Comparison

U.S. Army STARS Elements vs Central Valley VEL

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

Head to head
About

U.S. Army STARS Elements

Explore the world of chemistry with interactive tools to build atoms, learn chemical bonds, and discover elements. Test your knowledge with engaging challenges designed for students, teachers, and enthusiasts.

Highlights
  • Atom Builder
  • SmashBond game
  • Interactive Periodic Table
  • STARS Challenge quiz
  • 3D atom construction
  • Bohr's model visualization
Features
Read full description

U.S. Army STARS Elements is a fun and exciting way to learn chemistry. Build your own atom, play a game to help you learn about chemical bonds, explore the periodic table, and test your chemistry knowledge. Elements is great for students, teachers, and anyone interested in chemistry. U.S. Army STARS Elements includes... Atom Builder - A simple, powerful tool that let’s you construct and discover atoms. Add and subtract protons, neutrons, and electrons and see, in 3D, what you can create. SmashBond - Use the octet rule to bond elements and score points in SmashBond. Swap elements to make 2, 3, or 4 element bonds, and grab bonuses to get a SMASHBOND. It’s a really fun way to help you become familiar with the octet rule and learn common chemical bonds by their type, symbol, name and Lewis dot diagram. Periodic Table - Use the table to view trends and detailed information about each of the 118 elements. See an interactive Bohr’s model and learn interesting facts about the elements. It’s like a regular periodic table, but interactive and fun. STARS Challenge - When you’re ready to test your knowledge, take the STARS Challenge. You’ll be presented with questions in 3 areas (elements, bonding, and atomic configuration). Can you master them all? No matter what your level of experience with chemistry, U.S. Army STARS Elements makes learning fun. Easy to use lesson plans and teacher guides are available at http://usarmystars.com/lessons to help integrate Elements into the classroom.

About

Central Valley VEL

Explore the internal components of electric vehicle batteries and visualize complex molecular structures in augmented reality. Interact with 3D models to understand electron flow and chemical arrangements.

Highlights
  • Augmented reality visualization
  • Explore EV battery internals
  • Visualize electron flow
  • Manipulate molecular structures
  • Interactive 3D models
Features
Read full description

View the inner workings of an electric vehicle (EV) battery and the structure of molecules using augmented reality technology! - Manipulate and explore molecules from any angle, making it easier than ever to grasp complex chemical structures. - See the inside of EV batteries and watch how electrons flow through the battery while charging, moving uphill, and more.

Screenshots

U.S. Army STARS Elements4 screens
Central Valley VEL1 screens

Verdict

The call

The clearest difference is rating: U.S. Army STARS Elements at 4.6 against Central Valley VEL's 3.0. U.S. Army STARS Elements also leads on ratings volume (19 vs 2). On price, ads, in-app purchases and monetization model 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

U.S. Army STARS Elements holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: U.S. Army STARS Elements has 19 ratings behind it against 2, so its average is the more settled of the two.

Scorecard2 real differences · 8 level
U.S. Army STARS Elements versus Central Valley VEL: the parameters behind the verdict, then further details
ParameterU.S. Army STARS ElementsCentral Valley VEL
PriceFreeFree
Rating4.6 (19 ratings) — better3.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings19 — better2
Update frequencyEvery 8 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.011.0
Further details — not scored
Size213 MB248 MB
Age rating9+4+
DeveloperArmy Game StudioCalifornia State University, Bakersfield

Customer experience

U.S. Army STARS Elements

All ratings18 ratings
Positive88.9%
Neutral5.6%
Negative5.6%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Central Valley VEL

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

U.S. Army STARS Elements

No in-app purchases

None

Central Valley VEL

No in-app purchases

Questions

Is U.S. Army STARS Elements free?
U.S. Army STARS Elements is free to download, with no in-app purchases.
Is Central Valley VEL free?
Central Valley VEL is free to download, with no in-app purchases.
Which has better reviews, U.S. Army STARS Elements or Central Valley VEL?
U.S. Army STARS Elements is rated higher. U.S. Army STARS Elements averages 4.6 out of 5 from 19 ratings, while Central Valley VEL averages 3.0 from 2 ratings.
Do U.S. Army STARS Elements or Central Valley VEL have ads?
Neither U.S. Army STARS Elements nor Central Valley VEL shows ads.

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