Molecular Constructor vs Unreal Chemist
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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/
Unreal Chemist
Explore a virtual chemistry lab on your phone. Mix chemicals, observe reactions, and conduct over 750 unique simulations with more than 150 available substances. Adjust variables like temperature and concentration to understand chemical principles.
- Mix chemicals for reactions
- Burn salts for colorful flames
- Heat elements for color emission
- Adjust reactant concentration and quantity
- Regulate reaction temperature
- Control time flow (slow/fast forward)
- Monitor pH changes with indicators
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Chemistry experiments on your smartphones. You can Mix chemicals to see how they react, Burn salts to colorful flames and Heat elements to see what colors it emits There are 150 plus chemicals available to experiment with and more than 750 unique experiment simulations. Key Highlights - Adjusting the concentration and quantity of the reactants. - Regulate the temperature of the reaction. - Modify temperatures in precipitation reactions and see the effect of temperatures on solubility. - Slow down / Fast forward time. - Check the PH and PH change in a reaction, using Indicators. - Ignite flammable gases formed during reaction. Disclaimer Some reactions you will be doing in Unreal Chemist are extremely dangerous and may cause serious injury if conducted in real word. Even though most of the reactions are accurate to the real world, some reactions may be theoretical since physical verification of some reactions are not completed as of now.
Screenshots
Verdict
The clearest difference is rating: Unreal Chemist at 4.5 against Molecular Constructor's 3.9. Unreal Chemist also leads on update cadence (every 2 weeks vs every 12 months). Molecular Constructor's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, review sentiment, ratings volume 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
Both are free to download. Unreal Chemist sells 1 one-off in-app purchase. Molecular Constructor asks for nothing beyond the download.
Unreal Chemist holds the better App Store score, 4.5 against 3.9. Both are backed by a comparable volume of ratings — 52 and 65 respectively. Written reviews complicate that: 75% of Molecular Constructor's written reviews are positive against 74% of Unreal Chemist's, so the app with the better star average is not the one people write more warmly about.
Molecular Constructor ships an update every 12 months, Unreal Chemist every 2 weeks. The most recent releases landed on August 29, 2026 and September 22, 2026 respectively.
| Parameter | Molecular Constructor | Unreal Chemist |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (52 ratings) | 4.5 (65 ratings) — better |
| Positive reviews | 75.0% of reviews — better | 73.8% of reviews |
| Number of ratings | 52 | 65 — better |
| Update frequency | Every 12 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 342 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Teplukhin | ZipoApps |
Customer experience
Molecular Constructor
Unreal Chemist
Bugs and requests
Molecular Constructor
Not enough reviews yet to summarise bugs or requests.
Unreal Chemist
Reported bugs
17 issues- Sulfuric acid not dissolving with salts
- Heating solution during titration
- Watch ad for premium session not working
- Mixing game not always working intuitively
- Buttons on iPhone blocked by camera
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- Some metal flame colors don't match description
- Program sometimes locks up
- Music setting resets after closing program
- Some reactions don't show the full formula
- App crashes on opening
- App gets stuck on the home page
- App kicks the user out
- App opens to a blank grey or white screen
- App won't open
- App crashes when it takes too long to open
- Free version has only 2 reactions
- Interface is buggy (e.g., clicking play sends to home page)
Requested features
32 requests- Add more elements (e.g., Mn, H, O, Cl, F, Pb)
- Add more acids (e.g., Chloroauric acid, Vanadic acid, Perrhenic acid)
- Add more bases and solvents (e.g., styrofoam, polystyrene, ethanol, acetone)
- Add gases (e.g., Chlorine, Fluorine, Hydrogen, Oxygen)
- Option to specify amounts of chemicals to add
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- Kid version with simplified instructions
- Add crafting or new science game modes
- Add more glassware and scientific equipment
- Reintroduce feature to see compound information
- Add challenges or daily missions
- Add ability to use previously made chemicals for new reactions
- Add definitions for elements and reactions
- Add a story or background context
- Add more reactions and compounds
- Add liquid elements (e.g., liquid oxygen, hydrogen)
- Add more bases
- Add more solvents
- Add styrofoam/polystyrene
- Add more elements
- Add more acids
- Add more bases
- Add more solvents
- Add more glassware
- Add more scientific equipment
- Add more reactions
- Add more compounds
- Add more elements
- Add more reactions
- Add more compounds
- Add more elements
- Add more reactions
- Add more compounds
In-app purchases
Molecular Constructor
No in-app purchases
Unreal Chemist
- Premium Version$5.99
Questions
Is Molecular Constructor free?
Is Unreal Chemist free?
Which has better reviews, Molecular Constructor or Unreal Chemist?
Do Molecular Constructor or Unreal Chemist have ads?
Which is updated more often, Molecular Constructor or Unreal Chemist?
Other comparisons
