Molecule vs Molecular Constructor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Molecule
This app allows users to create and share chemical structures with ease. It calculates molecular formula, weight, and elemental composition in real-time as you draw. Ideal for students and researchers needing a simple tool for molecular visualization.
- Draw chemical structures
- Share structures
- Calculate MF, MW, Monoisotopic Mass
- Calculate Elemental Composition
- Interactive calculations
- Modern interface
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Simple modern chemical structure editor. Allow to draw and share chemical structure. MF, MW, Monoisotopic Mass and Elemental Composition calculated interactively during drawing.
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.
- Build molecules in 3D
- Design molecular structures
- Optimize geometry
- Free software
- Desktop version available
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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/
Screenshots
Verdict
The clearest difference is update cadence: Molecule at every 4 months against Molecular Constructor's every 12 months. Molecule also leads on iOS requirement (7.0 vs 12.0). Molecular Constructor's advantage is ratings volume (52 vs 10). On price, rating, review sentiment 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.0 for Molecule against 3.9 for Molecular Constructor. That said, the two scores are not equally well evidenced: Molecular Constructor has 52 ratings behind it against 10, so its average is the more settled of the two. Written reviews are what separate them: 76% of Molecule's written reviews are positive against 75% of Molecular Constructor's.
Molecule ships an update every 4 months, Molecular Constructor every 12 months. The most recent releases landed on August 30, 2026 and August 29, 2026 respectively.
| Parameter | Molecule | Molecular Constructor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (10 ratings) — better | 3.9 (52 ratings) |
| Positive reviews | 76.2% of reviews — better | 75.0% of reviews |
| Number of ratings | 10 | 52 — better |
| Update frequency | Every 4 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 9 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Kirill Blinov | Alexander Teplukhin |
Customer experience
Molecule
Molecular Constructor
In-app purchases
Molecule
No in-app purchases
Molecular Constructor
No in-app purchases
Questions
Is Molecule free?
Is Molecular Constructor free?
Which has better reviews, Molecule or Molecular Constructor?
Do Molecule or Molecular Constructor have ads?
Which is updated more often, Molecule or Molecular Constructor?
Other comparisons
