Army Engineer Guide vs Structural SteelBook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Army Engineer Guide
This app provides essential engineering tools and references for military engineers. It offers unit converters, construction calculators, and planning resources designed for offline use in the field. Access field manuals and helpful links without ads or subscriptions.
- Unit Converters (Metric/US/Military)
- Construction Calculators (Concrete, Lumber, Excavation, Sandbag)
- Range Finder
- Customizable Packing Lists
- Field Notes Journal
- Offline Access to Field References
Read full descriptionHide full description
Army Engineer Guide, first published in 2012, totally rebuilt and deployed for 2025 by our New School Army project. Army Engineer tools & reference, no ads, no subscriptions, no accounts and log ins, no data collection, just straight gas to get your Essayons On. ESSENTIAL ENGINEERING TOOLS: Unit Converters - Convert between metric and U.S. units for distance, weight, volume, temperature, area, pressure, and speed. Includes specialized military-specific conversions to support field operations. CONSTRUCTION SUPPORT: Concrete Calculator - Calculate concrete volume, bags, and weight for construction projects with precision. Support for rectangular, circular, and L-shaped designs. Lumber & Nails Calculator - Estimate materials needed for wooden structures. Plan efficiently and eliminate waste. Excavation Calculator - Calculate soil volume and equipment requirements for field fortifications and defensive positions. Sandbag Calculator - Sums up the number of sandbags needed to construct a sandbag wall and estimates the time required based on number of people and speed to fill a sandbag. Individual PLANNING: Range Finder - Visualize distances and ranges on tactical maps. Perfect for developing range estimation skills and planning defensive positions. Packing List - Create, customize and share detailed packing lists for engineering missions. Ensure your team has the right equipment every time. Journal - Document lessons learned and keep field notes organized in one secure location. ADDITIONAL RESOURCES: Field References - Quick access to FM 3-34 and other essential engineering references. Helpful Links - Curated web links for Engineers (schoolhouse, Army engineer Association and so on...). FEATURES THAT MATTER: - Zero cloud dependency - your data stays on your device - No account required - download and start immediately - Built-in sharing for calculations and plans - Designed for offline use in the field Perfect for Combat Engineers, Construction Engineers, and Engineer Leaders who need reliable, offline access to technical calculators and planning tools.
Structural SteelBook
Access a comprehensive reference for structural steel shapes, including multiple AISC library versions. Easily switch between imperial and metric units, sort sections, and perform quick searches. Print or share section properties and cross-sections.
- Multiple AISC library versions (v15, v13, v14, LRFD, ASD)
- Imperial and metric unit switching
- Sort sections by property
- Quick search for steel sections
- Side-by-side imperial/metric equivalencies
- Print and share section properties
- Dark/light mode and dynamic type support
Read full descriptionHide full description
The best Structural Steel reference on app store! Now for iPhone, iPad & Mac! Buy once, run on all your devices, no in-app purchases / limited features gimmicks! From the developer of [steel shapes], the highest rated Structural Steel app since 2009. Now with the latest AISC v15 library, more than 20000 steel entries in 19 libraries & MANY new features. SteelBook contains the latest (v15), previous (ASD 5 - 9, LRFD 1 - 3, v13, v14, v14.1) and HISTORIC American Institute of Steel Construction's Structural Steel Databases in a fast, easy to use interface. LIBRARIES: ---------------------------------------- AISC LIBRARIES: - Current version 15 & 15-SI (NEW!) - Versions 13.2 & 13.2 SI, 13.1.1, 13.1.1 SI, 13, v14 & v14-SI, v14.1 & v14.1-SI - LRFD 1st through 3rd Ed. - ASD 5th through 9th Ed. - HISTORIC UNIT SYSTEM SWITCHING: ---------------------------------------- Properties can be displayed in either the original English units or converted to metric with the tap of a button (libraries 13.2 & newer) SORTING: ---------------------------------------- Sort sections within a library given a specific property in ascending / descending order. QUICK SEARCH: ---------------------------------------- SteelBook also lets you find a section with a quick search function, where, for example, "W16 x 89", "W16x89" or simply "W1689" will locate the same section or its closest approximation. NEW! SIDE BY SIDE EQUIVALENCIES ---------------------------------------- Display Equivalent Imperial / Metric designations side by side while browsing NEW! FRACTIONAL DETAILING VALUES, PROPERTIES & UNITS ---------------------------------------- For library version 15, support for v14 coming soon NEW! PRINT & SHARE ---------------------------------------- Print a section's properties & cross section or Share as a PDF NEW! DARK / LIGHT MODE & DYNAMIC TYPE SUPPORT ---------------------------------------- SteelBook's UI adapts to your device's setting, whether you prefer Dark, Light or adaptive color scheme, SteelBook will naturally adapt to it. Also new is Dynamic type support, SteelBook will adapt its interface to your device's accessibility settings. NEW! UNIVERSAL APP, BUY ONCE, RUN EVERYWHERE ———————————————————— The Steel app for the next decade, run on iOS/iPad (iOS/iPad OS 16 and newer) and on MacOS (10.13 / Ventura). ***************************************** visit us at: www.TheMobileEngineer.com
Screenshots
Verdict
The clearest difference is review sentiment: Army Engineer Guide at 33% against Structural SteelBook's 0%. Army Engineer Guide also leads on price ($0.99 vs $4.99) and iOS requirement (12.0 vs 16.0). Structural SteelBook's advantage is update cadence (every 3 days vs every 3 months). On ads, in-app purchases, monetization model and chart position there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Army Engineer Guide costs $0.99 and Structural SteelBook $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Army Engineer Guide ships an update every 3 months, Structural SteelBook every 3 days. The most recent releases landed on September 12, 2026 and September 20, 2026 respectively.
| Parameter | Army Engineer Guide | Structural SteelBook |
|---|---|---|
| Price | $0.99 — better | $4.99 |
| Rating | — | 4.7 (6 ratings) — better |
| Positive reviews | 33.3% of reviews — better | 0.0% of reviews |
| Number of ratings | — | 6 — better |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #199 | #195 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 38 MB | 71 MB |
| Age rating | 17+ | 4+ |
| Developer | Polemics Applications LLC | David Homes |
Customer experience
Army Engineer Guide
Structural SteelBook
In-app purchases
Army Engineer Guide
No in-app purchases
Structural SteelBook
No in-app purchases
Questions
Is Army Engineer Guide free?
Is Structural SteelBook free?
Do Army Engineer Guide or Structural SteelBook have ads?
Which is updated more often, Army Engineer Guide or Structural SteelBook?
Which is more popular, Army Engineer Guide or Structural SteelBook?
Other comparisons















