Comparison

WebMO Molecule Editor vs Chemistry Model Kit

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

Head to head
About

WebMO Molecule Editor

Create and explore 3D molecular structures, visualize chemical properties, and access extensive chemical databases. This tool is ideal for students and educators needing on-the-go access to molecular information and computational chemistry resources.

Highlights
  • 3D molecular editor
  • Structure optimization
  • Orbital and symmetry visualization
  • Chemical database lookup
  • Spectra visualization
  • High-resolution image capture
  • Computational chemistry program integration
Features
Read full description

WebMO allows users to build and view molecules in 3-D, visualize orbitals and symmetry elements, lookup chemical information and properties from external databases, and access state-of-the-art computational chemistry programs. WebMO is recommended for students and faculty in high school, college, and graduate school who desire mobile access to molecular structures, information, and calculations. WebMO capabilities include: - Build molecules by drawing atoms and bonds in a 3-D molecular editor, or by speaking the name (e.g., “aspirin”) - Optimize structures using VSEPR theory or molecular mechanics - View Huckel molecular orbitals, electron density, and electrostatic potential - View molecular vibrations - View point group and symmetry elements of molecules - Lookup basic molecular information, including IUPAC and common names, stoichiometry, molar mass - Lookup chemical data from PubChem and ChemSpider - Lookup experimental and predicted molecular properties from external databases (NIST, Sigma-Aldrich) - Lookup IR, UV-VIS, NMR, and mass spectra from external databases (NIST, SDBS) - Capture high-resolution molecular images - Save and recall molecular structures locally - Export and import structures via email WebMO is also a front-end to WebMO servers (version 14 and higher): - Supports Gaussian, GAMESS, Molpro, MOPAC, NWChem, ORCA, PQS, PSI, Quantum Espresso, VASP, Q-Chem, and Tinker computational chemistry programs - Submit, monitor, and view calculations - View formatted tabular data extracted from output files, as well as raw output - Visualize geometry, partial charges, dipole moment, normal vibrational modes, molecular orbitals, and NMR/IR/UV-VIS spectra

About

Chemistry Model Kit

Features
Read full description

Use your smartphone and a Google Cardboard viewer to visualize the 3D shapes of molecules as predicted by the Valence Shell Electron Pair Repulsion (VSEPR) model. Click on the models to explore the 3D shapes and their corresponding 2D representations. This app was created to help you understand and remember the predicted electronic geometries, molecular geometries, and bond angles for molecules with up to 6 electron regions around a central atom. Immerse yourself, explore, and learn. This app was created and developed at Tennessee Tech University by chemistry instructor Janet Coonce and computer science student Evgeny Vasilyev, in collaboration with TTU’s iCUBE, with significant contributions from chemical engineering student Savannah Hall and graphic art student Brandon

Screenshots

WebMO Molecule Editor4 screens
Chemistry Model Kit4 screens

Verdict

The call

The clearest difference is in-app purchases: Chemistry Model Kit at none against WebMO Molecule Editor's 2. Chemistry Model Kit also leads on update cadence (every 4 days vs every 3 months) and iOS requirement (8.0 vs 12.0). On price, 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. WebMO Molecule Editor sells 2 one-off in-app purchases. Chemistry Model Kit asks for nothing beyond the download.

UpkeepUpdate frequency

WebMO Molecule Editor ships an update every 3 months, Chemistry Model Kit every 4 days. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
WebMO Molecule Editor versus Chemistry Model Kit: the parameters behind the verdict, then further details
ParameterWebMO Molecule EditorChemistry Model Kit
PriceFreeFree
Rating4.0 (40 ratings) — better—
Positive reviews60.4% of reviews—
Number of ratings40 — better—
Update frequencyEvery 3 monthsEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.08.0 — better
Further details — not scored
Size12 MB154 MB
Age rating4+4+
DeveloperWebMO, LLCCheryl Montgomery

In-app purchases

2 purchases

WebMO Molecule Editor

One-time2
  • WebMO Premium for paid usersFree
  • WebMO Premium$4.99
None

Chemistry Model Kit

No in-app purchases

Questions

Is WebMO Molecule Editor free?
WebMO Molecule Editor is free to download, with in-app purchases available.
Is Chemistry Model Kit free?
Chemistry Model Kit is free to download, with no in-app purchases.
Do WebMO Molecule Editor or Chemistry Model Kit have ads?
Neither WebMO Molecule Editor nor Chemistry Model Kit shows ads.
Which is updated more often, WebMO Molecule Editor or Chemistry Model Kit?
WebMO Molecule Editor ships an update every 3 months, and Chemistry Model Kit every 4 days. Most recently, WebMO Molecule Editor was updated on October 23, 2026 and Chemistry Model Kit on October 14, 2026.

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