I Work At Site Calculator

by Ryan Knisley · Utilities · Free

On the App Store since January 2026 · Data updated 2026-10-07

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I Work At Site Calculator is made and published by Ryan Knisley. AppBrain is an independent app data site and isn't affiliated with Ryan Knisley. The app name, icon, screenshots and description belong to Ryan Knisley and are shown as published on the App Store.

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Last updated: February 8, 2026

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Version: 1.0.1
Launched: January 2026

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Price: Free
App size: 19.3 MB
Content rating: Everyone

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About the app and developer

About I Work At Site Calculator

I Work At Site Calculator is an utilities app developed by Ryan Knisley.

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App Information

I Work At Site Calculator is freely available from the App Store. The app size is 19.35 MB. The latest version available is 1.0.1. The last update was on February 8, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since January 2026.

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Ryan Knisley

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By Ryan Knisley, from the App Store

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Description by Ryan Knisley Written by the developer, not by AppBrain. Click to read.

I Work At Site Calculator is a lightweight utility app designed for field and site work.

It provides simple, reliable calculators for common on-site tasks, including:

• Drawdown timing with saved results
• Target mix calculations (start from zero concentration)
• Unit conversions for drawdown rates
• Pipe and volume calculations

The app is built to work fully offline with no accounts, no ads, and no data collection. All values are stored locally on your device only.

Designed for quick use in the field on both iPhone and iPad.

Official page on the App Store

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