-understand data to manage your water quality. ### What are the key features of Sutro? Key features include automatic monitoring of pH, free chlorine, alkalinity, and temperature. The app provides measurements that make sense and seamless integration with the Sutro Smart Monitor for effortless management of your pool or spa water. ### Is Sutro free to use? Based on the provided information, the Sutro app is free to use. There are no mentions of subscription fees or in-app purchases for the core functionality of the app. ### What devices is Sutro compatible with? The Sutro app is designed to work with the Sutro Smart Monitor. While specific device compatibility for the app itself (e.g., iOS or Android versions) is not detailed, it requires the companion hardware to function. ### How does Sutro help manage my pool or spa? Sutro simplifies pool and spa management by automating water quality testing. By providing real-time data on pH, chlorine, alkalinity, and temperature, it helps you understand your water's condition and take necessary actions to keep it clean and safe. ## Version history (last 5 releases) ### 1.91 — 2025-11-05 What’s New: Removed support for device integrations. Updated address support — now limited to Canada only. ### 1.90 — 2025-10-01 What’s new: 
Maintenance and re-structuring ### 1.89 — 2025-09-30 What’s New Getting started is now easier with a revamped device onboarding flow and helpful GIFs Calibration cards have a fresh new look Smarter error handling makes calibration smoother and less stressful You can now move your device seamlessly between pools ### 1.88 — 2025-07-29 A cleaner experience from the moment you open the app, quicker access to your pool’s data, fewer taps, and more reliability where it matters. What’s New Reduced app loading times, enjoy quicker access to your pool’s crucial data and a faster, more seamless experience from setup to daily use Pull down to refresh your Home Dashboard More reliable calibration, even with low battery Removed the ‘manual trigger for Service Mode’ feature Bug fixes, UI tweaks, and better overall stability. ### 1.87 — 2025-06-02 A smoother experience from setup to support — plus continued improvements to service mode, onboarding, and QR scanning. What’s New Onboarding now requires home and pool setup Confirmation added before starting Manual Service Mode Fixed layout bugs with large fonts Resolved issue with “Delete My Account” flow General stability improvements Recent Highlights Improved QR scanning with zoom and tap-to-focus Manual trigger for Service Mode Attach media to Help Tickets Delete pools from Home Settings ## Apps similar to Sutro | App | Rating | Price | Category | | --- | --- | --- | --- | | [iopool](https://appshunter.io/ios/app/iopool/id1449698927) | 4.3 (90) | Free | Lifestyle | | [Flume Water](https://appshunter.io/ios/app/flume-water/id1117135447) | 4.7 (1,420) | Free | Lifestyle | | [WaterGuru](https://appshunter.io/ios/app/waterguru/id1372295527) | 4.1 (229) | Free | Lifestyle | | [SmartTub®](https://appshunter.io/ios/app/smarttub/id1318260634) | 3.6 (313) | Free | Lifestyle | | [Aiper](https://appshunter.io/ios/app/aiper/id6474955418) | 4.2 (178) | Free | Lifestyle | | [OmniLogic](https://appshunter.io/ios/app/omnilogic/id796282158) | 4.6 (7,541) | Free | Lifestyle | ## More apps by Sutro Connect Inc - [Sutro-Pro](https://appshunter.io/ios/app/sutro-pro/id1552389685) - [Ecolab Sync](https://appshunter.io/ios/app/ecolab-sync/id6673897223) All apps by Sutro Connect Inc: https://appshunter.io/developer/1439627398 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*