Six cards describing categories of firearm-related mobile apps: carry law, range finders, ballistic calculators, match scoring, app store limits, and privacy and update cautions.

2A Apps

2A Apps: Mobile Tools for Law-Abiding Gun Owners

Smartphones now carry much of what a responsible gun owner once kept in binders and pocket cards: state carry laws, reciprocity maps, range directories, ballistic data and match scores. This page from Minuteman University.com describes the main categories of firearm-related apps, with real, verified examples, so owners know what kinds of tools exist and what their limits are. Naming an app here is not an endorsement or a ranking.

Six cards describing categories of firearm-related mobile apps: carry law, range finders, ballistic calculators, match scoring, app store limits, and privacy and update cautions.

The most widely used category is carry-law and reciprocity apps. The U.S. Concealed Carry Association announced its USCCA Mobile App for iOS and Android on April 9, 2026, with an interactive reciprocity map, travel alerts and state-by-state law summaries, open to members and free users. Independent apps such as CCW – Concealed Carry 50 State and CCWCalc also summarize state carry rules. For finding a place to shoot, the National Shooting Sports Foundation relaunched its free Where To Shoot app on March 11, 2026, with a nationwide range directory also searchable at WhereToShoot.org.

Precision shooters and hunters rely on ballistic calculators. Hornady released its Hornady Ballistics app with the company’s 4DOF (four degrees of freedom) solver as a free download in November 2017; other long-running calculators include Strelok Pro and Applied Ballistics products. Competitive shooters use PractiScore, the scoring system used at many USPSA, IDPA and other club matches, and shot-timer apps that use a phone’s microphone to log draw and split times. Phone-based timers are useful for dry-fire and practice but are generally less reliable on a loud, multi-bay range than a dedicated hardware timer.

Gun owners should also know that the two major app stores restrict firearm apps. Apple’s App Review Guideline 1.1.3 bars apps that “facilitate the purchase of firearms or ammunition,” and Google Play’s Dangerous Products policy bars apps that facilitate the sale of firearms, ammunition or certain accessories, or that give instructions for manufacturing firearms. As a result, buying and selling generally happens on websites rather than in apps, and some firearm businesses offer only a mobile website. Federal NFA paperwork is handled through ATF’s eForms web portal, not an official phone app.

Key Facts

  • April 9, 2026: USCCA announced its mobile app with reciprocity map, travel alerts and state law summaries (iOS and Android).
  • March 11, 2026: NSSF relaunched its free Where To Shoot range-finder app for iPhone, iPad and Android.
  • November 2017: Hornady made its 4DOF ballistic calculator app free.
  • Apple Guideline 1.1.3: prohibits apps that facilitate the purchase of firearms or ammunition.
  • Google Play Dangerous Products policy: prohibits apps that facilitate sales of firearms, ammunition, magazines over 30 rounds or devices that simulate automatic fire, and firearm manufacturing instructions.
  • October 9, 2026: ATF announced it will not enforce NFA approval and registration for suppressors, SBRs, SBSs and AOWs; machine guns and destructive devices are unchanged. Paperwork apps or guides written before that date may be out of date.

What Gun Owners Should Know

  • Treat reciprocity apps as a starting point. Laws change often; confirm with the destination state’s official statutes or attorney general page before traveling. See State Firearm Laws and 50 States of 2A.
  • Check the “last updated” date inside any law app; an app that has not been updated in months may not reflect new carry or NFA rules.
  • Review app permissions. Many apps request location, contacts or photo access they do not need; limit access to what the feature requires.
  • Ballistic apps are only as good as the inputs. Verify drop data with real shots on paper at known distances before relying on it in the field.
  • Use official sources for federal forms: ATF’s eForms portal and atf.gov, not third-party apps that ask for personal or payment information.
  • For training and match calendars across the network, see Gun Calendars.com and After Action.net; for NFA topics, NFA Buyers Guide.com.

Sources