Mechanism vs Kayf

Most "learning" apps teach you trivia. Mechanism teaches you how things actually work — and proves it by making you build the thing, not just read about it. Every lesson follows the same rule: try it before you're told. Wire lemons into a real circuit and watch a bulb light up. Drag pins until a lock cylinder turns. Spin two meshed gears and feel speed trade for force. Drag a pin across three overlapping rings until it lands on the exact spot GPS would find. You guess first, then the app tells you why you were right or wrong — not the other way around. WHAT'S INSIDE • 10 interactive mechanisms across 4 areas: Electricity & Circuits, Radio & Signals, Mechanisms, and Everyday Physics • Hand-built interactive diagrams for every hero lesson — not stock illustrations, not video, things you actually manipulate • A "try it yourself" step on every lesson — a real, physical follow-up you can do with things already in your house • Streaks, XP, and a rank system that tracks real progress, not just days opened • Shareable proof cards for what you just learned • Narration on every step, on by default, with a one-tap mute WHY IT'S DIFFERENT Most micro-learning apps are general trivia — pop culture, random facts, a little of everything. Mechanism only does one thing: the actual mechanics behind objects you touch every day. A lemon battery. A pin-tumbler lock. A capacitor flash. Bluetooth's frequency hopping. GPS trilateration. Real mechanisms, explained by making you build them, not by handing you a paragraph to skim. New mechanisms are added regularly. A 7-day free trial gets you into everything; cancel anytime in your device's subscription settings. privacy policy : https://mechanism.talelb.tn/privacy terms of use : https://mechanism.talelb.tn/terms

Kayf is an illustrated encyclopedia of how things work. Pick any device, from the fan on your desk to the refrigerator, the microwave, your phone, a car engine, a wind turbine or an MRI scanner, and open it up. Every one of the 92 devices is a real 3D model, cut open so you can see inside: turn it in your hands, pull it apart, tap any part to learn what it does, and watch the moving parts run. Glowing streams show where the air, water, refrigerant, fuel or current actually goes. Then follow the animated step-by-step sequence of how the device works, with each part lighting up as it plays its role. Place any device on your desk in AR and walk around it at life size. 92 DEVICES IN 8 CATEGORIES - Home appliances: fan, refrigerator, air conditioner, washing machine, vacuum cleaner, water heater, iron, hair dryer, dishwasher, dryer, sewing machine, dehumidifier - Kitchen: microwave, kettle, blender, toaster, espresso machine, induction cooktop, gas stove, pressure cooker, rice cooker, air fryer, oven - Electronics: LED bulb, loudspeaker, microphone, noise-cancelling headphones, camera, television, remote control, lithium battery, electric motor, transformer, smartwatch - Computing and communication: smartphone, touchscreen, Wi-Fi router, processor, SSD and hard drive, printer, GPS, barcode scanner, fiber optics, Bluetooth - Transport: car engine, electric car, bicycle, jet engine, helicopter, how planes fly, ABS brakes, submarine, drone, elevator, escalator, traffic light - Energy: solar panel, wind turbine, hydroelectric dam, nuclear reactor, generator, power grid, gas power plant, desalination, UPS, geothermal - Everyday mechanisms: lock and key, toilet flush, mechanical watch, zipper, bicycle pump, thermostat, smoke detector, doorbell, digital scale, ballpoint pen, aerosol can, fire extinguisher, faucet, 3D printer, power drill - Medical and science: X-ray, MRI, ultrasound, blood pressure monitor, stethoscope, pulse oximeter, infrared thermometer, microscope, pacemaker, defibrillator, telescope FOR EVERY DEVICE - A full 3D model you can turn, zoom, cut away and take apart - Labelled callouts that name every part on the model - Tap a part to learn its role and material - AR mode: stand the device on a real table and look inside it - Animated how-it-works sequence, step by step - The science: several paragraphs on the physics and the design choices - By the numbers: power, speed, temperature, efficiency, lifespan - Surprising facts, types and variants, safety notes - Related devices and the principles they share THE PHYSICS - 36 principles from electromagnetic induction to Bernoulli, each explained with a formula and everyday examples and linked to every device that uses it - A glossary of more than 110 technical terms in plain words KAYF PRO (one-time purchase) - All 92 devices - Troubleshooting guides: real symptoms, likely causes and what to do - Every quiz: five questions per device, category quizzes and the mixed challenge - Compare two devices side by side Fully in English and Arabic with true right-to-left layout. No account, no ads, no data collection. Everything works offline. Kayf is an educational reference. Always follow the manufacturer's manual and a qualified technician for repairs.