Get in Touch

We'd Love to Hear
From You

Questions about an app, a book, or the knowledgebase? Want to request new content? Send us a message and we'll get back to you.

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Email
mlistrita@gmail.com

We respond within 24 hours on business days.

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Response Time
Within 24 hours

Available Monday through Friday, business hours.

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Where We Ship
Worldwide

Apps and books available globally via the App Store and Amazon.

Send a Message

We'll reply to your email within 24 hours.

Frequently Asked Questions

What is EngineersUniverse?
EngineersUniverse is a platform for engineers and technical professionals. We offer 78+ iOS apps, 51+ Kindle books on Amazon, a free technical knowledgebase, and a web app for government contractors.
Are the iOS apps free?
Many apps are free to download on the App Store. Some offer in-app purchases for premium content. Browse the full catalog at engineersuniverse.com/apps.
Where can I find your Kindle books?
All our books are available on Amazon Kindle. You can browse the full catalog at engineersuniverse.com/books, where each listing links directly to its Amazon page.
Is the Knowledgebase free?
Yes β€” all articles in the Knowledgebase are completely free. No account required. Topics include NEC code, AI automation, HVAC design, construction drawings, and exam prep.
How do I report an issue with an app or book?
Email us at mlistrita@gmail.com with the app or book name and a description of the issue. We typically respond within 24 hours on business days.
Do you take requests for new apps or books?
Absolutely β€” we love hearing from professionals in the field. Send us your idea at mlistrita@gmail.com and we'll consider it for the next release.
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Prefer to email directly?
mlistrita@gmail.com