The world's first iOS native solution
No competition on the App Store. This is the only problem collection app for GH-300.
Prepare for the revised GH-300 GitHub Copilot certification with 500 questions covering Copilot CLI, Agent Mode, MCP, Spark, prompting, responsible AI, privacy, and safeguards. One purchase includes future updates.



While the teaching materials for the old seven domains are becoming obsolete all at once, we will prepare with questions that comply with the new scope of the 2026 revision.
No competition on the App Store. This is the only problem collection app for GH-300.
Includes CLI renewal, Agent Mode, Sub-Agents, MCP, Spaces, Spark, and Plan Mode.
In contrast to weekly subscription competitors, once purchased, updates are free forever. Completely offline.
You can study with questions that comply with the new scope, rather than with revised teaching materials that have become outdated.
GH-300 is GitHub Copilot certified for the 2026 revision. We have summarized the differences between AI-300 and AB-900 in an article for developers and in-house SEs.
Read how to choose a Microsoft AI certification →We are organizing the context in which to understand the learning scope after the 2026 revision, such as Agent Mode, MCP, and CLI.
We have organized the 2026 revision of GitHub Copilot certification, new scopes such as CLI, Agent Mode, MCP, etc.
With a one-time purchase, app updates are free forever. GitHub and GitHub Copilot are trademarks of GitHub, Inc. (or its affiliated companies). This app is an independent test preparation app and is not officially approved or affiliated with it.