Article Zero vs Trail Companion
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Article Zero
This app provides service members and their families with essential information on military rights, processes, and support. It covers victim, witness, and supervisor roles, UCMJ articles, jurisdictional breakdowns, and counterintelligence awareness. Includes verified base contacts and case studies for practical understanding.
- Victim, Witness, Subject Rights
- Supervisor Obligations
- UCMJ Articles & Summaries
- Jurisdictional Breakdown
- Counterintelligence Awareness
- Verified Base Contacts Directory
- Case Studies & Knowledge Points
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This all-in-one app empowers service members and their families with clear, reliable information about their basic rights, basic processes, and basic support options. Whether you’re a victim, witness, subject, or supervisor, this tool provides the knowledge you need to protect yourself and others. Features include: • Victim, Witness, and Subject Rights Understand your role within the military. • Supervisor Obligations Get clear guidance on legal disclosures, reporting requirements, and command responsibilities. • UCMJ Articles and Military Punishments Access all UCMJ articles with plain-language basic summaries and summarized legal elements for each offense. • Jurisdictional Breakdown Learn how military, federal, and civilian authorities intersect across different legal scenarios. • Counterintelligence Awareness Recognize how foreign intelligence entities target service members — and how to spot red flags. • Verified Base Contacts Search a nationwide directory of Legal, SAPR, Chaplain, and Behavioral Health numbers at over 250 major U.S. military installations. • Case Studies and Knowledge Points Explore real-world examples and bite-sized educational briefs that show how laws are applied in practice. • Notes Section Securely record observations, incidents, or key takeaways — whether for personal reference or future reporting. This tool is not a substitute for legal counsel nor legal advice, but it is the most accessible, up-to-date companion for anyone seeking to better understand their rights, responsibilities, and resources within the military. Article Zero is not endorsed by, affiliated with, or sponsored by the Department of Defense or any other government agency. All information is sourced from publicly available information and may be incorrect. For the best layout appearance, we recommend the default system text size (Settings → Display & Brightness → Text Size).
Trail Companion
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Trail Companion is the app you open before a hike, not after it. Plan the miles, weigh the pack, and know when you have to turn around, all completely offline. PACK PLANNER Build your kit from a catalog of trail gear and see the three numbers that actually matter: base weight, food and water, and what is worn rather than carried. Type in your own scale readings, and watch pack weight as a share of your body weight against the twenty percent line. Start from a day hike, overnight, or weekend kit and adjust from there. TRIP PLANNER Distance alone never predicts a day. Enter the miles and the climb, pick your group's pace, and get a realistic moving time, break time, finish time, and the turnaround time you should honour whether or not you reached the top. Your pack weight from the planner feeds straight in, because a loaded backpacker does not move at day hike speed. Add sunset and it tells you how much daylight is left over. THE FIELD GUIDE Ten chapters written for trail travel: the ten essentials, planning a hike, what the pack weighs, how long the day really takes, feet and blisters, trail first aid and the decision to walk out or stay put, choosing a backcountry site, food storage and wildlife, weather that ends a trip, and Leave No Trace on a busy path. IDENTIFY WHAT YOU FIND On device identification for plants, insects, fungi and lichen, animals, clouds, and rocks. Nothing is uploaded and nothing needs a signal. OFFLINE NAVIGATION Download map packs before you go and navigate with a compass and bearings when there is no cell service. Works fully offline. No account, no ads, no subscription. One optional purchase unlocks the full guide. Estimates are planning guidance. Terrain, snow, heat, altitude, and group fitness decide the real day, so carry the margin.
Screenshots
Verdict
The clearest difference is in-app purchases: Article Zero at none against Trail Companion's 1. Article Zero also leads on update cadence (daily vs every 9 days) and iOS requirement (15.1 vs 17.0). Trail Companion's advantage is ads (none vs shown). On price 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. Trail Companion sells 1 one-off in-app purchase. Article Zero asks for nothing beyond the download.
Article Zero ships an update daily, Trail Companion every 9 days. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.
| Parameter | Article Zero | Trail Companion |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Daily — better | Every 9 days |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 100 MB | 139 MB |
| Age rating | 12+ | 4+ |
| Developer | Lucas Simmons | SEDX LLC |
In-app purchases
Article Zero
No in-app purchases
Trail Companion
- Study Tools$0.99
Questions
Is Article Zero free?
Is Trail Companion free?
Do Article Zero or Trail Companion have ads?
Which is updated more often, Article Zero or Trail Companion?
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