Zone Tool is made and published by Jouni Erola. AppBrain is an independent app data site and isn't affiliated with Jouni Erola. The app name, icon, screenshots and description belong to Jouni Erola and are shown as published on the App Store.

About Zone Tool

Zone Tool was a photo & video app developed by Jouni Erola. It was removed from the App Store Jul 23, 2025.

User Ratings

Zone Tool was rated 3.00 out of 5 stars, based on 5 ratings.

App Information

Zone Tool cost $0.99. The app size was 336.00 kB. The last available version was 1.1. The last update was on December 1, 2019.

Technical Requirements

The app had a content rating of Everyone. The app had been available on the App Store since November 2019.

Description by Jouni Erola (from the App Store)

With this tool you can calculate your exposure and needed adjustment for development. It uses zone system theory originally invented by Ansel Adams and Fred Archer.

Price	$0.99
Rating	3.00 based on 5 ratings
Version	1.1
App size	336.0 KB
Suitable for	Everyone

This app is currently not available on the App Store.

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Screenshots

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Changelog of Zone Tool

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Developer information for Jouni Erola

Jouni Erola

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Technologies used by Zone Tool

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Zone Tool