Petoi vs KAI Robotics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Petoi
Configure and control your robot pet toys with this official app. Calibrate joints, perform pre-set actions, and create custom movements. Compatible with Bittle and Nybble robot pets.
- Easy joint calibration
- Control robot movement and actions
- Create custom robot commands
- Share custom commands with community
- Compatible with Bittle and Nybble robots
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The official app for configuring and controlling Petoi's robot pet toys. Features: -- easy calibration interface to make the robot's joints aligned correctly. -- control robots to move with different walking speeds and default actions such as push-up, greetings, stretches, and rest. Great for playing games with your friends and families. -- add custom actions (commands) to your robots to achieve more advanced maneuverability and motions - you may share your customized commands with our community @PetoiCamp. Compatible Petoi robot pets: robot dog Bittle, robot cat Nybble Petoi robot pets are cute, realistic, open-source, palm-sized, compatible with Arduino modules, programmable, and can support Raspberry Pi. Support: official website: www.petoi.com support email: support@petoi.com Support forum: www.petoi.camp/forum
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
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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: Petoi at 4.5 against KAI Robotics's 3.6. Petoi also leads on review sentiment (60% vs 27%) and update cadence (every 4 months vs every 16 months). KAI Robotics's advantage is iOS requirement (12.0 vs 15.6). On price, ratings volume, ads and in-app purchases 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.
Petoi holds the better App Store score, 4.5 against 3.6. Both are backed by a comparable volume of ratings — 13 and 12 respectively. Written reviews point the same way: 60% of Petoi's written reviews are positive against 27% of KAI Robotics's.
Petoi ships an update every 4 months, KAI Robotics every 16 months. The most recent releases landed on July 5, 2026 and September 11, 2026 respectively.
| Parameter | Petoi | KAI Robotics |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (13 ratings) — better | 3.6 (12 ratings) |
| Positive reviews | 60.0% of reviews — better | 27.3% of reviews |
| Number of ratings | 13 — better | 12 |
| Update frequency | Every 4 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 | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 41 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | Petoi LLC | Franckh-Kosmos Verlags GmbH & Co. KG |
Customer experience
Petoi
KAI Robotics
In-app purchases
Petoi
No in-app purchases
KAI Robotics
No in-app purchases









