Orenda
Pool chemicals dosing calculator + LSI
App info
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App description
Android App Analysis and Review: Orenda, Developed by Hasa, Inc.. Listed in Productivity Category. Current Version Is 6.0.1, Updated On 16/04/2025 . According to users reviews on Google Play: Orenda. Achieved Over 69 thousand Installs. Orenda Currently Has 397 Reviews, Average Rating 4.7 Stars
Master pool chemistry with the Orenda pool chemical dosing calculator. Measure pool chemicals accurately while balancing water chemistry according to the LSI. The Orenda App is a swimming pool calculator with a user-friendly experience and makes pool chemistry easier than ever. Try the new pool volume estimator and watch Orenda videos in the app. A pool chemical calculator that allows a novice to dose chemicals as accurately as a professional pool operator.We are currently offering version 6.0.1. This is our latest, most optimized version. It is suitable for many different devices. Free download directly apk from the Google Play Store or other versions we're hosting. Moreover, you can download without registration and no login required.
We have more than 2000+ available devices for Samsung, Xiaomi, Huawei, Oppo, Vivo, Motorola, LG, Google, OnePlus, Sony, Tablet ... with so many options, it’s easy for you to choose games or software that fit your device.
It can come in handy if there are any country restrictions or any restrictions from the side of your device on the Google App Store.
What's New
Login hot fix
Rate and review on Google Play store
Total number of installs (*estimated)
Estimation of total number of installs on Google Play, Approximated from number of ratings and install bounds achieved on Google Play.
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Recent Comments
Ron Seehoffer
This is an amazingly good app. I wasn't quite sure given some of the reviews whether this was going to work for me but it does exactly what I need it to do. It accurately calculates LSI, provides a plethora of explanations and additional information, requires no permissions, and retains all of my previously entered data. The volume estimator was within a 100 gallons on my weird shaped pool. 11,200 vs 11,100 actual. I don't know what else I could ask for. Excellent effort.
A Google user
Orenda's 2.0 upgrade is fantastic! This goes way beyond a dosing calculator and provides important supplementary information on industry concepts and practices, especially in areas that help with 'the long game' of preventing water quality problems and protecting plaster. Every pool professional should have this app.
Alex Garcia
I clean pool for a living and the reason others give this great app 1 star are really silly/lazy and probably fall for conspiracy theories really easily. This app has helped me save chems while keeping my pools looking great. We implement this app with my pool company and has helped us all. Sad to see some not appreciate this app for what it does. I've tried other and doesn't do anywhere near the same.
Lisa Schmidt
Best app I've found for calculating saturation index! The dosing is also super helpful. I would have given 5 stars but wish I could change default settings for my personal hot tub. I'll keep looking to see if there's a way to change default settings.
Mike D.
App still will not work without access to my photos, media and file despite notice that "Pure Planet Science & Technology, Inc. 10/7/19 We don't want access. That was an error that we had to hire better developers to figure out. We didn't realize it was happening, and when we did, it took a long time to solve. Turns out it was something buried deep within the code about how we save and share dosing results. Should be fixed now."
A Google user
It does calculate the LSI and gives dosage suggestions but it requires to enter your targets everytime again. It also doesn't remember the last test result. So every time you have to adjust all numbers of both the actual and the target.
A Google user
For no reason should I need to allow access to my contacts, make/receive phone calls & txts, and all media to use a calculator. No thanks. *update* still requires access to photos & files to use but you're trying to fix this, have made progress and that means a lot.
A Google User
Samsung phone. In my app settings it says NO PERMISSIONS. It is a great app for water balance. Pool has never looked so great. If you're a pro, download this app, it will save you time and chemicals. I'm surprised it's not a pay app