Comparison

MEL VR Science Simulations vs KAI Robotics

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

Head to head
About

MEL VR Science Simulations

Explore chemistry and physics through immersive virtual reality simulations and interactive labs. This app transforms learning complex scientific concepts into an engaging and entertaining experience, perfect for students and educators.

Highlights
  • Virtual reality science simulations
  • Interactive labs and lessons
  • Chemistry and physics curriculum alignment
  • Molecular and atomic level exploration
  • Interactive periodic table
  • Over 70 VR lessons, labs, and simulations
Features
Read full description

MEL VR Science Simulations is a growing series of science simulations, lessons, and labs covering chemistry and physics. Made to fit right into the school curriculum, virtual reality turns studying into an interactive and immersive experience, making learning entertaining. Become a researcher in a scientific laboratory You will enter the MEL Virtual Laboratory, where you will zoom in on such seemingly simple objects like a pencil or a balloon, fly between molecules and atoms, and understand the differences between solids and gaseous substances at a molecular level! Immerse yourself in the world of chemistry and physics and see how it looks from the inside. With the virtual reality glasses you will see chemical compounds and physical reactions inside everyday objects. Don’t memorize, understand! It’s not enough to memorize formulas from a textbook. To understand the concepts of science, shrink down to the molecular and atomic level, immerse yourself in different types of matter and see how atoms and molecules interact from a whole new perspective. Online school in virtual reality It is difficult to retain the attention of children with formulas and boring textbooks. Immersed in virtual reality, nothing distracts from study. Short 5-minute VR lessons, interactive labs, and simulations are an excellent way to understand complex chemical and physical concepts through engaging visualizations. With MEL VR Science Simulations, science becomes a favorite subject at home and at school. To cover all the main topics, at present the application contains a growing library of over 70 VR lessons, labs, and simulations: Discover that an atom consists of a tiny nucleus, surrounded by an electron cloud. Learn about the three main subatomic particles: electrons, protons and neutrons. You will see how atoms are arranged in ordinary items like pencils and balloons. Find out that atoms in solids do not remain motionless, but are in motion all the time! Dive into gaseous helium and see how these atoms behave. What happens with atoms when the temperature increases? In the interactive laboratory you can assemble any atoms, and study the structure of their electron orbitals. Assemble any molecule and see how they take shape. Learn the difference between the structural and skeletal formula. Look at the real position of atoms in a molecule and the bonds between them. Use our interactive periodic table to find out how the periodic table is arranged. Why the elements are placed in this order, and what information you can learn from the position of an element in the periodic table. You can select any element, and see the structure of its atoms and electron configuration. MEL VR Science simulations also has lessons, labs, and simulations covering isotopes, electrons, ions,the periodic table, molecular formulas, isomers, electrostatics and much more. The future of education is already here, download the MEL VR Science simulations application right now! All content is also available to view in 2D. Language options available. For educational licensing or bulk purchasing, contact vr@melscience.com

About

KAI Robotics

Build and control an AI robot using your device. Collect data, train the AI model with gestures and sounds, and then play with your robot. Offers remote control and customization options for the robot's LED display.

Highlights
  • Build an AI robot
  • Gesture recognition control
  • Sound recognition control
  • Train AI models
  • Offline data processing
  • Remote control mode
  • Customizable LED display
Features
Read full description

The app for KAI: The Artificial Intelligence Robot STEM Experiment Kit: Safely explore and understand AI and the future of advanced computing technology. With the physical expeiment kit, build your own six-legged, artificial intelligence robot that moves by reacting to the gestures and sounds that you make! There are three steps to create a functioning AI model that allows you to control your robot using poses or sounds: 1. Collect data. 2. Train the AI model with your data. 3. Play with your robot using the AI model. Collect data: Use the app to easily collect the data you need to assign your own movements or sounds to your robot's functions, enabling it to walk, turn, and stop; explore the concept of machine learning as your AI robot learns the gestures and sounds to better perform the assigned functions. Gesture recognition: Choose a gesture or movement to assign to a specific function of your physical robot. For example, you can raise your right arm to trigger the "move right" function. Sound recognition: Choose a sound to assign to a specific function of your physcial robot. For example, you can whistle or clap to trigger the "move right" function. Train the AI model: The data you collected forms a dataset which is then used to create an AI model that your robot can learn from. Play with your robot: Now you can perform the poses or sounds you assigned to various actions and control your robot to move in specific ways! Additionally, the app allows you to play with the robot in remote control mode: - Use the virtual joystick or position sensor of your phone/tablet to move your robot without utilizing any of its AI functions. - Tap on predetermined facial expressions to change the face on the robot’s LED display, or use the draw or text button to customize the facial expression or text that appears on the LED display. The app has been developed to keep your data as safe and private as possible. The app works completely offline, without connection to the Internet, meaning that all calculations are made locally on your device and no image or audio data is stored by the app. This has been confirmed by an independent data protection expert. The full functionality of the app is only available in combination with the physical KAI: The Artificial Intelligence Robot STEM Experiment Kit. ***** Questions or suggestions for improvements: Mail to apps@kosmos.de We are looking forward to your feedback! ****

Screenshots

MEL VR Science Simulations4 screens
KAI Robotics4 screens

Verdict

The call

The clearest difference is in-app purchases: KAI Robotics at none against MEL VR Science Simulations's 8. MEL VR Science Simulations's advantage is review sentiment (56% vs 27%) and update cadence (every 2 months vs every 16 months). On price, rating, ads 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

Both are free to download. MEL VR Science Simulations sells 8 one-off in-app purchases. KAI Robotics asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MEL VR Science Simulations holds the better App Store score, 3.8 against 3.6. That said, the two scores are not equally well evidenced: MEL VR Science Simulations has 90 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 56% of MEL VR Science Simulations's written reviews are positive against 27% of KAI Robotics's.

UpkeepUpdate frequency

MEL VR Science Simulations ships an update every 2 months, KAI Robotics every 16 months. Both last shipped on October 14, 2026.

Scorecard5 real differences · 5 level
MEL VR Science Simulations versus KAI Robotics: the parameters behind the verdict, then further details
ParameterMEL VR Science SimulationsKAI Robotics
PriceFreeFree
Rating3.8 (90 ratings) — better3.6 (12 ratings)
Positive reviews56.1% of reviews — better27.3% of reviews
Number of ratings90 — better12
Update frequencyEvery 2 months — betterEvery 16 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size1.1 GB68 MB
Age rating4+4+
DeveloperMEL Science LimitedFranckh-Kosmos Verlags GmbH & Co. KG

Customer experience

MEL VR Science Simulations

All ratings89 ratings
Positive68.5%
Neutral3.4%
Negative28.1%
Written reviews41 reviews
Positive56.1%
Neutral9.8%
Negative34.1%

KAI Robotics

All ratings12 ratings
Positive58.3%
Neutral16.7%
Negative25.0%
Written reviews11 reviews
Positive27.3%
Neutral18.2%
Negative54.5%

In-app purchases

8 purchases

MEL VR Science Simulations

One-time8
  • Atoms lessons pack$9.99
  • Periodic Table lessons pack$9.99
  • Molecules lessons pack$9.99
Show 5 more
  • Gas Laws lessons pack$9.99
  • Isomerism lessons pack$9.99
  • Electrostatics lessons pack$9.99
  • Temperature lessons pack$9.99
  • Substances lessons pack$9.99
None

KAI Robotics

No in-app purchases

Questions

Is MEL VR Science Simulations free?
MEL VR Science Simulations is free to download, with in-app purchases available.
Is KAI Robotics free?
KAI Robotics is free to download, with no in-app purchases.
Which has better reviews, MEL VR Science Simulations or KAI Robotics?
MEL VR Science Simulations is rated higher. MEL VR Science Simulations averages 3.8 out of 5 from 90 ratings, while KAI Robotics averages 3.6 from 12 ratings.
Do MEL VR Science Simulations or KAI Robotics have ads?
Neither MEL VR Science Simulations nor KAI Robotics shows ads.
Which is updated more often, MEL VR Science Simulations or KAI Robotics?
MEL VR Science Simulations ships an update every 2 months, and KAI Robotics every 16 months. Most recently, MEL VR Science Simulations was updated on October 14, 2026 and KAI Robotics on October 14, 2026.

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