Apps Like HumiGuide for iPhone and iPad
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HVACR Check & Charge
Copeland LP
Calculate refrigerant charges instantly
Calculate refrigerant charges for systems using built-in formulas. Input system parameters to determine correct levels for R-22, R-410A, R-32, and other refrigerants. Save and export calculation results for record-keeping.
DMV Genie: Permit Test 2026
Elegant eLearning
Study DMV tests for all 50 states
Prepare for DMV tests with state-specific questions aligned to official driver manuals. Practice exams cover car, motorcycle, and CDL licenses. Track progress and review answers for each question. Receive instant feedback after each .
CDL Test Prep 2026
Hanh Le
Study state-specific CDL tests and track progress
Study for the CDL exam with state-specific practice tests for all 50 states and endorsements. Track progress in real time. Access questions on General Knowledge, Air Brakes, and Hazmat.
CDL Practice Test 2026 by ABC
Thanh Hung
Tests, track progress, learn CDL rules
Prepare for CDL exams with realistic tests and AI-driven explanations. Track progress with detailed reports. Study all knowledge areas and endorsements. Simulate exams for General Knowledge and specialized tests. Receive instant feedback on answers.
CDL Practice Test®
The PATG Group, Inc.
Study CDL exam questions and track progress
Prepare for the CDL written exam with tests and question banks. Simulate exam conditions with realistic tests. Review detailed explanations for each answer. Track progress and identify weak areas. Study commercial driving regulations and terminology.
PDG PROmote 2026+
DeCesha, Inc.
Study guides, track progress, update free
Track promotion progress with study guides and test prep materials. Access lifetime updates without additional costs. Manage study schedules and review content for Air Force promotions.
Deen Buddy - Quran Chat
ZAMZAM TECHNOLOGIES LLC
Ask questions, get daily verses, track prayer
Access Quranic knowledge with AI-powered answers to questions about meanings, tafsir, and context. Receive daily verses, bookmark favorites, and track prayer times for accurate notifications.
Copeland Mobile
Copeland LP
Access product specs and details anytime
Access product specifications for air conditioning and refrigeration equipment. Search by model number, view detailed technical data, and download documentation. Login with existing OPI credentials or create a new account.
Military Money: Pay & Pension
Deeline Productions, LLC
Plan financials and track retirement savings
Calculate current pay for daily, monthly, and yearly scenarios including National Guard and Reserve UTA Drill pay. Track retirement planning with detailed financial forecasting tools. Input family financial data to make informed budgeting decisions.
CDL Prep: Exams & Study Guide
Line Century Global Joint Stock Company
Tests, practice , prepare for CDL license
For the CDL exam with practice tests, practice test combinations, and real test questions. Access general knowledge, hazmat, passenger vehicles, and air brake topics. Review answers and track progress through exam simulations.
Find My Lost Device & Track
WL Online Marketing LLC
Detect devices with Bluetooth signal
Devices using Bluetooth signals. Scan with radar to detect nearby devices. View distance score to narrow down location. Locate devices on a map after saving them to your account.
Electrician Handbook — Basics
Sergey Vavaev
Access theory, diagrams, and calculators offline
’s provides access to electrical theory topics, including exercises with answers. Features interactive diagrams for hands-on learning. Includes calculators and formulas for electrical calculations. Works offline without ads or subscriptions.
HazMat Reference
784767 Alberta Inc.
Look up hazard info instantly
Access hazardous material data including NIOSH, CFR/HMT, NFPA, GHS, and CAMEO information. Search, sort, and filter materials by properties or response guidelines. View emergency response guides and safety regulations for handling and storage.
Racing Schedule for NASCAR
Tom Aude
Track races, standings, and leaderboards
View race schedules and standings for the Cup Series with a single click. Access historical race data from past seasons. Browse driver and track directories.
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