Comparison

KAI Robotics vs BestBy Buddy

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

Head to head
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! ****

About

BestBy Buddy

Features
Read full description

Food Classification - Cool App for better Health!

Screenshots

KAI Robotics4 screens
BestBy Buddy3 screens

Verdict

The call

The clearest difference is update cadence: BestBy Buddy at every 2 months against KAI Robotics's every 16 months. On price, 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

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

UpkeepUpdate frequency

KAI Robotics ships an update every 16 months, BestBy Buddy every 2 months. The most recent releases landed on October 24, 2026 and May 14, 2026 respectively.

Scorecard1 real difference · 9 level
KAI Robotics versus BestBy Buddy: the parameters behind the verdict, then further details
ParameterKAI RoboticsBestBy Buddy
PriceFreeFree
Rating3.6 (12 ratings) — better—
Positive reviews27.3% of reviews—
Number of ratings12 — better—
Update frequencyEvery 16 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size68 MB121 MB
Age rating4+4+
DeveloperFranckh-Kosmos Verlags GmbH & Co. KGCoding Minds, Inc.

In-app purchases

None

KAI Robotics

No in-app purchases

None

BestBy Buddy

No in-app purchases

Questions

Is KAI Robotics free?
KAI Robotics is free to download, with no in-app purchases.
Is BestBy Buddy free?
BestBy Buddy is free to download, with no in-app purchases.
Do KAI Robotics or BestBy Buddy have ads?
Neither KAI Robotics nor BestBy Buddy shows ads.
Which is updated more often, KAI Robotics or BestBy Buddy?
KAI Robotics ships an update every 16 months, and BestBy Buddy every 2 months. Most recently, KAI Robotics was updated on October 24, 2026 and BestBy Buddy on May 14, 2026.

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