# PoolLevels — Pool chemistry, calculated

> Pool chemistry, calculated (iPhone/iPad app by ALSTIG INC.)

- Source: https://appshunter.io/ios/app/poollevels/id6809644558 (this page in markdown: same URL + `.md`)
- Developer: [ALSTIG INC](https://appshunter.io/developer/1775258443)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.4 · 45 MB
- Languages: American English
- Released: 2026-10-01
- Data updated: 2026-10-02

## What is PoolLevels?

Type in your pool test readings and PoolLevels tells you what the water is doing and the one thing to add.

Most pool apps hand you a wall of numbers and a red or green face. PoolLevels computes the saturation index the way a water chemist would, says whether the water is corrosive, balanced or scaling, and gives you a single dose sized for your pool, with the arithmetic printed underneath so you can check it yourself.

WHAT IT DOES

Real carbonate chemistry. The saturation index from pH, total alkalinity, calcium hardness, cyanuric acid and water temperature, using the Plummer and Busenberg equilibria and Davies activity coefficients, with the cyanurate correction most calculators leave out.

One thing at a time. Not a list of six chemicals. One dose, sized for your pool's actual gallons, rounded to a precision you can measure with a jug.

The working shown. Every recommendation prints the arithmetic that produced it, so you can see where the number came from instead of trusting it.

Safe handling on every dose. Half first with the pump running, circulate, retest, then the rest. Never mix chemicals. Always acid into water. These are on the recommendation, not buried in a help page.

Your history. Every reading you save, with the date you tested, so you can see whether last month's dose actually did anything.

Strip capture and reading. Photograph a test strip and the app finds it in the photo, records each pad's colour, and can turn those colours into readings by matching them against the bottle's printed chart, corrected where we have paired that strip with a store test. Every reading taken from a photo is labelled as such, any pad whose colour sits far from every chart swatch is marked uncertain, and typing the numbers from a store test is always one tap away.

WHAT IT WILL NOT DO

It will not guess. Leave out calcium hardness or cyanuric acid and it says so rather than assuming a number. That is not fussiness: omitting cyanuric acid moved a real sample by 0.18 and flipped its verdict from corrosive to balanced. A wrong answer delivered confidently is worse than no answer.

It will not track you. No account, no sign in, no advertising. Your readings, your pool and your photos are stored on your phone and nowhere else. The app sends anonymous usage events, such as that a strip was read or the upgrade screen was opened, with no readings, no photos and no location. Purchases go through Apple. Delete it and the data goes with it.

It is not a substitute for a test kit, a product label, or a professional. It calculates from the numbers you give it, or reads them from a strip. A strip reading is a first look, not a test kit result. Read the label on the chemical you are actually using, because concentrations differ between brands.

Terms: https://poollevels.com/terms
Privacy: https://poollevels.com/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| PoolLevels Pro Annual | $41.99 | per year |
| PoolLevels Pro Monthly | $4.99 | per month |


## Is PoolLevels safe?

Not enough ratings yet to assess PoolLevels.

## Is PoolLevels legit?

PoolLevels appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for PoolLevels is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.1 — 2026-10-01

No release notes.

## More apps by ALSTIG INC

- [The Restaurant Consultant](https://appshunter.io/ios/app/the-restaurant-consultant/id6759510319)
- [My Cookbook: Recipe Scanner](https://appshunter.io/ios/app/my-cookbook-recipe-scanner/id6759684127)
- [ChefScale: Recipe Scaling](https://appshunter.io/ios/app/chefscale-recipe-scaling/id6759728525)
- [Review Responder AI](https://appshunter.io/ios/app/review-responder-ai/id6759874324)
- [VendorWatch: Invoice Tracker](https://appshunter.io/ios/app/vendorwatch-invoice-tracker/id6760472888)
- [MenuCraft: Menu Engineering](https://appshunter.io/ios/app/menucraft-menu-engineering/id6761072521)

All apps by ALSTIG INC: https://appshunter.io/developer/1775258443

---

*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 2026-10-02.*