This app simulates a computer's CPU, illustrating the fetch-decode-execute cycle and register changes. It includes an IDE for assembly code development and allows users to save and share simulations.






216+ iOS apps & games curated and reviewed
If you already know CPU Simulator, this is the deeper bench. 216+ cpu simulator apps and games for iPhone, all reviewed and ranked by user rating, recency, and download trend as of May 2026.






This app simulates a computer's CPU, illustrating the fetch-decode-execute cycle and register changes. It includes an IDE for assembly code development and allows users to save and share simulations.






Simulate a complete 32-bit mobile system, including CPU units and memory. Write and debug assembly code directly on the simulated hardware to understand its inner workings.




Experience the 6502 microprocessor, the heart of 1970s home computers. This app emulates the 8-bit processor with an assembler and programming puzzles. Learn to code on a minimalist interface and discover how early computing was done.


Learn to build a gaming PC virtually without the hassle of physical components. This simulation game offers realistic component visuals and placement, making the PC building process fun and educational.


Experience realistic flight simulation with a wide variety of modern turboprop aircraft. Engage in training missions, complete diverse objectives, and explore detailed cockpits. Enjoy features like ground vehicle driving, cargo operations, and varied weather conditions.


Experience realistic helicopter flight with a vast open world to explore. Pilot over 50 vehicles including helicopters, planes, cars, and boats. Engage in thrilling missions and dynamic weather conditions for an immersive simulation.


Experience realistic driving with a collection of Mercedes AMG cars. Explore diverse environments, customize your vehicles inside and out, and even walk around the game world as one of 11 characters. Enjoy speed driving and offroad adventures.


Experience realistic train driving with diverse routes and weather conditions. Accomplish scenarios to unlock new trains and routes, or customize your journey in quick mode. Features animated passengers and authentic station designs.


This free utility app provides detailed information about your device's hardware and software. It measures real CPU frequency, frequency reduction, and offers insights into your screen, battery, network, GPU, RAM, and sensors.


Experience PC-quality combat flight simulation on your mobile device. Engage in dogfights, bombing missions, or enjoy free flight with a vast selection of modern and legendary aircraft. Features detailed cockpits, real armament, and dynamic flight physics.


Experience the thrill of professional bus driving across the globe. Plan routes, manage passengers, and build your bus empire with realistic driving mechanics and dynamic environments. Explore diverse cities and landscapes while ensuring timely and safe passenger transport.


Experience a realistic driving simulator with an expansive open world and over 130 vehicles. Compete in races, upgrade your cars, and explore the city solo or online with other players. Earn currency to customize your vehicles, garages, and even purchase a house.


Experience a realistic 3D flight simulator with diverse aircraft, challenging missions, and free flight modes. Explore detailed cities and airports globally, customize flight conditions, and enjoy multiplayer options. Record and share your best flights.


Experience a highly realistic flight simulator with accurate physics and detailed 3D cockpits. Explore numerous airports and terrain, with options to expand scenery and aircraft through subscription and in-app purchases.


Plan your day, develop skills, and build a life that grows over time. Earn money, invest wisely, and automate tasks to achieve your goals. This idle simulation game lets you play your way, with short sessions offering significant rewards.


Assemble your own computer by buying components and putting them together. Learn how each part functions and how the entire system works in a first-person view. Test your creation and improve your assembly skills.


Experience a realistic flight simulation with a global map, detailed aircraft, and multiplayer capabilities. Plan your flights, navigate with authentic tools, and fly with or control air traffic in a dynamic environment.


Experience realistic flight simulation with interactive cockpits and detailed aircraft. Plan your routes, manage ground services, and enjoy dynamic weather and day/night cycles. This app offers an immersive flying experience for aviation enthusiasts.


Experience a comprehensive simulation with over 15 vehicles and large machinery. Complete diverse objectives across various environments like airports, construction sites, and dockyards. Explore a detailed open world with engaging tasks.


Experience a realistic flight simulator with global satellite imagery and a wide range of aircraft. Practice VFR, explore beautiful landscapes, or enjoy multiplayer flights with real-time weather and traffic.