Comparison

EMD PTE vs Periodic Table of Elements+

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

Periodic Table of Elements+

This educational app provides a compact Mendeleev's table with extensive chemical element data. It allows users to create molecular formulas, calculate their mass, and access detailed Wikipedia information for each element. Designed for students and chemistry enthusiasts, it offers VoiceOver accessibility and efficient space utilization.

Highlights
  • Mendeleev's table reference
  • Molecular formula composer
  • Molecular mass computation
  • VoiceOver accessibility
  • Links to Wikipedia pages
  • Copyable element information
Features
Read full description

A quick Mendeleïev's table using a little space. Accessible with VoiceOver, it is a useful reference for students and people interested in chemistry. It reports many data related to chemical elements, that you can select and copy. With this app you can create the molecular formula by long pressing the symbols and compute its mass. The app also includes links to the Wikipedia pages of the elements, for extensive information. - Composer for molecular formulas - Computes the molecular mass - Accessible with VoiceOver - Optimized to use a small space - Includes many elements’properties - Allows to copy the element’s information - Link to wikipedia pages for more information

Screenshots

EMD PTE4 screens
Periodic Table of Elements+4 screens

Verdict

The call

The clearest difference is ads: EMD PTE at none against Periodic Table of Elements+'s shown. EMD PTE also leads on review sentiment (90% vs 67%) and monetization model (free vs ad-supported). On price, rating, ratings volume and update cadence 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for EMD PTE against 4.7 for Periodic Table of Elements+. Both are backed by a comparable volume of ratings — 124 and 60 respectively. Written reviews are what separate them: 90% of EMD PTE's written reviews are positive against 67% of Periodic Table of Elements+'s.

UpkeepUpdate frequency

EMD PTE ships an update every 8 months, Periodic Table of Elements+ every 7 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
EMD PTE versus Periodic Table of Elements+: the parameters behind the verdict, then further details
ParameterEMD PTEPeriodic Table of Elements+
PriceFreeFree
Rating4.6 (124 ratings)4.7 (60 ratings) — better
Positive reviews90.5% of reviews — better66.7% of reviews
Number of ratings124 — better60
Update frequencyEvery 8 monthsEvery 7 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size18 MB38 MB
Age rating4+4+
DeveloperMerck KGaA (Darmstadt, Germany)Sonya Marcarelli

Customer experience

EMD PTE

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

Periodic Table of Elements+

All ratings60 ratings
Positive91.7%
Neutral3.3%
Negative5.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

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

Periodic Table of Elements+

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

EMD PTE

No in-app purchases

None

Periodic Table of Elements+

No in-app purchases

Questions

Is EMD PTE free?
EMD PTE is free to download, with no in-app purchases.
Is Periodic Table of Elements+ free?
Periodic Table of Elements+ is free to download, with no in-app purchases.
Which has better reviews, EMD PTE or Periodic Table of Elements+?
Periodic Table of Elements+ is rated higher. EMD PTE averages 4.6 out of 5 from 124 ratings, while Periodic Table of Elements+ averages 4.7 from 60 ratings.
Do EMD PTE or Periodic Table of Elements+ have ads?
Periodic Table of Elements+ shows ads; EMD PTE does not.
Which is updated more often, EMD PTE or Periodic Table of Elements+?
EMD PTE ships an update every 8 months, and Periodic Table of Elements+ every 7 months. Most recently, EMD PTE was updated on November 6, 2026 and Periodic Table of Elements+ on November 3, 2026.

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