Mobile app development courses can help you learn programming languages like Java and Swift, user interface design principles, and app testing strategies. You can build skills in integrating APIs, optimizing performance, and ensuring security in mobile applications. Many courses introduce tools such as Android Studio and Xcode, that support building and deploying apps on various platforms, along with frameworks like React Native that facilitate cross-platform development.
Johns Hopkins University
Skills you'll gain: Surveys, Data Collection, Epidemiology, Public Health, Health Equity, Health Informatics, Health Policy, Public Health and Disease Prevention, Health Disparities, Community Health, Health Care, Research Methodologies, Health Information Management, Data Quality, Chronic Diseases, Health Technology
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unix Shell, Unix Commands, Unix, Shell Script, Bash (Scripting Language), Command-Line Interface, Remote Access Systems, Scripting, Systems Administration, Operating System Administration, Linux Commands, File I/O, IT Automation, Linux, User Accounts, File Systems, System Monitoring, Operating Systems, File Management, Performance Tuning
Beginner · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Accident Prevention, Injury Prevention, Health Equity, Safety Standards, Civil Engineering, Grant Writing, Health Disparities, Systems Thinking, Community Outreach, Public Health, Community Development, Risk Analysis, Cultural Sensitivity
Mixed · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Extensible Markup Language (XML), Hypertext Markup Language (HTML), Web Development Tools, Semantic Web, Web Development, Web Design, Data Validation, Development Environment, Verification And Validation, Integrated Development Environments, Debugging
Mixed · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Docs, Gmail, Google Sheets, Google Workspace, Presentations, Calendar Management, Spreadsheet Software, Setting Appointments, Excel Formulas, Collaborative Software, Excel Macros, Email Security, Data Visualization, Email Automation, Meeting Facilitation, Sales Presentations, Productivity Software, Version Control, Data Management, Organizational Skills
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: LangChain, Development Environment, Agentic systems, AI Workflows, Artificial Intelligence, Tool Calling, LLM Application, Database Systems, Database Management, SQL, Database Application, OpenAI API, Software Development Tools, Prompt Engineering
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Blockchain, Cryptography, Network Security, Secure Coding, Distributed Denial-Of-Service (DDoS) Attacks, Encryption, Cybersecurity, Vulnerability Assessments, Transaction Processing
Advanced · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Digital Media Strategy, Customer Relationship Management (CRM) Software, Digital Marketing, Online Advertising, Email Marketing, Marketing Strategies, Campaign Management, Social Media Strategy, Social Media Marketing, Search Engine Optimization, Marketing Effectiveness, Marketing Communications, Web Analytics and SEO, Marketing, Copywriting, Advertising, Integrated Marketing Communications, Mobile Security, Key Performance Indicators (KPIs)
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Test Script Development, Test Automation, Acceptance Testing, Software Testing, Web Development Tools, Usability Testing, Data Validation, Debugging
Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: IT Management, Technical Management, Risk Management, Project Management, Internal Communications, Data Ethics, Responsible AI, Generative AI, Case Studies, Innovation, Decision Making
Beginner · Course · 1 - 4 Weeks

University of Washington
Skills you'll gain: Social Justice, Community Organizing, Social Sciences, Cultural Diversity, Public Policies, World History, Political Sciences, Advocacy, Governance, Media and Communications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Tensorflow, Transfer Learning, Image Analysis, Keras (Neural Network Library), Convolutional Neural Networks, Applied Machine Learning, Deep Learning, Machine Learning
Beginner · Project · Less Than 2 Hours