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App: Periodica — offline periodic table for learning
Bundle ID: com.tuongh.periodica

What Periodica does

  • Browse all 118 elements with localized names (English, Vietnamese, Japanese)
  • Color the table by category, block, or phase
  • Compare elements and view electron shells
  • Practice with quizzes, flashcards, and chemical group lessons

Common questions

Does the app need the internet?
No. Content ships inside the app. Preferences and learning stats stay on device.

How do I change language?
Open the Settings tab in the app, or change the iPhone language / per-app language in iOS Settings.

I found a wrong element name or fact.
Please open a GitHub Issue with the atomic number and the correction. We especially welcome review of Vietnamese element names.

How do I reset learning stats?
In the Learn tab, use the delete learning records action (if available in your version).

Contact

For bugs, feedback, or App Store review questions:

Developer: Nguyen Hoang Tuong

Privacy

We do not collect personal data on servers. See the Privacy Policy.