The periodic table in digital form, interactive and at a glance – entirely free of charge.
Immediately find any imaginable information about an element, calculate molar masses of any compounds you like, facilitate your overview with infographics, compare atomic radii, masses, electronegativities, and much more!
After over a million downloads, now with extended functions, improved features and the visual image of our new design (inspired by the colorful and multifaceted shapes seen under a microscope, the logo and colors now follow the concept of a vibrant science and technology company) – lively and dynamic.
Based on the idea of a lively science and technology company and inspired by the colorful and multifaceted shapes seen under a microscope, the new corporate design shows itself in expressive colors and shapes of a natural scientific impression. These are also represented in our new company logo.
Our PSE App is the ultimate tool for every friend of chemistry - whether pupil or teacher, student or professor, amateur or expert, hobbyist or technician. Our app is a must-have of digital periodic tables. Get informed with our mobile reference work, any time, with ease, offline and in detail.
Thanks to the many hours of work, experiences, reviews and user feedbacks on our first PSE App (with over a million downloads!) we are now able to provide the new, improved and more appealing version of our PSE App.
Even more features. Even more improvements. Even more user friendliness.
Download now free of charge and start experimenting.
• All important information about the elements
Atomic number, valence electrons, oxidation state, electronegativity according to Allred-Rochow and Pauling, atomic mass, boiling point, melting point, atomic radius, density, history, discoverer, classification, crystalline structure type, electron configuration, basic state, ionization energy, isotopic composition, state of matter, hardness according to Mohs, oxidation numbers, percentage of mass in Earth's crust, year of discovery, half-life, and much more
• Visualized element properties
Atomic radius, atomic radius graphic, electronegativity (according to Allred-Rochow and Pauling), ionization energy, relative atomic mass, state of matter, ranking list of properties, discovery, classifications
• Molar mass calculator
Simple entry field for chemical formulas. Calculate molar mass simply and quickly
• Offline use
No Internet needed. All contents in the app.
• Economical handling of access rights
• Variety of languages
German, English, French, Spanish
• Interactive operating system
Smart operating elements and numerous selection options
Questions? Feedback? Suggestions? – You can reach us at firstname.lastname@example.org
iOS optimization - Stability and performance update to new operating systems
Ratings and Reviews
Keep it a clean reference UX without fluff, please
So we finally have the names in place at the end of period 7, which has been much needed ever since they were officially adopted months ago, but then you go and add an eyesore with that curiosity tile. Put it somewhere else in the app if you must. Just get it off of the table itself. It has no place being there. I originally picked this app for being a clean aesthetics reference. I don’t want it to be clogged up with outreach fluff like so many other periodic table apps.
The app is great. Though only thing I'd like is the ability to type in values on the sliders instead of having to use the +/- sighs to change the values. But over all it met all of my academic needs and is overall a great resource.
This app is too good to be free! The layout is clean and concise, and the information is great! I strongly recommend this app.
(Note: in the app's settings, you can change the temperature unit to Celsius if you'd like.)
- Merck KGaA (Darmstadt, Germany)
- 10.5 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, German, Spanish
- Age Rating
- Rated 4+
- © EMD Chemicals Inc.
With Family Sharing set up, up to six family members can use this app.