Embedded Interview Q&A Prep vs Learning transistor
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Embedded Interview Q&A Prep
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Prepare smarter. Interview better. Get hired as an Embedded Engineer. This app is a complete Embedded Systems Interview Preparation Kit, designed for students, freshers, and working professionals targeting roles in Embedded Engineering, Firmware Development, and IoT. Whether you're preparing for your first embedded job or switching to a better role, this app gives you curated interview questions, clear explanations, and mock interview practice โ all in one place. What youโll learn โข Embedded C Programming โข Pointers, Memory, Bit Manipulation โข Microcontrollers (MCU) Fundamentals โข Registers, GPIO, Timers, ADC โข Interrupt Handling & ISR Design โข RTOS Concepts (Tasks, Scheduling, Semaphores) โข Communication Protocols (UART, SPI, I2C, CAN) โข Memory Systems (Stack, Heap, Flash, EEPROM) โข Debugging Tools (JTAG, SWD, GDB) โข Embedded Linux Basics (for advanced roles) Key Features - 300+ carefully selected interview Q&A - Topic-wise structured learning - Clear and concise explanations - Beginner to advanced coverage - AI-based mock interview practice (optional feature if enabled) - Offline access to questions - Clean and distraction-free UI Who is this app for? - Embedded Engineer aspirants - Electronics & ECE students - Firmware developers - IoT professionals - Interview preparation candidates Why this app? Most interview failures happen due to lack of structured preparation. This app gives you exactly what interviewers ask, organized in the right learning path โ from fundamentals to advanced concepts. Practice daily. Build confidence. Crack embedded interviews. Upcoming additions โข ARM architecture topics โข Advanced Embedded Linux โข IoT protocols (BLE, MQTT, LoRa) โข Safety standards (MISRA C, ISO26262) Start preparing today and take your Embedded Engineering career to the next level. Privacy Policy: https://rajendrac3.github.io/Embedded-legal/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Learning transistor
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How does a computer actually compute? Not metaphorically โ physically. Learning Transistor answers that question in 14 interactive screens, starting from a single transistor and ending at a working one-bit computer you can step through with your finger. Every screen is a live circuit. Current flows as moving dots, voltage glows on the wires, and every input is yours to flip. Nothing is a video, and nothing is a quiz โ you learn by turning things on and off and watching what the electrons do. THE JOURNEY - Meet Transistor Man โ the classic mental model of how a transistor keeps its collector current exactly 100 times the base current, and what happens when it can't - The transistor switch: how 9.4 mA of base current lights a 100 mA lamp - The NOT gate: how a resistor and a transistor turn voltage into logic โ and why "1" costs no current at all - NAND and NOR at the transistor level: series vs parallel, and why these two gates can build everything else - The symbol language: the D-shape, the pointed shape, and the little circle that flips every answer - Building with gates: AND from NANDs โ abstraction you can tap to open and see the transistors still working inside - The SR latch: two crossed gates that remember one bit after your finger leaves the screen - XOR and the half adder: the moment logic becomes arithmetic, and 1 + 1 becomes 10 - The finale: memory + adder + feedback + a STEP clock โ a one-bit computer, with every layer tappable all the way down to the silicon FREE TO START The first two screens โ Transistor Man and the transistor switch โ are free. A single purchase unlocks the rest of the journey. No subscriptions, no ads, no accounts, no data collection. Inspired by the classic figures of The Art of Electronics. Made for curious minds who want to know what is really happening inside the machine they are holding.
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Verdict
The clearest difference is iOS requirement: Learning transistor at 17.0 against Embedded Interview Q&A Prep's 26.2. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Embedded Interview Q&A Prep sells 3 in-app purchases, starting at $2.99 per month and Learning transistor sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Embedded Interview Q&A Prep | Learning transistor |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 26.2 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 23 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Rajendra Choudhary | Sungjun Kim |
In-app purchases
Embedded Interview Q&A Prep
- Embedded Premium Monthly$2.991 Month
- Embedded Premium Quarterly$4.993 Months
- Embedded Premium Yearly$14.991 Year
Learning transistor
- Full Access$4.99
Questions
Is Embedded Interview Q&A Prep free?
Is Learning transistor free?
Do Embedded Interview Q&A Prep or Learning transistor have ads?
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