Comparison

The Elements by Theodore Gray vs Voyëlia

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

Voyëlia

Features
Read full description

Voyëlia est une application dédiée aux enfants expatriés et francophones du monde entier et à leurs familles. Elle permet de créer un lien vivant avec la langue française à travers une communauté interactive, des classes en ligne partout dans le monde, des activités ludiques et des contenus éducatifs. L'objectif de Voyëlia est de rendre le français vivant, naturel et amusant au quotidien, même lorsque les enfants vivent à l'étranger ou dans un environnement non francophone. Dans l'application, les utilisateurs peuvent retrouver : • Une communauté sécurisée où les enfants peuvent échanger et partager • Des activités et défis en français pour apprendre en s'amusant • Des classes et contenus éducatifs adaptés aux différents âges et niveaux • Des événements et moments collectifs pour pratiquer le français ensemble • Un espace dédié aux familles pour suivre les progrès, encourager la pratique et échanger avec l'équipe pédagogique Voyëlia s'adresse aux enfants de différents âges et niveaux, du débutant au plus avancé. L'approche pédagogique repose sur le jeu, la répétition naturelle et l'interaction, afin de favoriser un apprentissage durable et motivant. Les parents peuvent accompagner leurs enfants dans leur parcours et suivre leur évolution directement depuis l'application. L'objectif est de créer un environnement positif où le français est associé au plaisir, à la créativité et à la connexion avec d'autres enfants francophones dans le monde. Voyëlia n'est pas seulement une application d'apprentissage, c'est un espace de vie en français : une communauté internationale où les enfants peuvent pratiquer, s'exprimer et progresser naturellement. L'application est mise à jour régulièrement avec de nouvelles activités, des contenus éducatifs et des événements communautaires. Voyëlia : la France dans leur tête, leur bouche et leur cœur, au quotidien.

Screenshots

The Elements by Theodore Gray4 screens
Voyëlia4 screens

Verdict

The call

The clearest difference is price: Voyëlia at Free against The Elements by Theodore Gray's $9.99. Voyëlia also leads on iOS requirement (15.0 vs 17.0). On ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Voyëlia is free to download; The Elements by Theodore Gray costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 8 level
The Elements by Theodore Gray versus Voyëlia: the parameters behind the verdict, then further details
ParameterThe Elements by Theodore GrayVoyëlia
Price$9.99Free — better
Rating4.6 (123 ratings) — better—
Positive reviews73.1% of reviews—
Number of ratings123 — better—
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size1.5 GB103 MB
Age rating4+4+
DeveloperNatureGuides Ltd.VOYELIA

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

Voyëlia

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

The Elements by Theodore Gray

No in-app purchases

None

Voyëlia

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 Voyëlia free?
Voyëlia is free to download, with no in-app purchases.
Do The Elements by Theodore Gray or Voyëlia have ads?
Neither The Elements by Theodore Gray nor Voyëlia shows ads.

Other comparisons