Comparison

Molecules vs Pro Chemical Bonding

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

Head to head
About

Molecules

Explore and interact with 3D molecular models on your device. Rotate, zoom, and pan structures using intuitive touch gestures. Visualize molecules in different modes and load custom structures from various sources.

Highlights
  • 3D molecule rendering
  • Finger-based manipulation (rotate, zoom, pan)
  • Ball-and-stick visualization
  • Spacefilling visualization
  • Load custom molecular structures
  • File sharing and iCloud import
Features
Read full description

Molecules is an application for viewing three-dimensional renderings of molecules and manipulating them using your fingers. You can rotate the molecules by moving your finger across the display, zoom in or out by using two-finger pinch gestures, or pan the molecule by moving two fingers across the screen at once. These structures can be viewed in both ball-and-stick and spacefilling visualization modes. Molecules can be stored on your handheld device for later viewing and are loaded via a standard document-based file browser. Custom molecular structures can be downloaded to the application via file sharing or iCloud, and obtained via sources like the RCSB Protein Data Bank (http://www.rcsb.org/pdb), an international repository of biological molecules and their 3-D structures, or NCBI's PubChem (http://pubchem.ncbi.nlm.nih.gov), a public database of compounds. For more details, please visit our website. Molecules is a BSD-licensed open source project.

About

Pro Chemical Bonding

Master the fundamental concept of chemical bonding with this educational tool. It offers learning modules and a simple exam to reinforce understanding and support academic achievement.

Highlights
  • Learn chemical bonding concepts
  • Take simple exams
  • Supports academic success
  • Educational content
Features
Read full description

This educational app is your perfect companion for learning and mastering chemical bonding — a core concept in chemistry.  This app allows students to learn about and take a simple exam on chemical bonding, which supports their academic success.

Screenshots

Molecules4 screens
Pro Chemical Bonding4 screens

Verdict

The call

The clearest difference is review sentiment: Molecules at 65% against Pro Chemical Bonding's 0%. Molecules also leads on ads (none vs shown) and update cadence (every 2 months vs every 32 months). Pro Chemical Bonding's advantage is iOS requirement (12.0 vs 16.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Molecules ships an update every 2 months, Pro Chemical Bonding every 32 months. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 5 level
Molecules versus Pro Chemical Bonding: the parameters behind the verdict, then further details
ParameterMoleculesPro Chemical Bonding
PriceFreeFree
Rating3.6 (168 ratings) — better—
Positive reviews65.5% of reviews — better0.0% of reviews
Number of ratings168 — better—
Update frequencyEvery 2 months — betterEvery 32 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.012.0 — better
Further details — not scored
Size3 MB11 MB
Age rating4+4+
DeveloperSunset Lake Softwaregangadhar goud

Customer experience

Molecules

All ratings166 ratings
Positive62.7%
Neutral12.0%
Negative25.3%
Written reviews388 reviews
Positive65.5%
Neutral18.6%
Negative16.0%

Pro Chemical Bonding

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Bugs and requests

Molecules

Reported bugs

4 issues
  • Crashes when switching between views
  • Molecules disappear after reopening the app
  • Search function is unreliable and limited
  • Compatibility issues with newer iOS versions

Requested features

5 requests
  • Add ability to build and edit molecules
  • Implement a color key for atom types
  • Include more basic molecules (H2O, CO2, etc.)
  • Allow sorting/organizing downloaded molecules
  • Integrate with databases like PubChem and RCSB

Pro Chemical Bonding

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Molecules

No in-app purchases

None

Pro Chemical Bonding

No in-app purchases

Questions

Is Molecules free?
Molecules is free to download, with no in-app purchases.
Is Pro Chemical Bonding free?
Pro Chemical Bonding is free to download, with no in-app purchases.
Do Molecules or Pro Chemical Bonding have ads?
Pro Chemical Bonding shows ads; Molecules does not.
Which is updated more often, Molecules or Pro Chemical Bonding?
Molecules ships an update every 2 months, and Pro Chemical Bonding every 32 months. Most recently, Molecules was updated on October 23, 2026 and Pro Chemical Bonding on October 10, 2026.

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