Comparison

The Elements by Theodore Gray vs Univerzoom 3D

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

Head to head
About

The Elements by Theodore Gray

Explore the building blocks of the universe with this interactive guide to the periodic table. Discover beautifully photographed elements, fascinating stories, and detailed 3D models of over 500 objects, all presented in multiple languages.

Highlights
  • Living periodic table interface
  • Rotating 3D element samples
  • Detailed 3D object models
  • Pinch-zoom and 3D stereo viewing
  • Multilingual support
  • Fascinating stories and facts
Features
Read full description

From Theodore Gray comes a beautifully produced app introducing and educating users on the elements of the periodic table and how they combine to form the world around us. The Elements is a rich and engaging love story, told in words and pictures - allowing you to experience the beauty and fascination of the building blocks of our universe in a way you've never seen before. Start off on a living periodic table where every element is shown with a smoothly rotating sample. To read about gold, tap the gold nugget. Immediately you see the sample filling the screen, photographed to razor sharpness and rotating around a complete circle in front of your eyes. Enjoy the extensive array of facts and figures. Next find a fascinating story about the element, surrounded by carefully photographed objects representing it. Every one of these objects, well over 500 in total, is a freely rotatable, live object that you can examine from all sides and pinch zoom to see in unprecedented detail. Touch the element name at the top of the page and you can see that element’s name in over a dozen different languages. Choose one and you’ll find that the entire book, stories, captions and all, switches to that language: The Elements includes both the full English original text and over a dozen full translations. Pinch-zoom or tap any object to bring it up full screen, where you can split into a pair of stereo 3D images, allowing you to see all 500 objects pop off the screen in 3D, and you can spin the objects, in 3D, with the touch of a finger. This book will show everyone there’s a lot more to the periodic table than a bunch of numbers and letters. Features include: • Beautifully composed pages for every Element in the periodic table • Fun stories and fascinating facts • All objects pinch-zoom with amazing detail and rotate in 3D • Engaging introduction explaining the structure of the periodic table • Engaging introduction explaining the structure of the periodic table • Fully translated into English, Catalan, Croatian, Dutch, Finnish, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Turkish ------------ Reviews: “The iPad’s splendor and power may be best shown by The Elements... it’s not like any ebook you’ve seen. The periodic table of elements comes to life.” – USA Today

About

Univerzoom 3D

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
Read full description

This app gives you the superpower to scale the entire universe with a swipe of your fingers! Zoom out faster than light and see the cosmos from a whole new perspective. Compare the biggest objects to the tiniest and get a true sense of size. ZOOM • Control the scale with simple gestures • Zoom out billions of light years to the edge of the visible universe • Zoom in to microscopic dimensions, down to atoms and beyond • Easy for anyone to use — from kids to grandparents DISCOVER • Explore the scale of the universe and the microcosmos • Compare stars, planets, rockets, telescopes, animals, and everyday objects • Understand how our Sun measures up to other stars LEARN • Find stunning facts about selected objects, or let them be read aloud via Text-to-Speech • Access trusted external sources for deeper exploration • Perfect for curious minds, students, and science fans Download now and experience the universe like never before!

Screenshots

The Elements by Theodore Gray4 screens
Univerzoom 3D4 screens

Verdict

The call

The clearest difference is price: Univerzoom 3D at $2.99 against The Elements by Theodore Gray's $9.99. Univerzoom 3D also leads on review sentiment (97% vs 73%) and iOS requirement (15.0 vs 17.0). On rating, ratings volume, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

The Elements 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.

ReceptionRating · Positive reviews · Number of ratings

Univerzoom 3D holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 123 and 289 respectively. Written reviews point the same way: 73% of The Elements by Theodore Gray's written reviews are positive against 97% of Univerzoom 3D's.

UpkeepUpdate frequency

The Elements by Theodore Gray ships an update every 3 months, Univerzoom 3D every 2 months. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.

Scorecard4 real differences · 6 level
The Elements by Theodore Gray versus Univerzoom 3D: the parameters behind the verdict, then further details
ParameterThe Elements by Theodore GrayUniverzoom 3D
Price$9.99$2.99 — better
Rating4.6 (123 ratings)4.8 (289 ratings) — better
Positive reviews73.1% of reviews97.3% of reviews — better
Number of ratings123289 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size1.5 GB255 MB
Age rating4+4+
DeveloperNatureGuides Ltd.Linda Schnetzinger

Customer experience

The Elements by Theodore Gray

All ratings122 ratings
Positive89.3%
Neutral3.3%
Negative7.4%
Written reviews479 reviews
Positive73.1%
Neutral9.6%
Negative17.3%

Univerzoom 3D

All ratings289 ratings
Positive96.2%
Neutral1.0%
Negative2.8%
Written reviews75 reviews
Positive97.3%
Neutral0.0%
Negative2.7%

Bugs and requests

The Elements by Theodore Gray

Reported bugs

3 issues
  • Element descriptions cut off on iPhone 6 Plus
  • Crashes when switching landscape orientations
  • Unable to download app after initial purchase

Requested features

4 requests
  • Add option to disable animations
  • Improve periodic table navigation
  • Include more detailed scientific information
  • Support multiple languages and spellings

Univerzoom 3D

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

The Elements by Theodore Gray

No in-app purchases

None

Univerzoom 3D

No in-app purchases

Questions

Is The Elements by Theodore Gray free?
The Elements 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, The Elements by Theodore Gray or Univerzoom 3D?
Univerzoom 3D is rated higher. The Elements by Theodore Gray averages 4.6 out of 5 from 123 ratings, while Univerzoom 3D averages 4.8 from 289 ratings.
Do The Elements by Theodore Gray or Univerzoom 3D have ads?
Neither The Elements by Theodore Gray nor Univerzoom 3D shows ads.
Which is updated more often, The Elements by Theodore Gray or Univerzoom 3D?
The Elements by Theodore Gray ships an update every 3 months, and Univerzoom 3D every 2 months. Most recently, The Elements by Theodore Gray was updated on October 26, 2026 and Univerzoom 3D on October 21, 2026.

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