DoD Systems Engineering vs ESF#3 Field Guide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DoD Systems Engineering
This app serves as a pocket reference for the Department of Defense Systems Engineering Technical Review process. It offers definitions for nearly 250 acronyms, details on Technology Readiness Levels, and in-depth information on review phases and technical processes.
- Acronym lookup (250+ definitions)
- Technology Readiness Level definitions
- Review information by phase
- Phase details (Materiel Solutions Analysis to Operations & Support)
- Technical and technical management processes
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This app provides a handy pocket reference for engineers and logisticians involved in the very complex Department of Defense Systems Engineering Technical Review process. Features include: *Acronym lookup - nearly 250 acronyms defined! *Technology Readiness Level definitions *In-depth review information sorted by phases *In-depth phase information, from Materiel Solutions Analysis through Operations and Support *Comprehensive Information on technical and technical management processes All ThinChip Software apps are now available free of charge.
ESF#3 Field Guide
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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.
Screenshots
Verdict
The clearest difference is update cadence: ESF#3 Field Guide at every 2 weeks against DoD Systems Engineering's every 5 months. ESF#3 Field Guide also leads on iOS requirement (16.4 vs 26.0). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DoD Systems Engineering ships an update every 5 months, ESF#3 Field Guide every 2 weeks. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.
| Parameter | DoD Systems Engineering | ESF#3 Field Guide |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (4 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 10 MB | 98 MB |
| Age rating | 4+ | 4+ |
| Developer | Russell Shannon | Donald Schlack |
In-app purchases
DoD Systems Engineering
No in-app purchases
ESF#3 Field Guide
No in-app purchases
Questions
Is DoD Systems Engineering free?
Is ESF#3 Field Guide free?
Do DoD Systems Engineering or ESF#3 Field Guide have ads?
Which is updated more often, DoD Systems Engineering or ESF#3 Field Guide?
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