# ESQD Mobile > Calculates explosive quantity distances and offers a training game for related skills. (iPhone/iPad app by Serco Inc.) - Source: https://appshunter.io/ios/app/esqd-mobile/id475349771 (this page in markdown: same URL + `.md`) - Developer: [Serco Inc](https://appshunter.io/developer/475349774) - Category: Utilities, Games - Price: Free - Rating: 4.67/5 from 3 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 8 MB - Languages: English - Released: 2011-10-29 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/esqd-mobile/id475349771/reviews.md ## What is ESQD Mobile? Modeled after the Explosives Safety Quantity Distance (ESQD) Calculator Excel Spreadsheet, the ESQD Mobile app can be used to calculate hazard classes and divisions 1.1, 1.2, 1.3, and 1.4 net explosive weight quantity distance (NEWQD) that can be stored in a potential explosion site (PES) or the distance required between a PES and an exposed site (ES). In addition to the calculator, Ammunition Managers, Ammunition Specialists, and Quality Assurance Specialist Ammunition Surveillance (QASAS) personnel can practice critical, on the job skills in the built-in gaming component. The game consists of 10 challenging scenarios that will not only utilize the mobile ESQD calculator, but also leverage knowledge of Army ESQD standards. ## Key features - Calculate net explosive weight quantity distance (NEWQD) - Hazard classes 1.1, 1.2, 1.3, 1.4 support - Practice on-the-job skills with gaming component - 10 challenging training scenarios - Leverages Army ESQD standards knowledge ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/esqd-mobile/id475349771/reviews.md ### 5/5 — Very practical *2018-05-22, version 2.3* This app has been useful for soldier training. ### 4/5 — Extremely useful *2015-12-03, version 2.02* App is extremely helpful would be nice if there was an index for all the acronyms. ### 4/5 — Pocket reference. Great idea!! *2012-04-04, version 1.01* Awesome idea for an app. Scenario 4 solution is wrong though. Answer is too high. IBD to the left restricts NEW to about half of what answer says. Definitely looking fwd to next edition. ### 5/5 — Great app *2011-11-02, version 1.01* This is a great app for the ammo community and a wonderful learning tool. IYAAYAS ### 5/5 — Great app! *2011-11-02, version 1.01* Well done! Liked it! ### 5/5 — Great tool *2011-11-01, version 1.01* Outstanding!! ### 5/5 — ESQD Mobile Support *2011-10-29, version 1.0* What a brilliant tool and learning device! Exactly what is needed, an engaging means to share and teach critical information. Going mobile not only keeps it "at hand" for on-going and spur -of the-moment play, but also turns it into a valuable tool that is exactly where you need it. I applaud the development team! ### 5/5 — Awesome! *2011-10-29, version 1.0* Great app! ## Frequently asked questions about ESQD Mobile ### What is ESQD Mobile used for? ESQD Mobile calculates the hazard classes and divisions 1.1-1.4 net explosive weight quantity distance (NEWQD). It also features a game to practice critical on-the-job skills related to Army ESQD standards. ### Who is the target audience for ESQD Mobile? The app is designed for Ammunition Managers, Ammunition Specialists, and Quality Assurance Specialist Ammunition Surveillance (QASAS) personnel. ### Does ESQD Mobile have ads? The provided data does not specify if ESQD Mobile contains advertisements. However, it is listed as free with no in-app purchases. ### What devices does ESQD Mobile support? ESQD Mobile is supported on iPhone, iPad, iPod, and Apple Watch devices. ### How often is ESQD Mobile updated? The latest version of ESQD Mobile is 2.3, which was last updated on January 5, 2018. This indicates infrequent updates. ### What is the age rating for ESQD Mobile? ESQD Mobile has an age rating of 4+, making it suitable for a wide range of users. ### What is the user rating for ESQD Mobile? ESQD Mobile has a high user rating of 4.7 stars based on 3 ratings. ### Can I use ESQD Mobile offline? The description does not explicitly state offline functionality. However, as a calculator and training game, it is likely designed to function without a constant internet connection. ## Version history (last 1 release) ### 2.3 — 2018-01-05 This app has been updated by Apple to display the Apple Watch app icon. 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User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*