Blynk IoT 4+

No-code app builder + platform

Blynk Inc

    • 4.5 • 511 Ratings
    • Free
    • Offers In-App Purchases

iPhone Screenshots


Trusted by over 1 million IoT developers worldwide, Blynk lets you build and customize beautiful, feature-rich apps without writing a single line of code.
Blynk solves IoT complexity at every stage with easy workflows for end-user device activation, WiFi provisioning, seamless OTA firmware updates, enterprise-grade security, and much more!

⊲ Not Just an App...

Blynk is an award-winning low-code IoT platform that supports IoT at any scale—from personal prototypes to millions of connected devices in production environments.

2024 Leader: IoT Platforms (G2)
2024 High Performer: IoT Management (G2)
2024 Momentum Leader: IoT Development Tools (G2)

Designed, developed, tested, and continuously maintained, Blynk provides the building blocks of a fully integrated cloud IoT platform software solution—loved by customers and their end-users around the world!

⊲ Here’s What You Get When You Sign Up:

Blynk.Apps: Drag-n-drop IoT app builder to build and brand feature-rich mobile apps in minutes and instantly manage devices, users, and data remotely.
Blynk.Console: A powerful web portal to manage devices, users, and organizations, perform OTA firmware updates, and handle other important business functions.
Blynk.Cloud: Cloud infrastructure needed to securely host, scale, and monitor your IoT solutions. Receive, store, and process data in real-time or at intervals. Connect to your other systems via APIs. Private server options are available.

⊲ Secure, Scalable Enterprise-Grade Infrastructure

Processing over 180 billion hardware messages monthly, Blynk provides secure, end-to-end encryption between the cloud, apps, and devices with 24/7 incident monitoring, ensuring you don’t have to worry about security.

⊲ Robust Hardware Compatibility

Supporting over 400 hardware development boards—including ESP32, Arduino, Raspberry Pi, Seeed, Particle, SparkFun, Blues, Adafruit, Texas Instruments, and more—Blynk makes it easy to connect your devices to the cloud using WiFi, Ethernet, Cellular (GSM, 2G, 3G, 4G, LTE), LoRaWAN, HTTPs, or MQTT.

⊲ Flexible Connection Options

Blynk Library: Pre-configured C++ library for low-latency, bi-directional communication.
Blynk.Edgent: Advanced features with less code for data exchange, WiFi provisioning, OTA firmware updates, and API access to apps and cloud.
Blynk.NCP: High-quality network co-processor integration for dual MCU architecture.
HTTP(s) API: Standard protocol to securely communicate and transfer data.
MQTT API: Secure, versatile two-way communication for building MQTT dashboards or panels.

⊲ What an IoT Developer Can Do with Blynk:

• Easy Device Activation
• Device WiFi Provisioning
• Sensor Data Visualization
• Shared Access to Devices
• Data Analytics
• Remote Device Control
• Asset Tracking
• Firmware Over-the-Air (OTA) Updates
• Multi-Device Management with a Single App
• Real-Time Alerts: Send and receive push and email notifications.
• Automations: Create scenarios for one or multiple devices based on various triggers.
• Manage Multi-Level Organizations and Access to Devices
• Voice Assistant Integration: Interact with devices using Amazon Alexa and Google Home.

To use the Blynk IoT app, you must agree to our Terms of Use -

What’s New

Version 1.49

- New look for notifications and alerts

Ratings and Reviews

4.5 out of 5
511 Ratings

511 Ratings

brianjacobfr ,

Greatest app out there for all your IoT projects

I tried all major apps for IoT projects around my house and Blynk 2.0 is without a doubt the best solution there is.
Whether you use Arduino, ESP32 or ESP8266 boards, setting up templates is super intuitive, quick and easy with the new Blynk 2.0 app. I run many home made 3D printed appliances (dog feeding machines, dog water bucket level sensor, train set for my son, custom lights, etc.) and I love having all my projects readily controllable from my phone, in one app! That’s just perfect!
I cannot recommend anything other than Blynk when it comes to any of you IoT project.

Developer Response ,

Thank you so much for the review and choosing Blynk to implement your ideas! ,

Too limited with maker subscription

The app itself looks really good though I did even try and use it. After seeing most widgets showed they required the Pro level I thought I would try the Maker level subscription hoping they would be enabled but still have a lower user limit. But sadly several were not. Didn’t look like it would be a too big a deal until I noticed pages were not available. Well that’s a show stopper for me. I don’t understand your business model. Makers will not be converting to Pros, it’s a complete different market and far too expensive for hobbyists/makers. So you have limited the functionality for makers who will be the ones to come up with creative applications and show off your product that might in turn attract users at the Pro level. Someone is either going to need a lot of users or they are not, it’s not going to be the restrictions, beyond the user limit, that motivates them to the next tier. So I cancelled my one month subscription a couple of minutes after seeing the lack of pages and I will find a different solution. Let me know if you come to your senses and drop these pointless limits.

forsalebypwner ,

Really disappointing pricing options

I was a huge fan and advocate of Blynk before their new version. Even today it is the only app of its kind, where you can create your own interfaces for microcontrollers on your phone with ease. I would have been happy to pay a couple bucks a month to continue to use it, but these new prices are completely unjustifiable. In addition, the free plan is so absurdly limited that it’s completely useless without upgrading.

Fortunately, it is still possible to use the legacy app, provided that you self-host your own Blynk server. I’d recommend that others try that out, it’s not as daunting as it may sound (check out hortio/docker-blynk on GitHub). You can use *all* of the widgets included with the old app, and also give yourself as many points as you need, so no in-app purchases.

To the Blynk team: reconsider this change, and think about what made the original such a success.

App Privacy

The developer, Blynk Inc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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