BlueGrays vs AVR Projects
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
AVR Projects
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AVR Projects is an app for those who are learning AVR Microcontroller programming, and it contains demo projects for makers, electronic enthusiast and engineering students. It focuses on ATmega328p, which is a microcontroller IC on Arduino Uno, and Atmel (Microchip) Studio IDE. * Learn AVR Microcontroller Programming with example codes in Embedded written on Atmel Studio IDE, Proteus simulation files, circuit diagrams and descriptions. * Easy to access sensors and ICs’s datasheets. More projects will be added soon!
Screenshots
Verdict
The clearest difference is ads: AVR Projects at none against BlueGrays's shown. AVR Projects also leads on update cadence (daily vs every 6 days). BlueGrays's advantage is iOS requirement (15.1 vs 17.0). On price, in-app purchases and device support 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
Both are free to download. BlueGrays sells 6 in-app purchases, starting at $2.99 per month and AVR Projects sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
BlueGrays ships an update every 6 days, AVR Projects daily. The most recent releases landed on September 17, 2026 and September 26, 2026 respectively.
| Parameter | BlueGrays | AVR Projects |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (11 ratings) — better | — |
| Positive reviews | 64.3% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 6 days | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 51 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Yunus Emre Eke | Zaw Win Myat |
In-app purchases
BlueGrays
- Premium (Monthly)$2.991 Month
- Premium (Yearly)$11.991 Year
- 5x Aylık Eğitimci Paketi$12.99
- 10x Aylık Eğitimci Paketi$23.99
- 5x Yıllık Eğitimci Paketi$53.99
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- 10x Yıllık Eğitimci Paketi$101.99
AVR Projects
- R2R Ladder DAC$0.99
- Sawtooth Waveform$0.99
- Triangular Waveform$0.99
Show 7 moreShow fewer
- Sine Waveform$0.99
- Ammeter AVR$0.99
- 4x3 Matrix Keypad$0.99
- Ohm Meter AVR$0.99
- Voltmeter AVR$0.99
- TM1637 Interfacing with AVR$0.99
- Graphic LCD Interfacing$0.99
Questions
Is BlueGrays free?
Is AVR Projects free?
Do BlueGrays or AVR Projects have ads?
Which is updated more often, BlueGrays or AVR Projects?
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