# Blynk IoT vs Bluetooth Serial Connect

The clearest difference is rating: Blynk IoT at 4.5 against Bluetooth Serial Connect's 3.7. Blynk IoT also leads on review sentiment (42% vs 0%) and ads (none vs shown). Bluetooth Serial Connect's advantage is in-app purchases (none vs 7) and iOS requirement (16.2 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Blynk IoT sells 7 in-app purchases, starting at $6.99 per month. Bluetooth Serial Connect asks for nothing beyond the download.

Blynk IoT holds the better App Store score, 4.5 against 3.7. That said, the two scores are not equally well evidenced: Blynk IoT has 819 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 42% of Blynk IoT's written reviews are positive against 0% of Bluetooth Serial Connect's.

Blynk IoT ships an update monthly, Bluetooth Serial Connect every 10 months. The most recent releases landed on September 22, 2026 and July 21, 2026 respectively.

## The numbers

| Metric | Blynk IoT | Bluetooth Serial Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (819 ratings)](https://appshunter.io/ios/app/blynk-iot/id1559317868/reviews)** | [3.7 (7 ratings)](https://appshunter.io/ios/app/bluetooth-serial-connect/id6449396821/reviews) |
| Number of ratings | **819** | 7 |
| Positive reviews | **42.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 10 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 83 MB | 24 MB |
| Requires iOS | 18.0 | **16.2** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Blynk Technologies](https://appshunter.io/developer/808760484) | [Henry Abrahamsen](https://appshunter.io/developer/1544660671) |

## What reviewers say

### Blynk IoT

[App page](https://appshunter.io/ios/app/blynk-iot/id1559317868)

Build custom IoT apps without coding using a drag-and-drop interface. Manage devices, users, and data remotely with a powerful web console and scalable cloud infrastructure. Supports over 400 hardware boards and various connection options.

**Highlights:** Drag-n-drop IoT app builder, Device and user management, OTA firmware updates, Secure cloud infrastructure, Hardware compatibility (400+ boards), Real-time alerts and automations

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blynk MAKER - Monthly | $6.99 | per month |
| Blynk Starter - Monthly | $29.00 | per month |
| Blynk PRO (40 users) Monthly | $48.99 | per month |
| Blynk MAKER - Yearly | $59.99 | per year |
| Blynk PRO (100 users) Monthly | $98.99 | per month |
| Blynk PRO (50 users) Monthly | $99.00 | per month |
| Blynk PRO (500 users) Monthly | $299.99 | per month |

**What reviewers like**

- 🚀 Easy to use
- 🚀 Powerful IoT platform
- 🚀 Efficient for rapid prototyping
- 👍 Great for hobbyists and businesses
- 👍 Stable and reliable

**What reviewers complain about**

- 💰 Expensive subscription model
- 🐛 Unstable, crashes frequently
- 🤔 Confusing for beginners
- 🤔 Lacks flexibility compared to legacy version
- 🤔 Limited free features

**Reported bugs**

- Connectivity issues with devices
- Widgets not working as expected
- Account deletion without warning
- Incompatibility with older hardware

**Requested features**

- Dark mode option
- Bluetooth support
- Better documentation and tutorials
- Restore legacy app functionality
- Affordable pricing for hobbyists


### Bluetooth Serial Connect

[App page](https://appshunter.io/ios/app/bluetooth-serial-connect/id6449396821)

Control your Arduino projects with your phone. Design custom interfaces with buttons, joysticks, and displays to send and receive data via Bluetooth low-energy modules. An integrated library simplifies the connection process.

**Highlights:** Customizable control boards, Button and joystick inputs, Display integration, Bluetooth low-energy module support, Arduino library for easy integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Blynk IoT free?

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

### Is Bluetooth Serial Connect free?

Bluetooth Serial Connect is free to download, with no in-app purchases.

### Which has better reviews, Blynk IoT or Bluetooth Serial Connect?

Blynk IoT is rated higher. Blynk IoT averages 4.5 out of 5 from 819 ratings, while Bluetooth Serial Connect averages 3.7 from 7 ratings.

### Do Blynk IoT or Bluetooth Serial Connect have ads?

Bluetooth Serial Connect shows ads; Blynk IoT does not.

### Which is updated more often, Blynk IoT or Bluetooth Serial Connect?

Blynk IoT ships an update monthly, and Bluetooth Serial Connect every 10 months. Most recently, Blynk IoT was updated on September 22, 2026 and Bluetooth Serial Connect on July 21, 2026.

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