Orenda 12+

Pool Calculator and Education

Pure Planet Science & Technology

Designed for iPad

    • 4.7 • 241 Ratings
    • Free



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.

What’s New

Version 3.12.3

Fixed survey submission.

Ratings and Reviews

4.7 out of 5
241 Ratings

241 Ratings

Poolmandad ,

Super helpful

Fantastic App! I’ve been a pool tech for over 25 years servicing everything from large commercial facilities to small residential fanny dunkers. I’ve used and applied the LSI parameters for water balance and have used the “water wheel” for years until Orenda showed off their new app at one of our IPSSA meetings. Having the app show the various adjustments and results instantaneously is a huge help and has really made a difference in understanding what needs to be adjusted with each pool/spa. I use the app daily and have found that it makes it easier than ever to “know” exactly where the water falls on the LSI. And now with the new update, it’s even better to know what the ph ceiling and carbonate alkalinity are! Thank you to everyone at Orenda for helping move the industry forward and for providing top tier education for all!

dclark1025 ,

Innovative and Amazing App

I have been looking for a dosing calculator to add to my service fleet for years- they all leave something to be desired. This app should not be free!!! It has everything I need to get and keep my crew on track- the ability for them to easily email me results puts it over the top.I stumbled upon the app by chance and it was the best thing that’s happened for my company as far as software ever!!! Being able to easily show my guys the relationship of chemicals and how they affect LSI gave them a more thorough understanding that a balanced pool is not always a perfectly balanced pool. Finally- what a timesaver!!! Seeing dosage requirements laid out in exact ounces instead of trying to go through the Taylor book page by page and do math.... innovative and necessessary. I’d pay for this

pbj pool ,

The new industry standard

LSI has been overlooked for 100 years in swimming polls. It’s the most important factor in protecting your pool finish and extending its life and beauty. I use this app every single day and my customers love the added value it brings to provide them their Saturation index as part of their maintenance service. No more formula and factor note cards one stop shop app for dosing and saturation index plus bonus content and videos all for free. The best pool app out there IMO. Thank you Orenda for advancing the industry to a new standard and opening eyes

App Privacy

The developer, Pure Planet Science & Technology, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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