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.

Scrimba
Skills you'll gain: AI Security, Generative AI Agents, Agentic Workflows, LLM Application, AI Personalization, AI Integrations, Agentic systems, Cloud Hosting, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Cloud Deployment, Generative AI, Application Deployment
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Database Development, Database Systems, Database Management Systems, Performance Tuning, Data Access
Intermediate · Course · 3 - 6 Months

LearnQuest
Skills you'll gain: JUnit, Unit Testing, Software Testing, Test Tools, Java
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Test Script Development, Performance Testing, Performance Stress Testing, Test Tools, Verification And Validation, Software Testing, Test Data, Data Validation, Scripting, Application Performance Management, Scenario Testing, Proxy Servers, Distributed Computing, Software Installation, System Monitoring
Intermediate · Course · 3 - 6 Months

UBITS
Skills you'll gain: Selling Techniques, Benchmarking, Closing (Sales), Consultative Selling, Retail Sales, General Sales Practices, Negotiation, Sales Strategy, Overcoming Objections, Sales Presentations, Accountability, Customer Relationship Management (CRM) Software, Value Propositions, Customer Relationship Management, Customer experience strategy (CX), Business Development, Emotional Intelligence, Accountability Frameworks, New Business Development, Personal Development
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Sustainable Business, Sustainability Reporting, Environmental Social And Corporate Governance (ESG), Corporate Sustainability, Sustainability Standards, Sustainable Development, Corporate Strategy, Climate Change Mitigation, Supply Management, Environmental Issue, Business Operations, Operational Efficiency, Compliance Reporting, Case Studies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Web Services, Restful API, Apache Maven, Build Tools, Spring Boot, Spring Framework, Gradle, Simple Object Access Protocol (SOAP), Application Programming Interface (API), Java, Java Programming, API Design, Object-Relational Mapping, Data Persistence, Extensible Markup Language (XML)
Intermediate · Course · 3 - 6 Months
University of Michigan
Skills you'll gain: Health Policy, Substance Abuse, Lawsuits, Legal Strategy, Public Health and Disease Prevention, Litigation and Civil Justice, Legal Risk, Epidemiology, Plaintiff, Health Disparities, Regulatory Compliance, Health Equity, Policy Analysis, Research, and Development, Policy Analysis, Public Health, Policy Development, Law, Regulation, and Compliance, Trend Analysis, Public Policies, Risk Analysis
Beginner · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Extensible Markup Language (XML), Hypertext Markup Language (HTML), HTML and CSS, Web Development Tools, Semantic Web, Extensible Languages and XML, Web Design and Development, Web Development, Computer Programming Tools, Development Environment, Verification And Validation, Development Testing, Integrated Development Environments, Debugging
Beginner · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Matplotlib, Tensorflow, NumPy, Pandas (Python Package), Object Oriented Programming (OOP), Seaborn, Python Programming, Artificial Intelligence and Machine Learning (AI/ML), AI Enablement, Keras (Neural Network Library), Scikit Learn (Machine Learning Library), Data Manipulation
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Spring Framework, Java Programming, Java, Application Frameworks, Java Platform Enterprise Edition (J2EE), Maintainability, Scalability, Extensible Markup Language (XML)
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Java, Java Programming, Algorithms, Computational Thinking, Object Oriented Programming (OOP), Functional Design, Development Environment
Beginner · Guided Project · Less Than 2 Hours