# BlueGrays - Learn Electronics — Arduino, ESP32 & IoT Projects > Interactive electronics learning platform with projects, component catalog, and inventory. (iPhone/iPad app by Yunus Emre Eke.) - Source: https://appshunter.io/ios/app/bluegrays-learn-electronics/id6502332602 (this page in markdown: same URL + `.md`) - Developer: [Yunus Emre Eke](https://appshunter.io/developer/1713998736) - Category: Education, Developer Tools - Price: Free with in-app purchases - Rating: 4.36/5 from 11 App Store ratings · 14 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 51 MB - Languages: English, French, German, Italian, Spanish, Turkish - Released: 2024-05-28 - Data updated: 2026-06-24 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/bluegrays-learn-electronics/id6502332602/reviews.md ## What is BlueGrays? Learning electronics has never been this easy and fun with BlueGrays! Start with free projects right away, and unlock all content with Premium when you're ready. Whether you're a student or a hobbyist, BlueGrays gives you everything you need. — START FOR FREE — • Begin learning electronics with curated starter projects • Explore basic components and their specifications • Try the app and see if it's right for you — EXPLORE PROJECTS (Premium) — • Unlimited access to Arduino, ESP32, ESP8266 and IoT projects • Detailed circuit diagrams, code snippets, and video tutorials for each project • See required components and add missing ones to your inventory • Rate projects and save your favorites • Track your completed projects — COMPONENT CATALOG (Premium) — • Full access to extensive electronic component database • Detailed specifications and use cases • Filter, sort, and easily find what you need • Add components directly to your inventory — MY WORKSHOP - PERSONAL INVENTORY (Premium) — • Track the components you own • Add quantities, notes, and custom names • Check for missing components before starting a project • Edit and update your inventory anytime — BADGES & LEVELS — • Earn achievement badges as you learn • Reach Bronze, Silver, Gold, Platinum, and Diamond tiers • Track your progress across categories • Stay motivated with gamified learning! — MORE FEATURES — • Push notifications for new projects • Multi-language support (TR, EN, DE, ES, FR, IT) • Favorites and completed projects list • Personal profile and progress tracking BlueGrays is built for the maker and electronics community. Download now and start your electronics journey for free! — 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/ ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Premium (Monthly) | $2.99 | per month | | Premium (Yearly) | $11.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 5x Aylık Eğitimci Paketi | $12.99 | one-time | | 10x Aylık Eğitimci Paketi | $23.99 | one-time | | 10x Yıllık Eğitimci Paketi | $101.99 | one-time | | 5x Yıllık Eğitimci Paketi | $53.99 | one-time | ## Recent user reviews (10 of 14) All indexed reviews: https://appshunter.io/ios/app/bluegrays-learn-electronics/id6502332602/reviews.md ### 1/5 — Yararsız *2026-03-29, version 2.3.0* Bu uygulama yerine farklı sitelerden daha detaylı bir şekilde yararlanıla bilir uygulama içeriği çok boş ### 5/5 — Süper!! *2026-03-22, version 2.2.2* Arduino hakkında o kadar uygulama denedim ancak bu kadar profunu görmedim. Çok faydalı olmuş emeğinize sağlık… ### 5/5 — Helal be *2026-03-15, version 2.1.3* Uygulama çok iyi başlangıç için biraz daha fazla ücretsiz proje olursa daha iyi olur ama zaten paralı versyonda çok ucuz ### 4/5 — Kumsar Şenol *2026-03-14, version 2.1.3* Sorun Çözüldü . Başarılar diliyorum ### 5/5 — Başarılı *2026-03-13, version 2.1.3* Arduino ve ESP32 öğrenmek için çok güzel bir uygulama. Projeler ve devre şemaları oldukça faydalı. Tavsiye ederim. ### 2/5 — . *2026-03-11, version 2.1.1* Ücret ödemediğiniz sürece asıl önemli olan özelliklere erişiminiz yok ücretsiz planda sadece led yakma gibi basit çalışmaları yapabiliyorsunuz ayrıca uygulamayı indirme sebebim olan atölyem özelliğide ücretliymiş en azından deneme sürümü olabilirdi ve uygulamada gezinebilmek için bile kayıt istiyor en azından gezinmek için üyelik gerekmese iyi olurdu ### 1/5 — Uygulama içi satın alma *2026-03-11, version 2.1.1* Basit led yakma projeleri (5-10 adet) haricinde uygulamada her şey ücret istiyor. Biraz kullanıma izin verilmeli. 2 led yakmayı gösteriyor diye uygulamayı güzel ya da kötü yorumlayamayız. En azından birkaç deneme hakkı ya da deneme süresi verilmeli. ### 5/5 — Başarılı *2026-03-08, version 2.1.1* Uygulama çok başarılı , bir üniversite öğrencisi olarak aradığım şeyleri bulmamı sağladını söyleyebilirim. Özellikle tüm üniversite öğrencilerine önerdiğimi , bitirme projesi süreçlerinizde sizlere yardımcı olacağının altını çizerim. ### 5/5 — Hesap askıda kodlar gözükmüyor *2025-12-14, version 1.2.1* Uygulama çok ama çok iyi fakat hesap askıya alındığı için kodlar gözükmüyor lütfen acilen çözülsün ### 1/5 — All the accounts are suspended *2025-12-13* You can’t do anything with this stupid app. All the accounts are suspended so you have absolutely no access to the codes. ## Frequently asked questions about BlueGrays ### What is BlueGrays? BlueGrays is an educational app designed to help users learn electronics through interactive projects, a comprehensive component catalog, and personal inventory tracking. It offers both free starter projects and premium access to advanced content. ### How does BlueGrays' learning methodology work? BlueGrays uses a project-based learning approach, providing detailed circuit diagrams, code snippets, and video tutorials for various electronics projects. It also incorporates gamification with badges and levels to track progress and maintain motivation. ### What are the subscription options for BlueGrays Premium? BlueGrays Premium offers two subscription plans: a monthly plan for $2.99 and a yearly plan for $11.99. These plans unlock unlimited access to all projects, the full component catalog, and the My Workshop inventory feature. ### Can I cancel my BlueGrays Premium subscription? Yes, you can manage and cancel your subscription at any time by going to Settings > Apple ID > Subscriptions after purchase. Subscriptions must be cancelled at least 24 hours before the end of the current period to avoid automatic renewal. ### Does BlueGrays have ads? Yes, BlueGrays contains advertisements. As a free app with optional in-app purchases for premium features, advertisements are displayed to support its continued development and availability. ### What devices is BlueGrays available on? BlueGrays is currently supported on iPhones and iPods. It is rated for ages 4 and up, making it suitable for a wide range of young learners and hobbyists. ### How often is BlueGrays updated? The latest version of BlueGrays is 2.2.3, and it was last updated on March 25, 2026. This indicates a commitment to regular updates and feature enhancements for users. ### What languages does BlueGrays support? BlueGrays offers multi-language support, including Turkish (TR), English (EN), German (DE), Spanish (ES), French (FR), and Italian (IT). This broad language availability makes it accessible to a global audience. ## Version history (last 5 releases) ### 2.4.2 — 2026-06-18 Bug fixes and performance improvements have been made. We regularly update BlueGrays to make your experience smoother. ### 2.4.1 — 2026-06-01 Bug fixes and performance improvements have been made. We regularly update BlueGrays to make your experience smoother. ### 2.4.0 — 2026-05-07 Bug fixes and performance improvements have been made. We regularly update BlueGrays to make your experience smoother. ### 2.2.3 — 2026-03-25 Bug fixes and performance improvements have been made. We regularly update BlueGrays to make your experience smoother. ### 2.2.2 — 2026-03-19 Bug fixes and performance improvements have been made. We regularly update BlueGrays to make your experience smoother. ## Apps similar to BlueGrays | App | Rating | Price | Category | | --- | --- | --- | --- | | [Arduino Programming Tutorial](https://appshunter.io/ios/app/arduino-programming-tutorial/id6446804186) | 4.3 (7) | Free | Education | | [Arduino Programming Pro](https://appshunter.io/ios/app/arduino-programming-pro/id6447102673) | — | $4.99 | Education | | [Workshop for NodeMCU](https://appshunter.io/ios/app/workshop-for-nodemcu/id1643891852) | — | Free | Education | | [Workshop for Arduino](https://appshunter.io/ios/app/workshop-for-arduino/id1638636973) | 5.0 (1) | Free | Education | | [C++ Programming Tutorial](https://appshunter.io/ios/app/c-plus-plus-programming-tutorial/id6738318242) | — | Free | Education | | [555 Timer & Oscillators Guide](https://appshunter.io/ios/app/555-timer-and-oscillators-guide/id6504487994) | — | Free | Education | ## More apps by Yunus Emre Eke - [El İşi Dünyası](https://appshunter.io/ios/app/el-isi-dunyas/id6470683720) - [Cardenix: AI Card Scanner](https://appshunter.io/ios/app/cardenix-ai-card-scanner/id6760647627) - [Rn Teknoloji](https://appshunter.io/ios/app/rn-teknoloji/id6762559630) All apps by Yunus Emre Eke: https://appshunter.io/developer/1713998736 ## Related topics [arduino programming tutorial](https://appshunter.io/ios/topics/arduino-programming-tutorial) · [electronics learning](https://appshunter.io/ios/topics/electronics-learning) · [electronics learn](https://appshunter.io/ios/topics/electronics-learn) · [electronics education](https://appshunter.io/ios/topics/electronics-education) · [diy electronics projects app](https://appshunter.io/ios/topics/diy-electronics-projects-app) · [electronics components](https://appshunter.io/ios/topics/electronics-components) · [arduino](https://appshunter.io/ios/topics/arduino) · [arduum](https://appshunter.io/ios/topics/arduum) · [omicron electronics gmbh](https://appshunter.io/ios/topics/omicron-electronics-gmbh) · [sophos electronics inc](https://appshunter.io/ios/topics/sophos-electronics-inc) · [arduinodroid](https://appshunter.io/ios/topics/arduinodroid) · [electronics project app](https://appshunter.io/ios/topics/electronics-project-app) · [nexivo by kgp electronics gmbh](https://appshunter.io/ios/topics/nexivo-by-kgp-electronics-gmbh) · [esp32 kit](https://appshunter.io/ios/topics/esp32-kit) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-24.*