Comparison

Elementium 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

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.

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

Elementium4 screens
Periodic Table of Elements+4 screens

Verdict

The call

The clearest difference is in-app purchases: Periodic Table of Elements+ at none against Elementium's 9. Elementium's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 7 months). On price, rating, device support and iOS requirement 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. Periodic Table of Elements+ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Elementium against 4.7 for Periodic Table of Elements+. That said, the two scores are not equally well evidenced: Elementium has 576 ratings behind it against 54, so its average is the more settled of the two. Written reviews are what separate them: 75% of Elementium's written reviews are positive against 67% of Periodic Table of Elements+'s.

UpkeepUpdate frequency

Elementium ships an update every 3 weeks, Periodic Table of Elements+ every 7 months. The most recent releases landed on September 19, 2026 and September 17, 2026 respectively.

Scorecard6 real differences · 4 level
Elementium versus Periodic Table of Elements+: the parameters behind the verdict, then further details
ParameterElementiumPeriodic Table of Elements+
PriceFreeFree
Rating4.6 (576 ratings)4.7 (54 ratings) — better
Positive reviews75.0% of reviews — better66.7% of reviews
Number of ratings576 — better54
Update frequencyEvery 3 weeks — betterEvery 7 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFreemiumAd-supported — better
DevicesiPhone, iPad, Apple TViPhone, iPad, iPod
Requires iOS16.115.0 — better
Further details — not scored
Size752 MB38 MB
Age rating4+4+
DeveloperSamuel SpencerSonya Marcarelli

Customer experience

Elementium

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

Periodic Table of Elements+

All ratings54 ratings
Positive92.6%
Neutral1.9%
Negative5.6%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

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

Periodic Table of Elements+

Not enough reviews yet to summarise bugs or requests.

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
None

Periodic Table of Elements+

No in-app purchases

Questions

Is Elementium free?
Elementium is free to download, with in-app purchases available.
Is Periodic Table of Elements+ free?
Periodic Table of Elements+ is free to download, with no in-app purchases.
Which has better reviews, Elementium or Periodic Table of Elements+?
Periodic Table of Elements+ is rated higher. Elementium averages 4.6 out of 5 from 576 ratings, while Periodic Table of Elements+ averages 4.7 from 54 ratings.
Do Elementium or Periodic Table of Elements+ have ads?
Periodic Table of Elements+ shows ads; Elementium does not.
Which is updated more often, Elementium or Periodic Table of Elements+?
Elementium ships an update every 3 weeks, and Periodic Table of Elements+ every 7 months. Most recently, Elementium was updated on September 19, 2026 and Periodic Table of Elements+ on September 17, 2026.

Other comparisons