Molecule vs WebMO Molecule Editor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Draw chemical structures
- Share structures
- Calculate MF, MW, Monoisotopic Mass
- Calculate Elemental Composition
- Interactive calculations
- Modern interface
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Simple modern chemical structure editor. Allow to draw and share chemical structure. MF, MW, Monoisotopic Mass and Elemental Composition calculated interactively during drawing.
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.
- 3D molecular editor
- Structure optimization
- Orbital and symmetry visualization
- Chemical database lookup
- Spectra visualization
- High-resolution image capture
- Computational chemistry program integration
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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
Verdict
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
Both are free to download. WebMO Molecule Editor sells 2 one-off in-app purchases. Molecule asks for nothing beyond the download.
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.
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.
| Parameter | Molecule | WebMO Molecule Editor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (10 ratings) | 4.0 (40 ratings) — better |
| Positive reviews | 76.2% of reviews — better | 60.4% of reviews |
| Number of ratings | 10 | 40 — better |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 9 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Kirill Blinov | WebMO, LLC |
Customer experience
Molecule
WebMO Molecule Editor
In-app purchases
Molecule
No in-app purchases
WebMO Molecule Editor
- WebMO Premium for paid usersFree
- WebMO Premium$4.99
Questions
Is Molecule free?
Is WebMO Molecule Editor free?
Which has better reviews, Molecule or WebMO Molecule Editor?
Do Molecule or WebMO Molecule Editor have ads?
Which is updated more often, Molecule or WebMO Molecule Editor?
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