# ExpSAFE: Blast — Professional Edition

> Professional Edition (iPhone/iPad app by Gary Gibbs.)

- Source: https://appshunter.io/ios/app/expsafe-blast/id1569336679 (this page in markdown: same URL + `.md`)
- Developer: [Gary Gibbs](https://appshunter.io/developer/1473351636)
- Category: Reference, Productivity
- Price: $19.99
- Age rating: 4+
- Requires: iOS 26.0 · 61 MB
- Languages: American English
- Released: 2021-06-02
- Data updated: 2026-07-26
- User reviews in markdown: https://appshunter.io/ios/app/expsafe-blast/id1569336679/reviews.md

## What is ExpSAFE?

**ExpSAFE Blast Calculator Pro** is a ‘Level 1’ mobile engineering tool designed to facilitate blast wave assessments in support of rapid safety assessments. The tool predicts blast effects resulting from explosions. Overpressure calculations were formally validated against US Army Technical Manual 5-855-1 ‘Fundamentals for protective design for conventional weapons’ (CONWEP). Note that CONWEP is an unclassified international recognised modelling tool for calculating explosion effects and is widely utilised within the explosive safety community. The primary reference source for the formulae utilised in this application was the International Ammunition Technical Guides (IATG) 01.80: Formulae for Ammunition Management (with UNODA permission).

It is noteworthy that the UNODA project ‘UN SaferGuard’ has made significant contributions to the field of ammunition safety. Their website serves as an excellent resource for technical information, offering a comprehensive range of complimentary online tools. The site introduces and summarises scientifically proven and sound formulae that can support decision-making and risk management processes.
 
FEATURES OF THIS VERSION 

This professional edition provides the following functionality:

* Determine blast effective yield based on Net Explosive Quantity and TNT equivalence.
* View predicted hemisphere blast wave characteristics.
* Provide summary of potential damage and injury probabilities (indoors and outdoors) based on ‘probit’ functions.
* Display open source injury and damage thresholds distances linked to air blast overpressure.
* View selected injury or damage circles around user coordinates for a potential explosive site linked to Apple Maps imagery.
* Layer3Services ExploSim Receiver threshold distances.
* Low Level Blast assessments (open and confined) environments.
* Toggle between imperial and metric units for input parameters.

Who is GSS?

Gibbs Software Solutions (Aust) is a privately owned small business established to market the ExpSAFE suite of applications. The developer and founder is a Defence veteran with over 40 years of military service in the field of explosives safety. 

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Disclaimer Statement

The outcomes presented in this application have been technically validated to the extent feasible by the developer. However, it is imperative for the user to acknowledge the limitations associated with Level 1 Engineering Tools. This application is solely intended for advisory purposes and has not been formally approved for authoritative analysis or decision-making assessments. Consequently, the author and developer cannot be held liable for any unforeseen consequences or accidents arising from decisions supported by this application.


## Version history (last 5 releases)

### 26.0.1 — 2025-12-13

The app features an interface update to take advantage of IOS 26 features, this version adds additional functionality associated with consequence analysis.

### 6.5 — 2025-04-20

This update incorporates bug fixes, subtle interface modifications, and the introduction of added functionalities aimed at enhancing product usability.

### 6.0 — 2025-01-18

This update incorporates updated interfaces tailored to specific devices (iPhone, iPad, and Mac) being utilised and view update bug fixes.  Additionally, the product includes supplementary content as part of its ongoing development and improvement.

### 5.5.1 — 2024-09-18

This update features a new icon set for iOS18, minor interface changes, and better alignment of information content.

### 5.0 — 2024-07-07

Minor update to the user interface and added functionality.

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## More apps by Gary Gibbs

- [GIBs COIN SIM](https://appshunter.io/ios/app/gibs-coin-sim/id1582285952)
- [EXPLOSIM Companion App](https://appshunter.io/ios/app/explosim-companion-app/id1591130447)
- [AASTP- 1: QD Companion](https://appshunter.io/ios/app/aastp-1-qd-companion/id1615648717)
- [ExpSafe: Projectiles](https://appshunter.io/ios/app/expsafe-projectiles/id1639672681)
- [AASTP-5: FD Companion](https://appshunter.io/ios/app/aastp-5-fd-companion/id6621190368)

All apps by Gary Gibbs: https://appshunter.io/developer/1473351636

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-26.*