Comparison

Petoi 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

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.

Highlights
  • Easy joint calibration
  • Control robot movement and actions
  • Create custom robot commands
  • Share custom commands with community
  • Compatible with Bittle and Nybble robots
Read full description

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

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

Petoi4 screens
KAI Robotics4 screens

Verdict

The call

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

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

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Petoi versus KAI Robotics: the parameters behind the verdict, then further details
ParameterPetoiKAI Robotics
PriceFreeFree
Rating4.5 (13 ratings) — better3.6 (12 ratings)
Positive reviews60.0% of reviews — better27.3% of reviews
Number of ratings13 — better12
Update frequencyEvery 4 months — betterEvery 16 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size41 MB68 MB
Age rating4+4+
DeveloperPetoi LLCFranckh-Kosmos Verlags GmbH & Co. KG

Customer experience

Petoi

All ratings13 ratings
Positive84.6%
Neutral0.0%
Negative15.4%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

KAI Robotics

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

In-app purchases

None

Petoi

No in-app purchases

None

KAI Robotics

No in-app purchases

Questions

Is Petoi free?
Petoi is free to download, with no in-app purchases.
Is KAI Robotics free?
KAI Robotics is free to download, with no in-app purchases.
Which has better reviews, Petoi or KAI Robotics?
Petoi is rated higher. Petoi averages 4.5 out of 5 from 13 ratings, while KAI Robotics averages 3.6 from 12 ratings.
Do Petoi or KAI Robotics have ads?
Neither Petoi nor KAI Robotics shows ads.
Which is updated more often, Petoi or KAI Robotics?
Petoi ships an update every 4 months, and KAI Robotics every 16 months. Most recently, Petoi was updated on July 5, 2026 and KAI Robotics on September 11, 2026.

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