# Molecules by Theodore Gray vs Univerzoom 3D

The clearest difference is price: Univerzoom 3D at $2.99 against Molecules by Theodore Gray's $9.99. Univerzoom 3D also leads on review sentiment (97% vs 75%) and update cadence (every 2 months vs every 6 months). Molecules by Theodore Gray's advantage is iOS requirement (12.1 vs 15.0). On rating, ads, in-app purchases and device support there is nothing between them.

Molecules by Theodore Gray costs $9.99 and Univerzoom 3D $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Univerzoom 3D holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Univerzoom 3D has 289 ratings behind it against 29, so its average is the more settled of the two. Written reviews point the same way: 75% of Molecules by Theodore Gray's written reviews are positive against 97% of Univerzoom 3D's.

Molecules by Theodore Gray ships an update every 6 months, Univerzoom 3D every 2 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Molecules by Theodore Gray | Univerzoom 3D |
| --- | --- | --- |
| Price | $9.99 | **$2.99** |
| Rating | [4.6 (29 ratings)](https://appshunter.io/ios/app/molecules-by-theodore-gray/id923383841/reviews) | **[4.8 (289 ratings)](https://appshunter.io/ios/app/univerzoom-3d-explore-scale/id1552648156/reviews)** |
| Number of ratings | 29 | **289** |
| Positive reviews | 74.7% of reviews | **97.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 745 MB | 255 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [NatureGuides Ltd.](https://appshunter.io/developer/310574314) | [Linda Schnetzinger](https://appshunter.io/developer/1479825448) |

## What reviewers say

### Molecules by Theodore Gray

[App page](https://appshunter.io/ios/app/molecules-by-theodore-gray/id923383841)

Explore the molecular world with interactive simulations and detailed information. Discover how elements form compounds and witness the dynamic dance of quantum mechanics through touch. This app offers a fun and educational way to understand the nature of substances.

**Highlights:** Touch-interactive molecular dynamics simulation, Bend, squeeze, and shape molecules, Adjust temperature to observe reactions, Full text of the 'Molecules' book, Interactive object rotations, Dozens of 'still life videos'

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ✨ Incredibly beautiful and gorgeous
- 🧠 Authoritative and concise knowledge
- 💡 Makes learning fun and intuitive
- 📚 Excellent educational app
- 🔬 Realistic molecular motion

**What reviewers complain about**

- 🚫 App not updated for years
- 🗣️ No one reads reviews
- 🖨️ Unreadable small white text on black
- 💰 Overpriced for content
- 🐛 Touch input bugs

**Reported bugs**

- Touch input bugs
- App crashes when touching molecules
- Molecular animations not displaying
- Chemical structure 2D display issues
- Repeated paragraphs in text

**Requested features**

- Support for Italian language
- Support for German language
- Support for French language
- Support for Russian language
- Support for Korean language


### Univerzoom 3D

[App page](https://appshunter.io/ios/app/univerzoom-3d-explore-scale/id1552648156)

Explore the vastness of the universe and the intricacies of the microcosmos with intuitive touch controls. Compare celestial bodies, everyday objects, and subatomic particles to grasp their true scale. Discover fascinating facts and learn about the cosmos and beyond.

**Highlights:** Intuitive gesture-based scaling, Explore universe to atomic levels, Compare sizes of diverse objects, Learn facts about celestial bodies, Text-to-Speech for facts, External resource links

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Molecules by Theodore Gray free?

Molecules by Theodore Gray costs $9.99, with no in-app purchases.

### Is Univerzoom 3D free?

Univerzoom 3D costs $2.99, with no in-app purchases.

### Which has better reviews, Molecules by Theodore Gray or Univerzoom 3D?

Univerzoom 3D is rated higher. Molecules by Theodore Gray averages 4.6 out of 5 from 29 ratings, while Univerzoom 3D averages 4.8 from 289 ratings.

### Do Molecules by Theodore Gray or Univerzoom 3D have ads?

Neither Molecules by Theodore Gray nor Univerzoom 3D shows ads.

### Which is updated more often, Molecules by Theodore Gray or Univerzoom 3D?

Molecules by Theodore Gray ships an update every 6 months, and Univerzoom 3D every 2 months. Most recently, Molecules by Theodore Gray was updated on November 1, 2026 and Univerzoom 3D on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*