# WaterGuru — user reviews > 164 indexed App Store user reviews of WaterGuru by WaterGuru, Inc, rated 4.10/5 from 235 ratings. - Source: https://appshunter.io/ios/app/waterguru/id1372295527/reviews - App overview in markdown: https://appshunter.io/ios/app/waterguru/id1372295527.md - Rating breakdown: 5★ 152 · 4★ 21 · 3★ 23 · 2★ 10 · 1★ 29 ## What do users think of WaterGuru? Overall sentiment: positive **Pros** - 💰 Money saver - 🔍 Accurate readings - 🕰️ Convenient daily monitoring - 👨‍💻 Excellent customer service - 🔧 Easy to use - 🤖 Automated pool care **Cons** - 🐛 Connectivity issues - 🔋 Battery drain - 🤖 Inaccurate readings for some parameters - 💸 Expensive cartridges - 🤷‍♂️ Unreliable device **Commonly reported bugs** - App notifications not working properly - Inability to upload pool photos - Inconsistent app performance after updates **Most requested features** - Ability to set custom testing schedule - Measure salt levels - Provide more advice on adjusting water chemistry - Add hourly temperature readings ## Newest reviews (14 of 164) ### 2/5 — tries too cheat you *2025-10-19, version 6.4.6* red alert change cartridge now when days left, total scam ### 5/5 — Great Customer Service *2025-08-19, version 6.4.6* The app works great no issues at all. The product does works well however even if you run into issues the customer support team will respond quickly and resolve the issue! Overall I recommend this product and have been using it for 1.5 years. ### 5/5 — Outstanding support *2025-07-22, version 6.4.6* The WaterGuru S2 system is very helpful and it brought peace to my mind regarding all important chemicals measurements. The customer support as well is very friendly and answer very quickly all the questions. I highly recommend WaterGuru with confidence. ### 4/5 — WaterGuru To The Rescue *2025-07-09, version 6.4.6* The WaterGuru testing is extremely accurate. I compared to my Taylor Test Kit and the results were so close. We also had a problem with our WG but after talking to support they sent a new one. They stand by their product and that means a lot. They do need more helpful advice on the chemistry changes but this device has saved me so much time. Thank you WATERGURU! ### 5/5 — Great Customer Support *2025-07-08, version 6.4.6* I had some trouble getting the app to work, and it turned out to be a quirky battery-related issue. The WG team quickly diagnosed the problem and got everything running smoothly again. What really stood out was their follow-up even after things were fixed—huge shoutout to Shan for the great support! ### 5/5 — Responsive Customer Service *2025-07-04, version 6.4.6* This product works well to replace old fashioned testing strips. You get a very specific reading every morning on your phone. If there are any issues the customer service is fantastic and responsive. No monthly fees but every 6 weeks you have to replace the measuring cassettes, they sell in pack of 3 for $69 so not too bad. ### 5/5 — Spectacular service! *2025-06-23, version 6.4.6* I have had a Water Guru for my pool for about 4 years. I upgraded to the Sense 2 for my pool and I purchased one for my spa. These units have saved me so much time! I tell everyone I know who has a pool that they NEED this product! This season my spa Water Guru was giving me the battery low message after I had recently changed them. I called the service number and they trouble shot the unit and ran remote diagnostics and determined a failure then sent me a new one with batteries to replace the failed one. I was very happy that Water Guru stands behind their product! Big Thanks!!!!! ### 5/5 — Great customer service *2025-06-19, version 6.4.6* Shan from customer service helped me out today and was so professional and courteous. It was a very pleasant experience and the issue was resolved. ### 5/5 — Excellent Service *2025-06-18, version 6.4.6* I just completed my latest interaction with customer service and as in previous cases, it was excellent! My representative Shan was very helpful and quickly resolved my problem. Great experience! ### 5/5 — After rough start now very satisfied *2025-06-18* I purchased a Sense 2 in September 2024 to allow daily updates to the most important water parameters Cl and pH. I monitored the first few weeks of results from the unit with my own drop chemical tests to get an idea of the accuracy. Even though the results would be slightly off the drop test results (~ 0.1 on pH and ~ 0.5 ppm FC) they were consistent and repeatable which satisfied my intended usage of monitoring trends in between more accurate drop tests. I must add that absolute accuracy was better than I expected having read some online reviews. My main concern was repeatability which was good with the unit. What I was not as happy with was the battery life. A fresh set of C cell batteries would last only about 4-5 days. I contacted support with my concern and they said my unit was defective because batteries should last up to 5-6 months and they sent me a new unit. The new unit has been in the skimmer for almost 3 months now and the off-brand batteries that came with the unit are still at 93%! So the battery usage issue is definitely hugely improved and I can now believe the 6 months claim with a quality battery set. Overall very happy with it now and can recommend! **Developer response:** Thank you so much for taking the time to leave such a thoughtful and detailed review. We’re really glad to hear that your Sense 2 has been performing well and that you're happy with the accuracy and consistency of the readings—it’s exactly what we aim for! We also appreciate your comments about the battery life. We're glad the replacement unit resolved the issue and that you're now seeing the kind of performance we expect from the device. If you ever need anything or have more questions down the road, please don’t hesitate to reach out. We're always here to help. ### 3/5 — When will it measure salt *2025-06-16, version 6.4.6* For salt water pools, it would be great to measure the salt levels! When is that going to b added? Also, you alert to saturation index but do not give any advice on how to adjust it! This would be very helpful! ### 5/5 — Great Support! *2025-06-16, version 6.4.6* After 2 successful seasons using this fantastic device, I was having difficulty connecting for the season start. Joan and WaterGuru’s customer support was immediate and resolved the issue by replacing it. Blown away with their support!! ### 5/5 — Money saver! *2025-06-12, version 6.4.6* I used to pay a pool service $350-$550 per month to come out once a week and vacuum my pool and balance my chemicals. Never again! My Sense keeps me in the know so that my pool is safe EVERYDAY. Kind folks like Shan are available if I ever need support. She has helped me in record time with stellar service. ### 5/5 — Customer service is outstanding! *2025-06-12, version 6.4.6* We had purchased a unit 1.5 years ago and plastic clips broke off. I contacted WaterGuru to see if I could purchase a part. To my delight and huge surprise they offered to replace the unit without even having to ask. Incredible! Thank you. We are a HOA and have to monitor the water constantly and we are extremely happy with the sensors. Highly recommended!!! ## Most critical reviews (10 lowest-rated) ### 1/5 — New OS *2026-04-04, version 7.0.1* Doesn’t support 26.2.1 ### 1/5 — Great concept but horrific device reliability *2025-12-30, version 6.4.6* Very high failure rate and unreliability of both s1 and s2 Update 12/25 - had two more devices become intermittent. They dry out a few weeks, Work then either drain batteries or totally stop functioning. Waste of money on units and cartridges ### 1/5 — Want to love the product. Unfortunately it does not deliver on its promise. *2025-10-13, version 6.4.6* The idea of automated pool testing is fantastic. Such a time saver…if it worked. Had the original unit with 2 test cartridges. It worked relatively well until unit gave out. Made the rash decision to purchase the second gen model for the c5 cartridges. 5 tests in one seemed like a game changer. Problem is only chlorine and ph are accurate. The other 3 are nowhere near accurate nor precise. It seems like the app and the unit just randomly guess at calcium, alkalinity and cyanuric acid levels. The company still sells and advertises for accurate c5 cartridges, yet publicly told me the 3 don’t work well. They are working on a new design and were supposed to launch in July. It’s mid October and no update. Save the hassle and look elsewhere. ### 1/5 — Piece of Garbage *2025-09-30, version 6.4.6* I love the idea of this device, however, it doesn’t work most of the time. Every time it fails to work it uses up expensive supplies. There is no customer support phone number and the “help” option on the app is no help. ### 1/5 — 20% of the time, it works all the time *2025-06-29, version 6.4.6* Thanks to this latest update, I am no spending more time troubleshooting, removing batteries, resetting, rebooting and looking at messages telling me I’m out of BT range from 2ft away and the usual “something went wrong” than getting reading from the Sense 2 Two years of mostly flawless functioning down the drain in one “update” ### 1/5 — Longstanding issues never fixed *2025-06-22, version 6.4.6* the issue remains where the app doesn’t notify you if the unit stops reporting. I don’t check the app every day as I’m quite busy and so can forget if there’s no notifications, meanwhile the pool water chemistry gets very unbalanced. App needs to notify if unit fails to check in. They sent a special technician to email me to change my review. But until they fix the actual problem the review remains valid. ### 1/5 — Unreliable *2024-12-06, version 6.4.1* Loses connection constantly and even when it does manage to check in and measure the readings are wildly inaccurate compared to a professional kit. ### 1/5 — Crippling issue unfixed for a year *2024-06-20* Don’t tell me to email you. You’ve ignored my emails about this. I first reported this issue a year ago. You still haven’t changed anything or fixed it. Please take serious notice of what I’m telling you or I will need to cancel my account. When the unit fails or stops taking measurements, the app also stops notifying the user. I do not organise my life around remembering to check WaterGuru every day, I rely on notifications to remind me. Therefore, if the cassette runs out or there is some problem with the batteries, and the app constantly never notifies me, it can take a week before I realise that there’s a problem. During this time, because your product hasn’t notified me, the chlorine has dropped, the pH is out of balance, the cassette is empty, et cetera , please urgently address this bug and make sure the app send a notification EVERY day without fail, telling the user there is a problem. No notification means no problem in most peoples minds, when actually there is a severe problem and the app just isn’t communicating at all well with the user. Seems beyond obvious but for some reason it’s not a feature. **Developer response:** We apologize for the inconvenience this has caused you. To address this issue more effectively, could you please call our customer service team at 1-844-989-GURU (4878)? We are committed to resolving this and improving your experience. ### 1/5 — Once again…let me set things my way *2023-08-31* I refuse to buy anything from this shady company. They force daily testing (not necessary at all) so they can force you to buy their ridiculously expensive cartridges. Let me set it to every 3 days at the very least. When it thinks your ph is too high it auto puts their overpriced chemicals in the cart. That needs to stop Don’t buy this if you’re thinking about it. It works, sure. But the company isn’t good Imo. Still can’t set my own testing schedule. Crap company. March 21, 2023. Still can’t set my own testing schedule. Still a useless app and product Adding to this. Because these twits test every day they use batteries like crazy. I’m tired of this. Don’t buy this product Did I ask for chatgpt?? Get this crap off my phone. **Developer response:** Hi. I'm sorry to hear about your experience with the company and our product. Your feedback is important to us, and we appreciate you sharing your concerns. We value your input and will take it into consideration for future improvements. If you have any further issues or questions, please don't hesitate to reach out to us. Your satisfaction is our priority. ### 1/5 — Once again…let me set things my way *2023-06-21* I refuse to buy anything from this shady company. They force daily testing (not necessary at all) so they can force you to buy their ridiculously expensive cartridges. Let me set it to every 3 days at the very least. When it thinks your ph is too high it auto puts their overpriced chemicals in the cart. That needs to stop Don’t buy this if you’re thinking about it. It works, sure. But the company isn’t good Imo. Still can’t set my own testing schedule. Crap company. March 21, 2023. Still can’t set my own testing schedule. Still a useless app and product Adding to this. Because these twits test every day they use batteries like crazy. I’m tired of this. Don’t buy this product **Developer response:** Hi! We appreciate you taking the time to share your feedback. We deeply regret that our product has not met your expectations. We also apologize for the difficulties you faced when using the product. Please allow us to assist you. You may reach out to support@waterguru.com (mailto:support@waterguru.com) or call us at: 1-844-989-4878(GURU). We are fully committed to rectifying the situation and ensuring that you receive the high-quality customer service and reliable product experience you deserve. ## Most praised reviews (10 highest-rated) ### 5/5 — Customer service *2026-04-03, version 7.0.1* Jean Pi was so helpful to resolve my issues with my sense 2. After sending him a video to demonstrate that the sense2 was unresponsive, he sent me a new one for free. ### 5/5 — Best pool gadget ever *2026-03-18* I have been using WaterGuru now for several years, first the sense 1 and then the sense 2, and I honestly have to say that it is the best thing that happened to pool care ever. Before, I always had trouble keeping up with all the testing and adding the right amount of chemicals to the water , and sooner or later my pool would turn green every single year. Since I started using WaterGuru, I never had that problem again and in the end it saves me money on chemicals and upkeep. I also want to mention their customer service here, which is really second to none. They are extremely fast to respond, very helpful and always come up with a solution , should there be a problem or issue. Great product, great support, what mare can you ask for. **Developer response:** Thank you so much for the amazing review and for being a longtime WaterGuru user! We’re thrilled to hear it’s made such a difference in your pool care and helped keep everything balanced while saving you time and money. We truly appreciate your kind words about our support team as well. If you ever need anything, do not hesitate to let us know. We'll be more than happy to help. ### 5/5 — Handy product, great support! *2026-03-12* I have had my water guru for about 2 years and love the daily updates! I get a push notification if there is an issue with the flow (especially helpful in the winter, we stay too warm to winterize but I’m not outside daily) or chemicals. It also tracks trends to help you manage. Recently, my unit stopped taking readings and the troubleshooting guides didn’t correct it. I contacted support through the app chat feature and was connected with Arnaud who was helpful and patient - he stayed with me as I tested the unit and confirmed it was malfunctioning and was able to check my data in the app. And then sent me a brand new unit! No hassle, no fuss. He even sent instructions to update to new unit (and keep my pool data) in the app. Easy and helpful. Thank you! **Developer response:** Thank you so much for sharing your experience and for being a WaterGuru user for the past couple of years! We’re really glad the daily updates and alerts have been helpful in managing your pool, and that Arnaud was able to assist you and get a replacement unit set up smoothly. If you ever need anything, do not hesitate to let us know. We'll be more than happy to help. – Your friends at WaterGuru. ### 5/5 — Don’t hesitate *2026-03-09, version 7.0.1* After owning a few different pools this is absolute game changer. ### 5/5 — Great product and even better service *2025-11-26, version 6.4.6* I have used this product for three years. I leave for four months each year and depend on this equipment to give me readings and recommendations. Most people pay for a service while they are gone and that can run 250 a month. I just call my friend that lives next door and ask him to add ?? Chemicals about every three weeks. This week the unit stopped working and Arnaud at Water Guru walked me though some tests and declared the unit faulty. Much to my delight he sent me another unit free of cost. It does not get any better than that. ### 5/5 — Best pool product! *2025-10-24, version 6.4.6* I’ve had a Guru for over two years and have referred several friends with pools and or spas. Works great. Tells you what to add to keep your pool or spa in perfect condition. No drops to add to change colors. Then you have to figure out what to add. It’s so easy. The Guru tells you what to add and how much. And their customer support is outstanding. Arnaud walked me through an issue I had reconnecting to the Guru. Problem solved! Can’t recommend them any higher! ### 5/5 — Works! *2025-10-02, version 6.4.6* Great product that works as advertised, with a support service that excels. So glad I did this! ### 5/5 — FINALLY…a solution *2025-09-08, version 6.4.6* I’ve had a pool for thirty years. For the first time in all those years I’ve found a product that has kept my pool water sparkling clean because I get a daily notice of what needs attention. I give this one five big stars. Wished I’d had it earlier. ### 5/5 — Great product Great service *2025-08-27, version 6.4.6* I’ve had my Sense 2 for about 2 years. It has given me great information and direction. My pool water is crystal clear. The unit recently stopped reporting. I contacted Water Guru, they replaced the unit. All contacts were done in one day. Product shipped the next day. My experience has been superior in all aspects. ### 5/5 — Great product and support *2025-08-21, version 6.4.6* Support team is awesome and proactive. The product itself is great. Love not having to physically test water. Just check test results and add chemicals accordingly. --- *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 2026-08-27.*