Comparison

BlueGrays vs Microelectronics

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

BlueGrays

Learn electronics with interactive projects, a component catalog, and personal inventory management. Start with free projects and unlock full access to Arduino, ESP32, and IoT content with a premium subscription. Gamified learning with badges and levels keeps you motivated.

Highlights
  • Free starter projects
  • Unlimited Arduino/ESP32/IoT projects
  • Detailed circuit diagrams and code
  • Component catalog with specifications
  • Personal inventory management
  • Gamified learning with badges and levels
  • Multi-language support
Features
Read full description

160+ Arduino, ESP32 and Raspberry Pi Pico projects, each with ready-to-upload code, a circuit diagram, the parts list and a video walkthrough. Tell BlueGrays which parts you own and it shows the projects you can build right now. Plus 125+ component guides, 18 electronics calculators and pinout maps for the boards. PROJECTS • Arduino projects, ESP32 projects and Raspberry Pi Pico projects in one place • Step-by-step guide: parts, circuit, code and testing • Wokwi simulation videos in new projects: watch the circuit run before you build it • Rate projects, save favorites and track the ones you complete WHAT CAN I BUILD WITH MY PARTS • Workshop: save the components you own, with quantities • See the projects you can build with your parts and the ones missing the fewest • Project Finder: answer a few questions and get an Arduino, ESP32 or Pico project that fits you 18 ELECTRONICS TOOLS • Resistor color code and SMD code decoder • Ohm's law, LED resistor, series/parallel resistor and voltage divider calculators • 555 timer, op-amp gain, RC time constant and battery life • Capacitor code, inductor code, series/parallel capacitors and standard values • LED voltages, transistor table and logic gates • Save your calculations and share the results PINOUT • Pin maps for Arduino, ESP32 and Raspberry Pi Pico boards • Tap a pin to see what it does and what it is good for COMPONENT CATALOG • 125+ components: sensors, modules, motors, displays and more • Specs, use cases and the projects each component appears in • Add components to your Workshop straight from their page BADGES AND LEVELS • Earn badges as you learn and reach Bronze, Silver, Gold, Platinum and Diamond tiers FOR EDUCATORS • Bulk Premium code packs of 5 and 10 for your class MORE • Blog: step-by-step electronics guides on bluegrays.com • 6 languages: English, Turkish, German, Spanish, French, Italian PREMIUM Starter projects and the basic tools are open to everyone. BlueGrays Premium unlocks all projects, the full component catalog, Workshop, every tool and the pinout maps. SUBSCRIPTION INFORMATION • BlueGrays Premium unlocks unlimited access to all projects, the full component catalog, and the My Workshop inventory feature. • Payment is charged to your Apple ID account upon confirmation of purchase. • Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. • You can manage and cancel your subscription in Settings > Apple ID > Subscriptions after purchase. • Privacy Policy: https://bluegrays.com/privacy/ • Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Microelectronics

Test your knowledge of circuits, semiconductors, and advanced microelectronic concepts with a vast quiz. Features dynamic difficulty, detailed explanations, and progress tracking to help you master the subject. Ideal for students, engineers, and enthusiasts.

Highlights
  • Thousands of questions
  • Dynamic difficulty levels
  • Detailed explanations
  • Progress tracking
  • Regular updates
  • Covers digital and analog circuits
Features
Read full description

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Become a Microelectronics Expert! Dive deep into the world of microelectronics with our engaging quiz app! Whether you're a student, an engineer, or an enthusiast, this app is designed to sharpen your knowledge and challenge your expertise in circuits, semiconductors, and cutting-edge microelectronics technology. Key Features: Thousands of Questions: Covering topics like digital electronics, analog circuits, semiconductors, ICs, and more! Dynamic Difficulty Levels: Start easy and climb to expert-level challenges. Detailed Explanations: Learn as you go with explanations for every answer. Progress Tracking: Monitor your performance and identify areas for improvement. Regular Updates: Stay updated with the latest in microelectronics trends and concepts. Whether you’re preparing for exams, brushing up on fundamentals, or testing your knowledge for fun, this app is the ultimate companion for all things microelectronics. Download now and electrify your learning journey!

Screenshots

BlueGrays4 screens
Microelectronics4 screens

Verdict

The call

The clearest difference is rating: Microelectronics at 5.0 against BlueGrays's 4.2. BlueGrays's advantage is update cadence (every 4 days vs every 3 months) and ratings volume (14 vs 1). On price, ads, in-app purchases and monetization model 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. BlueGrays sells 8 in-app purchases, starting at $2.99 per month and Microelectronics sells 6 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Microelectronics holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: BlueGrays has 14 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

BlueGrays ships an update every 4 days, Microelectronics every 3 months. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

Scorecard4 real differences · 6 level
BlueGrays versus Microelectronics: the parameters behind the verdict, then further details
ParameterBlueGraysMicroelectronics
PriceFreeFree
Rating4.2 (14 ratings)5.0 (1 ratings) — better
Positive reviews64.3% of reviews—
Number of ratings14 — better1
Update frequencyEvery 4 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size52 MB18 MB
Age rating4+4+
DeveloperYunus Emre EkeForwa Elade Wunde

Customer experience

BlueGrays

All ratings14 ratings
Positive78.6%
Neutral0.0%
Negative21.4%
Written reviews14 reviews
Positive64.3%
Neutral0.0%
Negative35.7%

Microelectronics

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

8 purchases

BlueGrays

Subscriptions4
  • Premium (Monthly)$2.991 Month
  • Premium (Monthly)$4.991 Month
  • Premium (Yearly)$11.991 Year
Show 1 more
  • Premium (Yearly)$19.991 Year
One-time4
  • 5x Aylık Eğitimci Paketi$24.99
  • 10x Aylık Eğitimci Paketi$39.99
  • 5x Yıllık Eğitimci Paketi$99.99
Show 1 more
  • 10x Yıllık Eğitimci Paketi$159.99
6 purchases

Microelectronics

Subscriptions3
  • 1 Month$9.991 Month
  • 6 months$19.996 Months
  • 1 Year$29.991 Year
One-time3
  • 1500$0.99
  • 3500$1.99
  • 9000$3.99

Questions

Is BlueGrays free?
BlueGrays is free to download, with in-app purchases available.
Is Microelectronics free?
Microelectronics is free to download, with in-app purchases available.
Which has better reviews, BlueGrays or Microelectronics?
Microelectronics is rated higher. BlueGrays averages 4.2 out of 5 from 14 ratings, while Microelectronics averages 5.0 from 1 ratings.
Do BlueGrays or Microelectronics have ads?
Neither BlueGrays nor Microelectronics shows ads.
Which is updated more often, BlueGrays or Microelectronics?
BlueGrays ships an update every 4 days, and Microelectronics every 3 months. Most recently, BlueGrays was updated on October 25, 2026 and Microelectronics on October 21, 2026.

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