Periora

Elements, Chemistry & Quiz

Free · In-App Purchases · Designed for iPad. Not verified for macOS.

All 118 elements, IUPAC-accurate, fully offline. Animated electron shells, Arabic & English, and a quiz mode that makes the table stick. Periora is the periodic table you'll actually enjoy opening. Every one of the 118 elements, with data compiled from IUPAC and NIST — atomic weights, electron configurations, physical properties — bundled offline, so it works in class, in the lab, or on a plane. No account. No ads. Ever. BUILT FOR STUDY • Quiz mode: Symbol → Name and Name → Symbol with instant feedback • Search that understands Arabic and English — حديد, Iron, Fe, or 26 all find the same element • Category filters: pick out the halogens or lanthanides at a glance BEAUTIFUL AND ALIVE • Animated electron shells for every element • A true iPad layout: the whole table at a glance • Full dark mode and a design that respects your language — complete right-to-left Arabic ACCURATE BY DESIGN • Values from IUPAC (2021 standard atomic weights) and NIST • Every property traceable to its source PERIORA PRO (optional one-time purchase) • Unlimited quiz sessions — the reference itself is free, forever • No subscription, ever Made for students, teachers, and the chemistry-curious.

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The developer, hamam alabdulla, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Provider
    • hamam alabdulla
    Size
    • 3.4 MB
    Category
    • Education
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English and Arabic
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © Hamam A. Alabdulla
  • Developer Website
  • Privacy Policy

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