Extra Class
Extra Class Summary
Extra Class is a free, with in-app purchases Android app in Simulation by Phạm Hải Nam. Released in May 2025 (1 year ago). Store last updated May 19, 2025
SDK intelligence: AppGoblin detected 2 development tools(e.g. Google),and 1 analytics: product integrated into Extra Class. View full SDK list →
Data tracking: The app's network data flows (API traffic to/from the app and its SDKs) were last crawled on Jan 26, 2026.
Extra Class SDKs Summary
Extra Class was last scanned for SDKs on 2026-08-08. Below is the overview of third-party companies detected in the app. The full list of SDKs, permissions and unknowns is available here.
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App Description
Tutoring center management game, upgrade classes, hire teachers, optimize income
“Extra Class” is an idle-management game with the theme of running a multi-story tutoring center. You will transform into a manager, build and optimize each “classroom” on each floor, hire teachers-managers, upgrade equipment to increase revenue.
1. Main interface & core mechanism
- Each floor represents a classroom, with a subject symbol and the corresponding “Level” figure.
- Next to each floor there are numbered elevator doors, used to speed up the movement of students between classes.
- The top bar shows earnings per second (cash/s), cash and diamond balance.
2. Upgrade & automate
- Click on each floor to open the “Overview” or “Total Extraction” panel: see the speed of understanding the lesson, moving speed, capacity, number of students…
- Upgrade x1/x10/x50 or Max to increase the indexes: directly increase the money earned per second.
- Hire a manager (Junior/Senior) to automatically activate and reduce the upgrade cost for a certain period of time.
3. Long-term strategy
- Prioritize upgrading floors with high “understand speed” and “transport capacity” to boost throughput.
- Arrange the upgrade order: elevator → highest ROI layer → manager for “hot” layers.
Overall, “Extra Class” requires you to balance upgrading, automating an experience that is both entertaining, satisfying “blind” to data and optimizing business efficiency.

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