Orenda

Hasa, Inc.

About this app

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.

Ratings and reviews

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.

Easy to use and accurate!

Great app. It has really helped me to dial-in the chemistry on my pool. My pool is much easier to maintain using this app.

What’s new

Minor fixes