Comparison

WebMO Molecule Editor vs PrePA Path

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
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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

About

PrePA Path

Organize your pre-PA journey, track clinical hours, and prepare for interviews. This app helps you manage milestones, calculate progress towards program requirements, and format hours for seamless application uploads.

Highlights
  • Advanced hours logger
  • CASPA export
  • PA program database
  • MMI interview simulator
  • Peer-to-peer community
  • Stage-based checklists
Features
Read full description

Crush the CASPA application cycle and get accepted to your dream PA program. PrePA Path is the ultimate all-in-one organizer built for future Physician Assistants. From your first clinical hour to your final admissions interview, we take the anxiety out of the pre-PA journey. Stop tracking your future on messy spreadsheets. PrePA Path automatically organizes your milestones, calculates your progress toward specific program requirements, and instantly formats your hours for a seamless CASPA upload. ADVANCED HOURS LOGGER & CASPA EXPORT Quickly log your milestones across crucial categories: Patient Care Experience (PCE), Shadowing, Volunteering, Research, Leadership, and Work. One-Click CASPA Export: No more manual data entry nightmare! When application season arrives, instantly export your beautifully categorized hours into a structured, CASPA-ready format to copy-paste directly into your application. Cumulative Progress: Monitor your total hours dynamically against targeted schools and general benchmarks directly from your main dashboard. DYNAMIC PA PROGRAM DATABASE Search and explore ARC-PA accredited programs. View program lengths, required minimum overall and science GPAs, GRE requirements, and deadlines. Smart Risk Flags: Our database highlights verified requirements vs. estimated data with a clear "Est." tag, letting you know exactly when to double-check a prerequisite so you never waste an application fee. Progress Matching: Compare your cumulative PCE and GPA directly against each targeted school’s dynamic admission requirements. TIMED MMI INTERVIEW SIMULATOR Don’t get blindsided on interview day. Practice with a massive library of high-yield prompts broken down by type: Ethical Dilemmas, Role-Play, Teamwork, and Personal Reflection. Use the built-in tracking status to monitor how many prompts you've mastered. ANONYMOUS PEER-TO-PEER COMMUNITY Don't navigate the stressful road to PA school alone. Connect with a localized network of pre-PA students to exchange insight without the pressure. Filter by Intent: Easily sort through the feed using dedicated tags for Advice, Questions, Wins, and official Updates. Contextual Networking: See posts from peers matching your academic year or location so you can trade specific tips on local clinics, volunteer opportunities, and regional programs. STAGE-BASED CHECKLISTS Tailor the app to your exact status. Select your academic year (from Freshman to Post-Bacc) and your current journey status ("Just exploring," "Building hours," "Preparing to apply," or "Applying now") to unlock a custom checklist that outlines your next steps. By subscribing, you agree to our Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

WebMO Molecule Editor4 screens
PrePA Path4 screens

Verdict

The call

The clearest difference is rating: PrePA Path at 5.0 against WebMO Molecule Editor's 4.0. PrePA Path also leads on in-app purchases (none vs 2) and update cadence (every 3 days vs every 3 months). WebMO Molecule Editor's advantage is ratings volume (40 vs 1) and device support (3 vs 1). On price 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. PrePA Path asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PrePA Path 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 1, so its average is the more settled of the two.

UpkeepUpdate frequency

WebMO Molecule Editor ships an update every 3 months, PrePA Path every 3 days. The most recent releases landed on September 3, 2026 and September 9, 2026 respectively.

Scorecard7 real differences · 3 level
WebMO Molecule Editor versus PrePA Path: the parameters behind the verdict, then further details
ParameterWebMO Molecule EditorPrePA Path
PriceFreeFree
Rating4.0 (40 ratings)5.0 (1 ratings) — better
Positive reviews60.4% of reviews—
Number of ratings40 — better1
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better16.4
Further details — not scored
Size12 MB64 MB
Age rating4+4+
DeveloperWebMO, LLCSteven Schecter

Customer experience

WebMO Molecule Editor

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

PrePA Path

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

WebMO Molecule Editor

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

PrePA Path

No in-app purchases

Questions

Is WebMO Molecule Editor free?
WebMO Molecule Editor is free to download, with in-app purchases available.
Is PrePA Path free?
PrePA Path is free to download, with no in-app purchases.
Which has better reviews, WebMO Molecule Editor or PrePA Path?
PrePA Path is rated higher. WebMO Molecule Editor averages 4.0 out of 5 from 40 ratings, while PrePA Path averages 5.0 from 1 ratings.
Do WebMO Molecule Editor or PrePA Path have ads?
Neither WebMO Molecule Editor nor PrePA Path shows ads.
Which is updated more often, WebMO Molecule Editor or PrePA Path?
WebMO Molecule Editor ships an update every 3 months, and PrePA Path every 3 days. Most recently, WebMO Molecule Editor was updated on September 3, 2026 and PrePA Path on September 9, 2026.

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