A simple periodic table for macOS
Simply Periodic
Reference data for all 118 elements, a click away in a window, in your menu bar, and on your desktop. Available on the Mac App Store.
Features
Highlights
All 118 elements, with full reference data
Colour the table by melting point, density, crystal structure, and more
Pick the properties you want at a glance, and drag them where you want them
Every element's full detail, a click from its tile
A periodic table in your menu bar
Desktop widgets for the whole table or a single element you choose
Support
Need help?
Questions, bug reports, and feature ideas are always welcome. Email [email protected] and include your macOS version and a short description of what happened.Reinstalling or using another Mac
Open the App Store, click your name in the lower left corner, and find Simply Periodic in your purchases. It downloads again at no extra cost on any Mac signed in with the same Apple Account.Refunds
Refunds are handled by Apple through reportaproblem.apple.com.Requirements
macOS 12 Monterey or later. Desktop widgets require macOS 15.5 or later.
Privacy Policy
No tracking
Effective 9/15/2026Simply Periodic does not collect, store, or share any personal information. The app has no accounts, no analytics, no advertising, and no third-party tracking tools.Crash reports
If you have turned on Share with App Developers in macOS (System Settings, then Privacy & Security, then Analytics & Improvements), Apple may share anonymous crash reports with the developer. These reports help fix bugs and do not identify you. You can turn this setting off at any time, and Apple's handling of this data is covered by Apple's own privacy policy.Children
Simply Periodic does not knowingly collect information from anyone, including children under 13.Changes to this policy
If this policy changes, the updated version will be posted here with a new effective date.Contact
Questions about this policy can be sent to [email protected].
Mac App Store
Get the app
Simply Periodic is available on the Mac App Store for $0.99. One purchase, no subscription.