Comparison

EMD PTE vs Elementium

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

EMD PTE

This comprehensive mobile reference work provides detailed information on all chemical elements. It features a molar mass calculator, interactive visualizations, and offline access, making it an indispensable tool for students, educators, and chemistry enthusiasts.

Highlights
  • Detailed element information
  • Visualized element properties
  • Molar mass calculator
  • Offline access
  • Multi-language support
  • Element comparison function
Features
Read full description

The EMD PSE App is the ultimate tool for every friend of chemistry – whether pupil or teacher, university student or professor, amateur or expert, hobbyist or technician. Our app is the must-have of digital periodic tables. Get informed with our mobile reference work, any time, with ease, offline and in detail, in the usual straightforward, user-friendly way. Download now free of charge and start experimenting.  New features in the latest version: - Additional translations: Chinese (simplified), Portuguese, and Russian. - Users can now change the language directly in the app - New function for direct comparison of two elements - A separate keypad for the molar mass calculator makes formulas easier to enter - Headline and breadcrumbs added for improved orientation - Filtering option and optimized usability for the ranking list of properties - Update of element master data - Update to current operating system versions - Improved touch support for diagrams - Museum mode All existing features: - 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, ionization energy, isotopic composition, state of matter, hardness according to Mohs, basic state, 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 one app.  - Streamlined handling of access rights. - Interactive operation: smart operating elements and numerous selection options. - Variety of languages: German, English, French and Spanish.

About

Elementium

Access comprehensive information on every element of the periodic table. Explore detailed data, visualize trends, and utilize a built-in solubility calculator. Perfect for students and professionals needing quick, accurate chemical data.

Highlights
  • Detailed element information
  • Interactive periodic table
  • Dynamic filtering and trend visualization
  • Solubility calculator
  • Element image library
  • Bohr model visualizations
  • Home screen widgets
Features
Read full description

The premiere periodic table app for iPhone, iPad, and Apple TV. Quickly reference any element and all the information you need. Search for elements by on classification, phase, orbital, mass, or number. Dynamic filters help you understand periodic trends, like electronegativity, at a glance. Dive even deeper to get standard, frequently-used data points such as mass, electronegativity, radius, radioactivity, electron configuration, and more. LEARN Each element prominently features: • Symbol, name, and number • Atomic mass • Electronegativity • Electron configuration • Atomic radius • Melting and boiling points • Year of discovery • State at STP • Radioactivity Elements are also accompanied by discussions on its uses, discovery, and more. You can quickly find more information and publications about each element via links to Wikipedia, Science Direct®, and the American Chemical Society®. EXPLORE The periodic table is laid out in a clear, concise manner that adapts to the size of your screen. No more squinting at blurry images of the periodic table from web searches. Beautiful color-coding helps you quickly distinguish element classifications, phases at STP, electronegativity, and atomic radius. Trends and filtering help students who are learning chemistry to visualize patterns. SOLUBILITY CALCUALTOR A built in solubility calculator* answers all your, "is this soluble in that", questions. Just specify a solvent and a solute to check their compatibility. A solubility lookup table is also available for cross-referencing multiple combinations. VISUALIZATIONS See beautiful depictions of elements from raw to processed, and in other forms. The extensive library of images help you understand what your lab samples should look like, or may be helpful to students learning about chemistry.* SEARCH Search for elements by name, symbol, mass, or number from within Elementium™ or via Spotlight. Results are shown directly on the periodic table. Need faster access to element information? Search directly from Spotlight on the lock screen or home screen of your device. BOHR MODELS Animated Bohr models for each element help visualize how electrons are oriented around the nucleus.* WRITE & REPORT Academics and students writing reports and using data frequently in the classroom or the lab can simply tap on an aspect of an element to export its information.* HOME SCREEN WIDGETS Add the Periodic Table widget to your home screen for quick and easy reference to the Periodic Table. Or, try out the "random element" widget which is useful for students. ADDITIONAL NICE THINGS • Custom app icons • Set temperature and atomic radius to your preferred units • Search Spotlight for elements • Thoughtfully developed with accessibility in mind • A subscription is totally optional • No account required • Privacy focused (no tracking, no data collection) ------- ION Subscription Notice Subscription prices vary by duration and may vary by location. Subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled within 24-hours before the end of the current period. You can cancel anytime with your iTunes account settings. Manage your subscriptions in Account Settings after purchase. Privacy Policy: https://spencer-software.com/elementium/privacy Terms of Service: https://spencer-software.com/elementium/tos ------- *Requires in-app purchase. Elementium™ is a trademark of Samuel Spencer.

Screenshots

EMD PTE4 screens
Elementium4 screens

Verdict

The call

The clearest difference is in-app purchases: EMD PTE at none against Elementium's 9. EMD PTE also leads on review sentiment (90% vs 75%) and iOS requirement (12.0 vs 16.1). Elementium's advantage is update cadence (every 3 weeks vs every 8 months) and ratings volume (576 vs 121). On price, rating, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Elementium sells 9 in-app purchases, starting at $1.99 per month. EMD PTE asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for EMD PTE against 4.6 for Elementium. Both are backed by a comparable volume of ratings — 121 and 576 respectively. Written reviews are what separate them: 90% of EMD PTE's written reviews are positive against 75% of Elementium's.

UpkeepUpdate frequency

EMD PTE ships an update every 8 months, Elementium every 3 weeks. Both last shipped on September 29, 2026.

Scorecard6 real differences · 4 level
EMD PTE versus Elementium: the parameters behind the verdict, then further details
ParameterEMD PTEElementium
PriceFreeFree
Rating4.7 (121 ratings) — better4.6 (576 ratings)
Positive reviews90.5% of reviews — better75.0% of reviews
Number of ratings121576 — better
Update frequencyEvery 8 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, Apple TV
Requires iOS12.0 — better16.1
Further details — not scored
Size18 MB752 MB
Age rating4+4+
DeveloperMerck KGaA (Darmstadt, Germany)Samuel Spencer

Customer experience

EMD PTE

All ratings121 ratings
Positive90.9%
Neutral0.8%
Negative8.3%
Written reviews126 reviews
Positive90.5%
Neutral4.0%
Negative5.6%

Elementium

All ratings576 ratings
Positive91.5%
Neutral3.3%
Negative5.2%
Written reviews32 reviews
Positive75.0%
Neutral6.3%
Negative18.8%

User reviews

EMD PTE

From 121 App Store ratings

What we love

  • 👍 Excellent user interface
  • 🚀 Intuitive and easy to use
  • 💡 Comprehensive information on elements
  • 🔍 Detailed element properties and data
  • 🎨 Visually appealing design

Room to improve

  • 🐛 Occasional crashes or freezes
  • 🔍 Missing some advanced features
  • 🔧 Needs optimization for newer devices
  • 🔢 Inconsistent unit display (Fahrenheit vs Celsius)

Elementium

From 576 App Store ratings

What we love

  • 👍 User-friendly and intuitive interface
  • 📚 Comprehensive element information and data
  • 🎨 Beautiful, clean, and visually appealing design
  • 🔗 Helpful Wikipedia and external resource links
  • 📖 Excellent for educational purposes and studying

Room to improve

  • 💰 Expensive subscription model for premium features
  • 🔐 Paywall blocking key features and element images
  • 📺 Intrusive ads and purchase prompts on startup
  • 🎨 Poor color contrast on metalloid background text
  • 📱 Crashes on older devices (iPhone 6G iPod Touch, iPhone XS Max)

Bugs and requests

EMD PTE

Reported bugs

2 issues
  • Incorrect atomic radius data for some elements
  • Glitches when switching between screens

Requested features

4 requests
  • Add search functionality
  • Provide more customization options
  • Include isotope and mass data
  • Improve navigation between elements

Elementium

Reported bugs

5 issues
  • App crashes on startup and when tapping elements
  • Crashes on older iOS devices and iPod Touch
  • Molar mass not visible in iPhone landscape orientation
  • Intrusive purchase prompt that's difficult to dismiss
  • Rating request spam appearing too early in user experience

Requested features

5 requests
  • Element images and visual representations
  • One-time purchase option instead of subscription
  • Zoom out to view entire periodic table at once
  • Better display of molar mass on iPhone in landscape mode
  • More detailed information and content

In-app purchases

None

EMD PTE

No in-app purchases

9 purchases

Elementium

Subscriptions4
  • ION, 1 month1 Month trial$1.991 Month
  • ION, 3 Months3 Days trial$3.993 Months
  • ION, 6 months$5.996 Months
Show 1 more
  • ION, 1 year$9.991 Year
One-time5
  • Export Data$0.99
  • Bohr Models$1.99
  • Advanced Sorting$2.99
Show 2 more
  • Visual Elements$3.99
  • Advanced Tools$4.99

Questions

Is EMD PTE free?
EMD PTE is free to download, with no in-app purchases.
Is Elementium free?
Elementium is free to download, with in-app purchases available.
Which has better reviews, EMD PTE or Elementium?
EMD PTE is rated higher. EMD PTE averages 4.7 out of 5 from 121 ratings, while Elementium averages 4.6 from 576 ratings.
Do EMD PTE or Elementium have ads?
Neither EMD PTE nor Elementium shows ads.
Which is updated more often, EMD PTE or Elementium?
EMD PTE ships an update every 8 months, and Elementium every 3 weeks. Most recently, EMD PTE was updated on September 29, 2026 and Elementium on September 29, 2026.

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