Comparison

WebMO Molecule Editor vs IUDM

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

IUDM

This app serves as a central hub for Indiana University Dance Marathon participants. It provides access to important announcements, event schedules, fundraising tools, and information about the organization's mission. It complements the DonorDrive account for registered users.

Highlights
  • Important announcements
  • Upcoming event schedules
  • Fundraising resources
  • Learn about IUDM's mission
  • Connect with other participants
Features
Read full description

The official Indiana University Dance Marathon (IUDM) app. Committee members, chairs, and external dancers can stay connected with everything IUDM in one place. View important announcements and upcoming events, find fundraising resources, learn more about IUDM's mission, and more. The IUDM app is designed to complement your DonorDrive account, not replace it. Before signing in to the app, all participants must first register for IUDM through DonorDrive at iudm.org/register. Indiana University Dance Marathon (IUDM) is Indiana University's largest student organization and the second-largest student-run philanthropy in the world. Since 1991, IUDM has raised more than $59 million to support Riley Hospital for Children and the IU School of Medicine Wells Center for Pediatric Research. Each year, nearly 3,000 students come together for a 36-hour Dance Marathon, united For The Kids.

Screenshots

WebMO Molecule Editor4 screens
IUDM4 screens

Verdict

The call

The clearest difference is rating: IUDM at 5.0 against WebMO Molecule Editor's 4.0. IUDM also leads on in-app purchases (none vs 2) and update cadence (every 6 days vs every 3 months). WebMO Molecule Editor's advantage is ratings volume (40 vs 3) and iOS requirement (12.0 vs 15.0). 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. IUDM asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

IUDM 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 3, so its average is the more settled of the two.

UpkeepUpdate frequency

WebMO Molecule Editor ships an update every 3 months, IUDM every 6 days. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

Scorecard6 real differences · 4 level
WebMO Molecule Editor versus IUDM: the parameters behind the verdict, then further details
ParameterWebMO Molecule EditorIUDM
PriceFreeFree
Rating4.0 (40 ratings)5.0 (3 ratings) — better
Positive reviews60.4% of reviews—
Number of ratings40 — better3
Update frequencyEvery 3 monthsEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size12 MB21 MB
Age rating4+4+
DeveloperWebMO, LLCIndiana University Dance Marathon, LLC

Customer experience

WebMO Molecule Editor

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

IUDM

All ratings3 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

IUDM

No in-app purchases

Questions

Is WebMO Molecule Editor free?
WebMO Molecule Editor is free to download, with in-app purchases available.
Is IUDM free?
IUDM is free to download, with no in-app purchases.
Which has better reviews, WebMO Molecule Editor or IUDM?
IUDM is rated higher. WebMO Molecule Editor averages 4.0 out of 5 from 40 ratings, while IUDM averages 5.0 from 3 ratings.
Do WebMO Molecule Editor or IUDM have ads?
Neither WebMO Molecule Editor nor IUDM shows ads.
Which is updated more often, WebMO Molecule Editor or IUDM?
WebMO Molecule Editor ships an update every 3 months, and IUDM every 6 days. Most recently, WebMO Molecule Editor was updated on October 7, 2026 and IUDM on October 1, 2026.

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