Comparison

VM208 vs Blynk IoT

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

VM208

Features
Read full description

The DIN rail WLAN Relay Card (VM208) by Velleman for Makers combines the strength of four robust relays that you can control by installing and using this app. In other words: this you will be able to remotely control any appliance in your electrical cabinet from anywhere in the world*! For your convenience, we also added both wired (RJ45 socket) and wireless connections (SMA plug) to the relay card. There is one digital input that lets you monitor the state of any device and there are two additional transistor outputs that allow you to control 6 devices in total. In case you need even more outputs, an additional module (VM208EX) can add another 8 relays. To top things off, we designed a compact DIN rail case that perfectly fits this versatile relay card. Once you’ve installed your relay card and connected it to your preferred appliance(s), you can install the app and scan your network to connect your app to your relay card. Tip: multiple relay cards, even the DIN-RAIL Extension Relay Card (VM208EX), can be connected to your app. To make a successful connection, you will simply need to select your relay card on the list and enter your credentials. After that, you will get an overview of all your relays or channels and you will be able to give them individual names. Each channel can now be controlled: you can turn it on or off, install a timer or pulse, schedule, and even send out an email notifications at specific events. Find more about the VM208 here: https://www.vellemanprojects.eu/products/view/?id=428342

About

Blynk IoT

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
Read full description

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 - https://blynk.io/tos

Screenshots

VM2083 screens
Blynk IoT4 screens

Verdict

The call

The clearest difference is in-app purchases: VM208 at none against Blynk IoT's 7. VM208 also leads on device support (3 vs 1) and iOS requirement (8.0 vs 18.0). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Blynk IoT sells 7 in-app purchases, starting at $6.99 per month. VM208 asks for nothing beyond the download.

Scorecard3 real differences · 7 level
VM208 versus Blynk IoT: the parameters behind the verdict, then further details
ParameterVM208Blynk IoT
PriceFreeFree
Rating—4.5 (823 ratings) — better
Positive reviews—42.0% of reviews
Number of ratings—823 — better
Update frequency—Monthly
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS8.0 — better18.0
Further details — not scored
Size28 MB86 MB
Age rating4+4+
DeveloperVelleman nvBlynk Technologies

Bugs and requests

VM208

Not enough reviews yet to summarise bugs or requests.

Blynk IoT

Reported bugs

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

Requested features

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

In-app purchases

None

VM208

No in-app purchases

7 purchases

Blynk IoT

Subscriptions7
  • Blynk MAKER - Monthly$6.991 Month
  • Blynk Starter - Monthly$29.001 Month
  • Blynk PRO (40 users) Monthly$48.991 Month
Show 4 more
  • Blynk MAKER - Yearly$59.991 Year
  • Blynk PRO (100 users) Monthly$98.991 Month
  • Blynk PRO (50 users) Monthly$99.001 Month
  • Blynk PRO (500 users) Monthly$299.991 Month

Questions

Is VM208 free?
VM208 is free to download, with no in-app purchases.
Is Blynk IoT free?
Blynk IoT is free to download, with in-app purchases available.
Do VM208 or Blynk IoT have ads?
Neither VM208 nor Blynk IoT shows ads.

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