About CertifySphere
We build free, high-quality tools that help developers, engineers, and students earn cloud certifications and grow their technical skills — without expensive courses or paywalled practice exams.
Our Mission
Cloud certifications like AWS Solutions Architect, Azure Administrator, and Kubernetes CKA are real career accelerators — but preparing for them can be expensive and fragmented. Official practice exams cost money. Third-party study guides are scattered across dozens of platforms. Quality varies wildly.
CertifySphere was created to fix that. We offer free, timed, and scored mock exams for the most in-demand cloud and DevOps certifications, with detailed answer explanations that go beyond just telling you the correct option.
Alongside our exam prep tools, we build products that make learning practical — from a paper trading simulator for beginner investors to guided learning paths for developers entering new domains.
What We Stand For
Free access to quality education
We believe nobody should have to pay to practice for a certification exam. Our mock exams are free, unlimited, and always will be.
Learn by doing
Reading about cloud services is not the same as answering exam-style questions under time pressure. We build tools that simulate real conditions.
Honest feedback
Every wrong answer comes with a full explanation. We don't just tell you what the right answer is — we explain why, so the knowledge sticks.
Always improving
Cloud certifications change. New exams launch. We track exam guide updates and continuously revise our question banks to stay current.
What We Build
HalfGrade
— Free mock exams for AWS, Azure, GCP, Kubernetes, and moreHalfGrade is our flagship certification practice platform. It provides free, timed mock exams for the most in-demand cloud and DevOps certifications — AWS, Azure, GCP, Kubernetes, Terraform, Docker, and CompTIA. Every question comes with a detailed explanation so you understand the 'why', not just the answer.
Learn more →HalfGrade Bank
— A growing question bank built for depth and breadthHalfGrade Bank is the question database powering our exam engine. We continuously expand and review questions across all supported certifications, ensuring coverage matches the latest exam guides and real exam patterns.
Learn more →HalfGrade Finance
— Paper trading simulator for beginner investorsHalfGrade Finance is a risk-free trading simulator that helps beginners learn how financial markets work before using real money. Practice placing orders, building a portfolio, and understanding market movements in a realistic environment without any financial risk.
Learn more →MindBloomers
— Structured learning paths for developersMindBloomers is our guided learning platform offering structured paths across full-stack development, DevOps, AI/ML, game development, and more. Each path breaks complex topics into numbered modules with clear learning objectives.
Learn more →Smart Cafe
— A productivity tool for focused work sessionsSmart Cafe is a distraction-free productivity environment designed for deep work. It combines ambient sound, focus timers, and task management in a single clean interface.
Learn more →Who We Serve
Certification candidates
Preparing for AWS, Azure, GCP, Kubernetes, Terraform, Docker, and CompTIA exams
Self-taught developers
Building structured knowledge across full-stack, DevOps, AI/ML, and cloud topics
Students & career changers
Entering the tech industry and building credentials without expensive bootcamps
Get in Touch
Have a question, feedback, or want to work with us? We'd love to hear from you.