Comparison

Blynk IoT vs Fluid Mechanics Toolbox

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

Head to head
About

Blynk IoT

Build custom IoT apps without coding using a drag-and-drop interface. Manage devices, visualize data, and send real-time alerts. Supports over 400 hardware boards and offers secure, scalable cloud infrastructure.

Highlights
  • Drag-and-drop IoT app builder
  • Device management and control
  • Sensor data visualization
  • OTA firmware updates
  • Real-time alerts and notifications
  • Support for 400+ hardware boards
  • Secure cloud infrastructure
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

About

Fluid Mechanics Toolbox

Features
Read full description

Fluid Mechanics Toolbox is an offline engineering calculator for fluid mechanics, hydraulics, pipe flow, pumps, open channels, weirs, and unit conversion. Designed for engineers, students, designers, and field technicians, the app helps you perform common fluid and hydraulic screening calculations quickly without spreadsheets, accounts, ads, subscriptions, or internet access. Key features: • Pipe flow and pressure drop calculations • Darcy-Weisbach, Hazen-Williams, Manning and Bernoulli tools • Reynolds number, Froude number and other dimensionless numbers • Pump power, efficiency and NPSH calculations • Open channel, weir, orifice and Venturi calculations • SI and USCS unit systems • Offline unit converter • Built-in engineering reference tables • Local project workspace and favorites • Copy calculation results • Light mode, dark mode and system appearance • English and Simplified Chinese interface The app is built for one-time paid download use. No subscription, no ads, no login and no server connection are required. All calculations run offline on device. Disclaimer: This app is intended for learning, estimation, preliminary engineering screening and technical reference only. Results are based on user inputs and built-in formulas. Users are responsible for verifying results against applicable standards, project requirements, vendor data and professional engineering judgment before use in real projects.

Screenshots

Blynk IoT4 screens
Fluid Mechanics Toolbox4 screens

Verdict

The call

The clearest difference is price: Blynk IoT at Free against Fluid Mechanics Toolbox's $3.99. Fluid Mechanics Toolbox's advantage is in-app purchases (none vs 7). On ads, device support and iOS requirement 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

Blynk IoT is free to download; Fluid Mechanics Toolbox costs $3.99 up front. Blynk IoT sells 7 in-app purchases, starting at $6.99 per month. Fluid Mechanics Toolbox asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Blynk IoT versus Fluid Mechanics Toolbox: the parameters behind the verdict, then further details
ParameterBlynk IoTFluid Mechanics Toolbox
PriceFree — better$3.99
Rating4.5 (830 ratings) — better—
Positive reviews42.0% of reviews—
Number of ratings830 — better—
Update frequencyMonthly—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS18.617.6 — better
Further details — not scored
Size86 MB2 MB
Age rating4+4+
DeveloperBlynk Technologies润强 何

Bugs and 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

Fluid Mechanics Toolbox

Not enough reviews yet to summarise bugs or requests.

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
None

Fluid Mechanics Toolbox

No in-app purchases

Questions

Is Blynk IoT free?
Blynk IoT is free to download, with in-app purchases available.
Is Fluid Mechanics Toolbox free?
Fluid Mechanics Toolbox costs $3.99, with no in-app purchases.
Do Blynk IoT or Fluid Mechanics Toolbox have ads?
Neither Blynk IoT nor Fluid Mechanics Toolbox shows ads.

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