Evo by Ozobot vs KAI Robotics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Evo by Ozobot
This app serves as a companion for learning and creating with a robot companion. It provides access to coding tools, classroom resources, and support to maximize the robot's capabilities for educational and home use.
- Learn with robot companion
- Create with robot companion
- Connect with robot companion
- Ozobot Blockly access
- Classroom resources
- FAQs and support
Read full descriptionHide full description
Meet your go-to companion to learn, create and connect with Evo, all from your smartphone or tablet. For use at school or at home, the Evo App offers quick access to Ozobot Blockly, Classroom, FAQs and more to get the most out of your Ozobot experience.
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.
- Build an AI robot
- Gesture recognition control
- Sound recognition control
- Train AI models
- Offline data processing
- Remote control mode
- Customizable LED display
Read full descriptionHide 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
Verdict
The clearest difference is rating: Evo by Ozobot at 4.6 against KAI Robotics's 3.6. Evo by Ozobot also leads on review sentiment (66% vs 27%) and update cadence (every 2 months vs every 16 months). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Evo by Ozobot holds the better App Store score, 4.6 against 3.6. That said, the two scores are not equally well evidenced: Evo by Ozobot has 1.1K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 66% of Evo by Ozobot's written reviews are positive against 27% of KAI Robotics's.
Evo by Ozobot ships an update every 2 months, KAI Robotics every 16 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | Evo by Ozobot | KAI Robotics |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1.1K ratings) — better | 3.6 (12 ratings) |
| Positive reviews | 66.0% of reviews — better | 27.3% of reviews |
| Number of ratings | 1.1K — better | 12 |
| Update frequency | Every 2 months — better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 239 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | Evollve, Inc. | Franckh-Kosmos Verlags GmbH & Co. KG |
Customer experience
Evo by Ozobot
KAI Robotics
Bugs and requests
Evo by Ozobot
Reported bugs
3 issues- Firmware update bricking Ozobot devices
- Inability to connect and calibrate Ozobot with the app
- Saved programs not working after app updates
Requested features
4 requests- Bring back removed features like customization, tricks, and accounts
- Add battery percentage indicator for Ozobot Evo
- Improve app navigation and make key functions more accessible
- Expand programming and coding capabilities
KAI Robotics
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Evo by Ozobot
No in-app purchases
KAI Robotics
No in-app purchases
Questions
Is Evo by Ozobot free?
Is KAI Robotics free?
Which has better reviews, Evo by Ozobot or KAI Robotics?
Do Evo by Ozobot or KAI Robotics have ads?
Which is updated more often, Evo by Ozobot or KAI Robotics?
Other comparisons















