★★★★★
ICO works great. I can’t imagine my pool without it. It also helps me spend less on chemicals.
xavier krenger
October 22, 2024
★★★★★
This really helps me take care of my pool. It’s simple to use and works well. I highly recommend it!
Gilles Renner
September 30, 2024
★★★★★
It’s very handy and works well.
Bri1951
September 22, 2024
★★★★★
I’ve used ICO for 2 years and I’m happy with it. I wish I could make a data table so I can note what I’ve done.
Jean-Marie
July 30, 2024
★★★★★
I wish there was a quick guide for fixing pool levels, like “add chlorine to raise ORP.” That would help a lot.
Alain Bliquy
July 27, 2024
★★★★★
Very helpful app that goes with the ICO sensor. The info is clear. It would be nice if we could tap “OK” for simple notices (like cold water). Also, when buying a new probe, a small tool for changing it would be great.
Chouchou 27
July 25, 2024
★★★★★
Easy to install and helps me watch my water every day, even from far away. I recommend it.
Frédérick Claudet
July 21, 2024
★★★★★
It’s really helpful.
whoetbe
May 16, 2024
★★★★★
I love it. Since I got ICO, I don’t worry about my spa. It tells me exactly what to add.
Sull972
March 28, 2024
★★★★★
It’s really good. A bit pricey, but it makes taking care of the pool easy. Just follow what it says.
gerard demare
January 27, 2024
★★★★★
Very good product. I wish it worked with Google, but it’s still super useful and made in the USA. Thanks!
T. M
December 15, 2023
★★★★★
Great sensor. Customer service is quick to help. It works with salt and shows how much salt is in the water. I like that the battery is rechargeable.
philippe pinto
October 12, 2023
★★★★★
I had some trouble after an update, but they fixed it in one day. Now it’s back to 5 stars from me. Thank you!
Claire Garcia
June 23, 2023
★★★★★
Good app. I wish there was a widget so I could see info without opening it.
Thomas De Boni
May 13, 2023
★★★★★
Awesome. I barely ever check the water now. The app is easy and shows how things change. It can be a bit pricey, but I still recommend it.
Michael Lellouche
December 29, 2022
★★★★★
My pool water has been fine since I got this. No more test strips. I recommend it.
Gisèle Rainha
September 10, 2022
★★★★★
A must-have for pool owners. I use fewer chemicals now. It tests the water every hour. I’m very happy with it.
Georges Boulanger
September 4, 2022
★★★★★
Helps me do regular water tests. It tells me how much product to use.
patrick DIVRY
September 2, 2022
★★★★★
Very easy to use and helps me add just the right amount of chemicals. I never get cloudy water now.
Jean-Luc MATHIEUX
August 30, 2022
★★★★★
A great tool that keeps my pool safe. The readings are spot on. I highly recommend it!
Jacques DAMBRE
August 29, 2022
★★★★★
A great buddy for my pool. My water stays clear all summer. It saves me money on chlorine. I just wish I could export data to Excel.
Lvt Guillaume
June 28, 2022
★★★★★
I love this app and the ICO. It makes things so much easier for my pool. I did have a small glitch after winter, but I reinstalled it and it was fine.
amandine marché
June 28, 2022
★★★★★
I got the ICO today. It was quick to set up and matches my test strips. The app is easy to use. So far so good!
Cindy Bardalou
June 1, 2022
★★★★★
Great product. I wish there was a notebook feature so I could write down how I fill my spa and which chemicals I use.
Alex Kaleas
March 9, 2022
★★★★★
Three seasons of clear water with no issues. It’s been worth the money because I buy fewer chemicals.
Maxime erard
August 21, 2021
★★★★★
It’s so easy to figure out what my water needs. I don’t worry about pool chemicals anymore.
eljuicio
July 23, 2021
★★★★★
A really good device for spa water. I only wish it cost a bit less. Enjoy your swim!
Olivier Chevrier
June 25, 2021
★★★★★
I’m very happy with ICO after one year. It lets me check on my pool even when I’m away. I do recommend it.
pierre lenherr
March 6, 2021
★★★★★
Great app. The best of all the connected pool testers I’ve tried.
Prestige Nature
August 16, 2020
★★★★★
The app is awesome. The product helps me keep my pool water balanced. I’d love a “measure now” button, and maybe push alerts when levels get too high or low.
Franck V
July 15, 2020
★★★★★
I like the new version of the app. I’ve used ICO for two seasons. It’s strong and helps keep my pool in good shape.
Bernard
July 9, 2020
★★★★★
It’s perfect now. I did wish for more accurate temperature readings, and now I have it. Thank you!
Philippe Tri
May 28, 2020
★★★★★
The older version was good, and the new one is even nicer. Great job.
Richard BONNEZ
May 18, 2020
★★★★★
This French company did a great job. The newest version of the app is really nice!
A Google User
May 18, 2020
★★★★★
Very well made. Setup was easy if you follow the guides. It checks the pool all the time and warns me right away.
Melrch
September 24, 2019
★★★★★
Easy to use, and the readings are right. Support answers fast. I do wish it had widgets and a graph with everything on it.
A Google User
September 10, 2019
★★★★★
A great device that sends alerts at the right time. I spend much less time keeping the water clean. Just remember to calibrate the sensor first.
Staniorlpb84
September 9, 2019
★★★★★
Very good. Simple to set up. I’m excited to see how the readings go.
Chamalow222
September 8, 2019
★★★★★
Really cool. Much better than dipping test strips every week.
whiterabbit64
May 24, 2019
★★★★★
Works great. Thanks to the makers of Ondilo.
A Google User
May 6, 2019
★★★★★
The app gets updated often, and customer service is always there. I wish I could pick which alerts I want, like when it gets too cold.
A Google User
December 22, 2018
★★★★
Overall rating is 4.6 out of 5 stars from 779 reviews.
avis 4.6 (779)
5
★★★★★
After 6 months, I’m getting strange results. I bought test strips on Amazon. I’ll try recalibrating.
Patrick Daverat
November 28, 2024
★★★★★
I’ve had ICO for 4 years, and now the battery is dead. They offered me 50% off a new one, but it’s already expensive, and new probes cost too much. I’m not happy about it.
Sébastien P
July 23, 2024
★★★★★
I used ICO since 2020, but now it’s broken. The pH sensor won’t calibrate. Customer service offered me 40% off a new one, but that’s still a lot of money.
Pascal MUSCAT
July 12, 2024
★★★★★
It works well for water care, but the battery doesn’t last. It’s way too expensive for just a few months of use. They should fix the battery issue.
Sophie Bernard-Lemonnier
July 6, 2024
★★★★★
I keep having Wi-Fi problems. It used to work fine, but now I get errors. Might be an issue inside ICO.
Franck Gaudel
June 29, 2024
★★★★★
An update won’t install, and the app has bugs since the latest Android version. Hoping for a fix soon. Otherwise, I like it.
Kev
June 24, 2024
★★★★★
I replaced parts when I first got it, and now, three seasons later, it’s broken again right after the warranty ended. 419 USD for just three summers is not good. Let’s see if support helps or not.
Julien LESSIRE
June 24, 2024
★★★★★
I’ve had ICO for 5 years and liked it, but after the last update, I can’t see any readings. Even reinstalling didn’t help. I hope they fix it soon.
Pierre Gély
May 27, 2024
★★★★★
I liked it before, but today the app won’t start at all. I tried everything. I hope it’s fixed soon. Also, the pH probe was tricky before, so I hope that doesn’t happen again.
David Favier
May 20, 2024
★★★★★
It wouldn’t start at first, but they fixed it in a day. It’s better than Flipr, which was super unstable. Still, it was annoying at first.
A. F.
May 20, 2024
★★★★★
After the 4.1.1.5 update, the app often won’t open. I’ve tried reinstalling, but no luck.
andré Janssens
May 19, 2024
★★★★★
Great app, but it stopped working this morning. Even after uninstalling, it won’t open.
Elodie D
May 19, 2024
★★★★★
The app won’t launch after the latest update in May 2024. Please help!
Joebar Joebar
May 19, 2024
★★★★★
It’s not very stable, but the support team is great. I wish I didn’t need them so often.
Bernard Serre
December 31, 2023
★★★★★
I’ve had it since 2019, but I always have issues each season. This year it died right after the warranty. The repair cost is high. I don’t think it’s reliable.
Joël HOFFMANN
September 30, 2023
★★★★★
The app crashes a lot. I’m not happy I spent so much and still need test strips. I might just toss it.
Luis Duport
May 23, 2023
★★★★★
I wish I could turn off some alerts. Also, I need graphs for more than one month. This is a big headache for me.
M H
May 23, 2023
★★★★★
It stopped working today and I couldn’t open the app. Later it started working again, but that was really annoying.
Stéphane
May 10, 2023
★★★★★
My ICO often has problems connecting or reading the probe. They swap it quickly, but it’s still a hassle.
Véronique Retailleau
February 11, 2023
★★★★★
The product is good and the app is nice. I saved some money on chemicals. But I don’t like that I can’t turn off the maintenance tips—they keep popping up in my home system.
gu pi
August 19, 2022
★★★★★
After 3 years, the board failed and Ondilo won’t cover it. They offered 40% off a new one. That’s still expensive. I’m disappointed.
coujokj
July 31, 2022
★★★★★
It’s pretty complete, but there’s no TAC reading, and it keeps telling me to add too much pH minus at first. So I don’t always follow its advice.
Rudy Deleplanque
June 28, 2022
★★★★★
It’s helpful if everything works. But I can’t export data, and the API doesn’t work. They haven’t replied for 2 months. Not good.
Ss Tt
October 18, 2021
★★★★★
More network issues. I have to use test strips now. The app says ICO is connected but can’t reach the server. Not good.
Christophe Bouquet
September 5, 2021
★★★★★
Bought it 2 days ago, but it’s not showing any data. The chart is empty. Useless right now.
francois beubeuz
August 23, 2021
★★★★★
If your servers are down, tell us! I wasted hours trying to fix it myself. It also clogs up your support line.
Axel Schicks
August 23, 2021
★★★★★
I paid 400 USD and only had 2 good days. Now it won’t connect, and support isn’t helping. It’s an expensive piece of junk.
toto tata
June 1, 2020
★★★★★
Helpful, but my redox sensor was off from the factory. I had to recalibrate after 2 weeks so it wouldn’t tell me to use too much chlorine.
James Howlett
May 19, 2020
★★★★★
Works well and makes maintenance easy, but I miss the hardness reading from older versions. Also, I’d like Google Assistant support.
Remi de Jouvencel
May 18, 2020
★★★★★
It works well and is accurate. The battery lasts about 6 months. I recommend it.
Tity Ours
February 22, 2025
★★★★★
I’m let down because the device isn’t found. Support only does chat, which is hard if you’re traveling. I’m looking elsewhere.
A Google User
July 8, 2019