WebMO Molecule Editor vs Perse Visualizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Perse Visualizer
Visualize protein structures on your mobile device. Search the protein data bank by name or ID and display them in various styles like cartoon or ball and stick. Ideal for biology students and researchers.
- Protein visualization
- Search by name or ID
- Multiple display styles
- Access to protein data bank
- Educational tool
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An easy to use mobile protein visualizer. Search for any protein from the RCSB protein data bank by name or ID. Perse can visualize proteins in cartoon, line, sphere and ball and stick style. Find this app helpful in the biology classroom or lab!
Screenshots
Verdict
The clearest difference is rating: Perse Visualizer at 5.0 against WebMO Molecule Editor's 4.0. Perse Visualizer also leads on in-app purchases (none vs 2). WebMO Molecule Editor's advantage is ads (none vs shown) and review sentiment (60% vs 50%). On price, update cadence, 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
Both are free to download. WebMO Molecule Editor sells 2 one-off in-app purchases. Perse Visualizer asks for nothing beyond the download.
Perse Visualizer holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: WebMO Molecule Editor has 40 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 60% of WebMO Molecule Editor's written reviews are positive against 50% of Perse Visualizer's, so the app with the better star average is not the one people write more warmly about.
WebMO Molecule Editor ships an update every 3 months, Perse Visualizer every 2 months. The most recent releases landed on September 3, 2026 and September 9, 2026 respectively.
| Parameter | WebMO Molecule Editor | Perse Visualizer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (40 ratings) | 5.0 (7 ratings) — better |
| Positive reviews | 60.4% of reviews — better | 50.0% of reviews |
| Number of ratings | 40 — better | 7 |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 12 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | WebMO, LLC | Dylan Riffle |
Customer experience
WebMO Molecule Editor
Perse Visualizer
In-app purchases
WebMO Molecule Editor
- WebMO Premium for paid usersFree
- WebMO Premium$4.99
Perse Visualizer
No in-app purchases
Questions
Is WebMO Molecule Editor free?
Is Perse Visualizer free?
Which has better reviews, WebMO Molecule Editor or Perse Visualizer?
Do WebMO Molecule Editor or Perse Visualizer have ads?
Which is updated more often, WebMO Molecule Editor or Perse Visualizer?
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