Comparison

Molecular Constructor vs Molecule Lab

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

Head to head
About

Molecular Constructor

Create and optimize 3D molecular models. This free software allows users to design molecules and refine their geometry simultaneously. A more advanced desktop version is also available.

Highlights
  • Build molecules in 3D
  • Design molecular structures
  • Optimize geometry
  • Free software
  • Desktop version available
Features
Read full description

Molecular Constructor is a free 3D modeling software for building molecules. Using this application user can design a molecule and optimize its geometry at the same time. The more advanced desktop version can be found at the project website: http://molconstr.com/

About

Molecule Lab

Create and view 3D molecular models with an intuitive editor. Supports various elements, bond types, and conformations, with undo/redo functionality. Share your creations easily via messaging and email.

Highlights
  • Build molecules in 3D
  • Supports oxygen, nitrogen, chlorine, carbon, hydrogen
  • Double and triple bond creation
  • Branching and rotation conformations
  • Undo, redo, and delete controls
  • Save and edit molecules
  • Share via text, email, and other services
Features
Read full description

Molecule Lab is a simple yet powerful editor allowing users to build and visualize molecules in 3D. Our molecule editor can build more molecules than before, as it now supports three new elements—oxygen, nitrogen, and chlorine—in addition to carbon and hydrogen, double bonds, triple bonds, branches, and different rotation conformations. These incredible new features are enhanced by the flexibility of our molecule editor, which we further upgraded with undo, redo, and delete controls. Molecules can be saved and edited in the future. Additionally, we introduced the capability to share molecules via text message, email, and other third-party services for notetaking and document sharing. This seamless integration with different apps makes Molecule Lab more powerful for sharing and referencing molecules in the future. With all these exciting features, we are thrilled to debut a new look and feel for Molecule Lab. We hope the beautiful modern design will enrich each user’s experience with Molecule Lab.

Screenshots

Molecular Constructor3 screens
Molecule Lab1 screens

Verdict

The call

Molecular Constructor and Molecule Lab both sit at 3.9 stars, but that hides the real split: 75% of Molecular Constructor's written reviews are positive against 50% of Molecule Lab's. On price, rating, ratings volume and update cadence 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.9 for Molecular Constructor against 4.0 for Molecule Lab. Both are backed by a comparable volume of ratings — 52 and 18 respectively. Written reviews are what separate them: 75% of Molecular Constructor's written reviews are positive against 50% of Molecule Lab's.

UpkeepUpdate frequency

Molecular Constructor ships an update every 12 months, Molecule Lab every 24 months. The most recent releases landed on August 29, 2026 and August 25, 2026 respectively.

Scorecard1 real difference · 9 level
Molecular Constructor versus Molecule Lab: the parameters behind the verdict, then further details
ParameterMolecular ConstructorMolecule Lab
PriceFreeFree
Rating3.9 (52 ratings)4.0 (18 ratings) — better
Positive reviews75.0% of reviews — better50.0% of reviews
Number of ratings52 — better18
Update frequencyEvery 12 months — betterEvery 24 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.2
Further details — not scored
Size10 MB1 MB
Age rating4+4+
DeveloperAlexander TeplukhinMaxamix

Customer experience

Molecular Constructor

All ratings52 ratings
Positive73.1%
Neutral7.7%
Negative19.2%
Written reviews60 reviews
Positive75.0%
Neutral15.0%
Negative10.0%

Molecule Lab

All ratings18 ratings
Positive66.7%
Neutral22.2%
Negative11.1%
Written reviews8 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

In-app purchases

None

Molecular Constructor

No in-app purchases

None

Molecule Lab

No in-app purchases

Questions

Is Molecular Constructor free?
Molecular Constructor is free to download, with no in-app purchases.
Is Molecule Lab free?
Molecule Lab is free to download, with no in-app purchases.
Which has better reviews, Molecular Constructor or Molecule Lab?
Molecule Lab is rated higher. Molecular Constructor averages 3.9 out of 5 from 52 ratings, while Molecule Lab averages 4.0 from 18 ratings.
Do Molecular Constructor or Molecule Lab have ads?
Neither Molecular Constructor nor Molecule Lab shows ads.
Which is updated more often, Molecular Constructor or Molecule Lab?
Molecular Constructor ships an update every 12 months, and Molecule Lab every 24 months. Most recently, Molecular Constructor was updated on August 29, 2026 and Molecule Lab on August 25, 2026.

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