ESF#3 Field Guide

Donald Schlack Reference iPhoneiPadiPod touch

ESF#3 Field Guide is a free Reference app for iPhone and iPad by Donald Schlack. Requires iOS 16.4. Updated July 31, 2026.

Price: Free; on the App Store
Size: 98 MB; Age 4+
Updated: Jul 31; 2026 · v4.2

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About ESF#3 Field Guide

The ESF#3 Field Guide App is used by ESF#3 Team Leads, Assistant Team Leads and our federal and state partners during disaster response. It contains references and information about the various missions that USACE executes.

What’s new

Version 4.2 · Updated July 31, 2026

Corrections in colors and updates in the EERT page.

App privacy

The developer, Donald Schlack, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

App details

ESF#3 Field Guide is a free Reference app for iPhone, iPad and iPod touch, developed by Donald Schlack. It requires iOS 16.4 or later and is 98 MB to download. It was first released on July 5, 2022 and last updated on July 31, 2026.

Category: Reference
Price: Free
Version: 4.2
Size: 98 MB
Requires: iOS 16.4 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English
Age rating: 4+
Released: July 5, 2022
Last updated: July 31, 2026
Developer: Donald Schlack

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Alternatives to ESF#3 Field Guide

Looking for apps like ESF#3 Field Guide? Here are 6 similar apps on the App Store. The highest rated is NLCC (5.0/5), and all 6 are free to download.

ESF#3 Field Guide vs. alternatives
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