Comparison

CMM | Molar Mass Calculator vs Elementium

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

Head to head
About

CMM | Molar Mass Calculator

Calculate the molar mass of chemical compounds with ease. This tool is essential for chemistry students and professionals, offering a periodic table keyboard for quick formula entry and the ability to save frequently used formulas.

Highlights
  • Molar mass calculation
  • Periodic table keyboard
  • Save recurring formulas
  • Formula entry
  • Chemistry education tool
Features
Read full description

CMM! A must have for chemists and chemistry students! This application calculate for you the molar mass of a chemical compound. You also get a periodic table keyboard. Just enter your formula in the first text field and click the "Calculate" Here are some examples: CH3COOH (NH4)3PO4 CuSO4.5H2O C6H12O6 You can also save your recurring formulas in a dedicated page.

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

CMM | Molar Mass Calculator4 screens
Elementium4 screens

Verdict

The call

The clearest difference is update cadence: Elementium at every 3 weeks against CMM | Molar Mass Calculator's every 5 months. CMM | Molar Mass Calculator's advantage is review sentiment (84% vs 75%) and iOS requirement (9.3 vs 16.1). On price, rating, ratings volume and ads 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. CMM | Molar Mass Calculator sells 5 one-off in-app purchases and Elementium sells 9 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

CMM | Molar Mass Calculator holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 207 and 603 respectively. Written reviews point the same way: 84% of CMM | Molar Mass Calculator's written reviews are positive against 75% of Elementium's.

UpkeepUpdate frequency

CMM | Molar Mass Calculator ships an update every 5 months, Elementium every 3 weeks. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
CMM | Molar Mass Calculator versus Elementium: the parameters behind the verdict, then further details
ParameterCMM | Molar Mass CalculatorElementium
PriceFreeFree
Rating4.8 (207 ratings) — better4.6 (603 ratings)
Positive reviews84.3% of reviews — better75.0% of reviews
Number of ratings207603 — better
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, Apple TV
Requires iOS9.3 — better16.1
Further details — not scored
Size14 MB752 MB
Age rating4+4+
DeveloperAlexandre PerezSamuel Spencer

Customer experience

CMM | Molar Mass Calculator

All ratings202 ratings
Positive95.5%
Neutral1.5%
Negative3.0%
Written reviews51 reviews
Positive84.3%
Neutral3.9%
Negative11.8%

Elementium

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

User reviews

CMM | Molar Mass Calculator

From 207 App Store ratings

What we love

  • 🚀 Saves a lot of time
  • 👍 Easy to use
  • ✅ Accurate calculations
  • 💡 Great for chemistry students
  • 💯 Versatile for various calculations

Room to improve

  • 🐛 Does not recognize lowercase elements
  • 🐛 Requires constant capitalization
  • 🐛 Keyboard covers input on older phones
  • 🐛 Number 7 registers double press
  • 🐛 Missing mono isotopic mass calculation

Elementium

From 603 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

CMM | Molar Mass Calculator

Reported bugs

6 issues
  • Does not recognize Florine
  • Number 7 registers a double press (77)
  • Keyboard covers up mass on iPhone 4s
  • Element masses for key elements are incorrect
  • App is not up to date
Show 1 more
  • Name does not match acronym

Requested features

8 requests
  • Ability to name elements
  • Type in chemical names (e.g., 'oxalate') to get percentages
  • Molarity calculator inclusion
  • Actual periodic table to tap
  • Recognition system for stoichiometrically correct molecules
Show 3 more
  • Default text entry in capitals
  • Integrated calculator update
  • Support for languages other than English

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

5 purchases

CMM | Molar Mass Calculator

One-time5
  • Donation$0.99
  • Donation$2.99
  • Donation$4.99
Show 2 more
  • Donation$9.99
  • Donation$19.99
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 CMM | Molar Mass Calculator free?
CMM | Molar Mass Calculator is free to download, with in-app purchases available.
Is Elementium free?
Elementium is free to download, with in-app purchases available.
Which has better reviews, CMM | Molar Mass Calculator or Elementium?
CMM | Molar Mass Calculator is rated higher. CMM | Molar Mass Calculator averages 4.8 out of 5 from 207 ratings, while Elementium averages 4.6 from 603 ratings.
Do CMM | Molar Mass Calculator or Elementium have ads?
Neither CMM | Molar Mass Calculator nor Elementium shows ads.
Which is updated more often, CMM | Molar Mass Calculator or Elementium?
CMM | Molar Mass Calculator ships an update every 5 months, and Elementium every 3 weeks. Most recently, CMM | Molar Mass Calculator was updated on November 1, 2026 and Elementium on November 6, 2026.

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