RegO App

Navigation Rules Pro

Access , charts, and COLREGS documents

Calculated Industries, Inc.

Reference

Provides access to COLREGS and Inland , including amendments. It includes sound and light signals, steering and sailing , and other essential boating references. Users can search and bookmark regulations for quick reference.

DRR Rescue

Tom PENDLEY

Reference

The Essential Technical Rescue Field Operations Guide is now a multi-media App.

Navigation Rules

Calculated Industries, Inc.

Reference

Navigation Rules contains a complete copy of the International Regulations for Preventing Collisions at Sea, 1972 (COLREGS), including amendments and the Inland Navigation Rules, in effect for all inland waters, including the Great Lakes.

Posted! - List Pro & Anti-Gun

Check carry laws and locations

Workman Consulting LLC

Reference

Provides information on legal firearm carry restrictions. Allows users to check locations where carrying is prohibited, such as schools and government buildings. Includes a database of businesses with posted policies.

iEngineer

Look up screw specs and dimensions

Perfectly Simple Apps LLC

Reference

Access screw and bolt specifications with detailed dimensions and material grades. View US screws including 93 sizes and 74 material options. Purchase metric screws for 210 sizes and 86 material grades.

Airplane Flying Handbook

Calculated Industries, Inc.

Reference

Airplane Flying Handbook is the official FAA source for learning to fly and the source for many FAA Knowledge Exams test questions. The Airplane Flying Handbook app is a "must" for all pilots. This app introduces the basic pilot skills and knowledge essential for piloting airplanes.

Home Builder Pocket Reference

Access construction guides and calculators

Calculated Industries, Inc.

Reference

Provides construction information with over 1,500 illustrations, 100 guides on energy-efficient building, and 30 calculators. Users can access topics like construction safety, woodworking methods, concrete placement, and project planning.

Measuring Tape Ruler App

Measure objects with AR precision

AAB Creative Studio LLC

Reference

Use your phone's camera to measure objects, calculate areas, and create floor plans. Access AR measure, , and level tools. Save measurements and switch between metric and imperial units.

RV Pocket Tech

Diagnose and fix RV systems

All Points RV Solutions LLC

Reference

Diagnose and troubleshoot RV air conditioners, heat pumps, water heaters, and furnaces. Access detailed component information and manufacturer data. View system diagrams and repair guides. Subscribe for in- content updates and technical support.

RV Pocket Reference

Calculated Industries, Inc.

Reference

A wide variety of information about RVs and their systems including diagrams and images to show you how things work and what they look like. RV Pocket Reference also includes calculators that let you quickly and easily solve a variety of calculations.

ERG for iOS

Access emergency response data quickly

Pipeline and Hazardous Materials Safety Administration

Reference

Access critical information for hazardous materials incidents. Look up dangerous goods by ID number. View general hazards and safety precautions. Quickly find emergency response procedures. Navigate an indexed list of substances.

P-T Calculator

Calculate pressure and temperature

National Refrigerants, Inc.

Reference

Calculate pressure and temperature values for refrigerants. Input pressure or temperature to automatically compute the other. Display superheat and subcool values. Show saturated vapor and liquid values for blends. Switch between refrigerant types.

Pond King App

Learn facts, track water levels, connect

POND KING, INC.

Reference

Manage health with water quality monitoring, maintenance guides, and seasonal care tips. Track fish growth using the Bass-O-Meter feature. Access educational articles, fishing techniques, and connect with professionals for management advice.

IRPG App (2025)

Search, bookmark, and access content offline

Twisted Kelp, LLC

Reference

Search the entire guide for specific information. Bookmark pages for quick reference. Access content offline. Improve safety and efficacy on the fireline with advanced navigation and quick lookup features.

CAMEO Chemicals

National Oceanic and Atmospheric Administration

Reference

CAMEO Chemicals is a database of hazardous chemical datasheets that emergency responders and planners can use to get response recommendations and predict hazards (such as explosions or toxic fumes).

eNIFOG

Interoperable Communications Technical Assistance Program

Reference

eNIFOG app is an electronic reference of the National Interoperability Field Operations Guide (NIFOG). The NIFOG is a technical reference for emergency communications planning and for radio technicians responsible for radios that will be used in disaster response.