Comparison

Molecule vs WebMO Molecule Editor

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

Head to head
About

Molecule

This app allows users to create and share chemical structures with ease. It calculates molecular formula, weight, and elemental composition in real-time as you draw. Ideal for students and researchers needing a simple tool for molecular visualization.

Highlights
  • Draw chemical structures
  • Share structures
  • Calculate MF, MW, Monoisotopic Mass
  • Calculate Elemental Composition
  • Interactive calculations
  • Modern interface
Features
Read full description

Simple modern chemical structure editor. Allow to draw and share chemical structure. MF, MW, Monoisotopic Mass and Elemental Composition calculated interactively during drawing.

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

Screenshots

Molecule4 screens
WebMO Molecule Editor4 screens

Verdict

The call

The clearest difference is in-app purchases: Molecule at none against WebMO Molecule Editor's 2. Molecule also leads on review sentiment (76% vs 60%) and iOS requirement (7.0 vs 12.0). WebMO Molecule Editor's advantage is ratings volume (40 vs 10). On price, rating, update cadence 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. WebMO Molecule Editor sells 2 one-off in-app purchases. Molecule asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.0 for Molecule against 4.0 for WebMO Molecule Editor. Both are backed by a comparable volume of ratings — 10 and 40 respectively. Written reviews are what separate them: 76% of Molecule's written reviews are positive against 60% of WebMO Molecule Editor's.

UpkeepUpdate frequency

Molecule ships an update every 4 months, WebMO Molecule Editor every 3 months. The most recent releases landed on August 30, 2026 and September 3, 2026 respectively.

Scorecard5 real differences · 5 level
Molecule versus WebMO Molecule Editor: the parameters behind the verdict, then further details
ParameterMoleculeWebMO Molecule Editor
PriceFreeFree
Rating4.0 (10 ratings)4.0 (40 ratings) — better
Positive reviews76.2% of reviews — better60.4% of reviews
Number of ratings1040 — better
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better12.0
Further details — not scored
Size9 MB12 MB
Age rating4+4+
DeveloperKirill BlinovWebMO, LLC

Customer experience

Molecule

All ratings10 ratings
Positive70.0%
Neutral10.0%
Negative20.0%
Written reviews21 reviews
Positive76.2%
Neutral9.5%
Negative14.3%

WebMO Molecule Editor

All ratings40 ratings
Positive75.0%
Neutral5.0%
Negative20.0%
Written reviews53 reviews
Positive60.4%
Neutral9.4%
Negative30.2%

In-app purchases

None

Molecule

No in-app purchases

2 purchases

WebMO Molecule Editor

One-time2
  • WebMO Premium for paid usersFree
  • WebMO Premium$4.99

Questions

Is Molecule free?
Molecule is free to download, with no in-app purchases.
Is WebMO Molecule Editor free?
WebMO Molecule Editor is free to download, with in-app purchases available.
Which has better reviews, Molecule or WebMO Molecule Editor?
WebMO Molecule Editor is rated higher. Molecule averages 4.0 out of 5 from 10 ratings, while WebMO Molecule Editor averages 4.0 from 40 ratings.
Do Molecule or WebMO Molecule Editor have ads?
Neither Molecule nor WebMO Molecule Editor shows ads.
Which is updated more often, Molecule or WebMO Molecule Editor?
Molecule ships an update every 4 months, and WebMO Molecule Editor every 3 months. Most recently, Molecule was updated on August 30, 2026 and WebMO Molecule Editor on September 3, 2026.

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