Comparison

Mechanical Formula 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

Mechanical Formula

This app provides over 200 essential mechanical engineering formulas and calculations in a user-friendly tool. It's designed to simplify complex concepts and speed up problem-solving for students, professionals, and educators.

Highlights
  • 200+ mechanical engineering formulas
  • Instant calculations
  • Intuitive interface
  • Real-world application explanations
  • Exam preparation aid
  • Lifetime Premium option
Features
Read full description

The Mechanical Engineering Formula & Calculator app brings together 200+ essential mechanical engineering formulas and calculations in one powerful and easy-to-use tool. Designed specifically for mechanical students, professionals, and educators, this app simplifies complex concepts and makes problem-solving faster and more accurate. Developed by engineers for engineers, this app covers a wide range of mechanical engineering topics, helping users understand the principles behind each formula and how they are applied in real-world scenarios. Whether you are studying, revising, or working on-site, this app serves as your reliable engineering companion. With an intuitive interface, you can easily select any calculator, enter the required values, and get instant results with clear output. No complicated steps — just accurate calculations at your fingertips. Perfect for: - Mechanical engineering students - Practicing engineers - Technical instructors - Exam preparation & quick reference Boost your productivity and master mechanical calculations with confidence. In app purchase included : Lifetime Premium Privacy policy : https://chatlyst.in/privacy.html Terms and condition : https://chatlyst.in/tcondition.html

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

Mechanical Formula4 screens
KAI Robotics4 screens

Verdict

The call

The clearest difference is rating: Mechanical Formula at 4.7 against KAI Robotics's 3.6. Mechanical Formula also leads on update cadence (every 4 months vs every 16 months). KAI Robotics's advantage is in-app purchases (none vs 1) and review sentiment (27% vs 0%). On price, ratings volume, 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. Mechanical Formula sells 1 one-off in-app purchase. KAI Robotics asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Mechanical Formula holds the better App Store score, 4.7 against 3.6. Both are backed by a comparable volume of ratings — 34 and 12 respectively. Written reviews complicate that: 0% of Mechanical Formula's written reviews are positive against 27% of KAI Robotics's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Mechanical Formula ships an update every 4 months, KAI Robotics every 16 months. Both last shipped on November 3, 2026.

Scorecard5 real differences · 5 level
Mechanical Formula versus KAI Robotics: the parameters behind the verdict, then further details
ParameterMechanical FormulaKAI Robotics
PriceFreeFree
Rating4.7 (34 ratings) — better3.6 (12 ratings)
Positive reviews0.0% of reviews27.3% of reviews — better
Number of ratings34 — better12
Update frequencyEvery 4 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
Size42 MB68 MB
Age rating4+4+
DeveloperKantaben GorasiyaFranckh-Kosmos Verlags GmbH & Co. KG

Customer experience

Mechanical Formula

All ratings34 ratings
Positive91.2%
Neutral2.9%
Negative5.9%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

KAI Robotics

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

In-app purchases

1 purchases

Mechanical Formula

One-time1
  • Lifetime$9.99
None

KAI Robotics

No in-app purchases

Questions

Is Mechanical Formula free?
Mechanical Formula 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, Mechanical Formula or KAI Robotics?
Mechanical Formula is rated higher. Mechanical Formula averages 4.7 out of 5 from 34 ratings, while KAI Robotics averages 3.6 from 12 ratings.
Do Mechanical Formula or KAI Robotics have ads?
Neither Mechanical Formula nor KAI Robotics shows ads.
Which is updated more often, Mechanical Formula or KAI Robotics?
Mechanical Formula ships an update every 4 months, and KAI Robotics every 16 months. Most recently, Mechanical Formula was updated on November 3, 2026 and KAI Robotics on November 3, 2026.

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