# BlueGrays vs C++ Programming Pro

The clearest difference is review sentiment: BlueGrays at 64% against C++ Programming Pro's 0%. BlueGrays also leads on price (Free vs $4.99) and update cadence (every 4 days vs every 2 months). C++ Programming Pro's advantage is in-app purchases (none vs 10). On ads and device support there is nothing between them.

BlueGrays is free to download; C++ Programming Pro costs $4.99 up front. BlueGrays sells 10 in-app purchases, starting at $2.99 per month. C++ Programming Pro asks for nothing beyond the download.

BlueGrays ships an update every 4 days, C++ Programming Pro every 2 months. The most recent releases landed on November 8, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | BlueGrays | C++ Programming Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.2 (14 ratings)](https://appshunter.io/ios/app/bluegrays-arduino-and-esp32/id6502332602/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | **64.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 months |
| Monetization | **Freemium** | Paid |
| Size | 57 MB | 13 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Yunus Emre Eke](https://appshunter.io/developer/1713998736) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### BlueGrays

[App page](https://appshunter.io/ios/app/bluegrays-arduino-and-esp32/id6502332602)

Explore over 200 electronics projects with code, diagrams, and video guides. Build custom IoT devices controlled via your phone. Features include component guides, calculators, and pinout maps.

**Highlights:** 200+ Arduino, ESP32, Pico projects, Ready-to-upload code and circuit diagrams, IoT device control from phone, 125+ component guides, 18 electronics calculators, Pinout maps for boards, Project Finder based on owned parts

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $2.99 | per month |
| Premium (Yearly) | $11.99 | per year |
| Premium (Yearly) | $19.99 | per year |
| Lifetime Premium · Special | $49.99 | one-time |
| Lifetime Premium | $79.99 | one-time |
| 50x Monthly Educator Pack | $219.99 | one-time |
| 5x Lifetime Educator Pack | $399.99 | one-time |
| 10x Lifetime Educator Pack | $749.99 | one-time |
| 50x Yearly Educator Pack | $889.99 | one-time |
| 50x Lifetime Educator Pack | $949.99 | one-time |


### C++ Programming Pro

[App page](https://appshunter.io/ios/app/c-plus-plus-programming-pro/id6738890071)

Master C++ programming with interactive lessons, quizzes, and comprehensive code examples. This app caters to both beginners and experienced developers, offering a structured learning path and a handy reference tool.

**Highlights:** Step-by-step C++ lessons, Interactive quizzes with 200+ questions, Code examples and reference, Favorites and full-text search (Pro), Covers all core and advanced C++ topics, Available in 10 languages

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BlueGrays free?

BlueGrays is free to download, with in-app purchases available.

### Is C++ Programming Pro free?

C++ Programming Pro costs $4.99, with no in-app purchases.

### Do BlueGrays or C++ Programming Pro have ads?

Neither BlueGrays nor C++ Programming Pro shows ads.

### Which is updated more often, BlueGrays or C++ Programming Pro?

BlueGrays ships an update every 4 days, and C++ Programming Pro every 2 months. Most recently, BlueGrays was updated on November 8, 2026 and C++ Programming Pro on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*