Comparison

MicroBlue vs BE40 E6B

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

Head to head
About

MicroBlue

This app connects to microcontrollers via Bluetooth/BLE, offering a customizable interface for control and interaction. It supports various components like joysticks and buttons, streamlining hobbyist and professional projects.

Highlights
  • Bluetooth/BLE connectivity
  • Customizable control interface
  • D-pads, joysticks, buttons, sliders
  • Text input support
  • Works with Arduino and Raspberry Pi
  • Writable custom service communication
Features
Read full description

MicroBlue is a companion app for microcontroller projects. Connect to your board over Bluetooth Low Energy (BLE), control it from your phone, and see what it sends back. DRIVE Two halves, each a D-Pad, Joystick, Tank (one stick per side), Tilt (steer by tilting the phone), Panel or Console. Leaving the Drive screen or the app sends the stop position. Buttons, switches, sliders with your own min and max, steppers, color buttons and text fields. Each sends its value with an id you choose. DISPLAYS Show what your board sends: a Value with its unit, a Bar, an LED, or a Chart of the last 10, 30 or 60 seconds that draws up to 4 lines from values like x,y,z. CONSOLE AND RECORDING See every message sent and received. Record a session to a CSV file and open it in Google Sheets, Excel or Numbers, great for classroom experiments. LAYOUTS Save a layout for each project and switch between them. Share a layout with a whole class by QR code or link; students add it with Scan QR Code. A STEADY CONNECTION • A heartbeat lets your board's program stop safely when the phone goes out of range or the app closes (can be turned off in Settings) • Reconnects to your board automatically • Shows the signal strength • Choose what to send to and receive from on each board WORKS WITH Boards with built-in BLE or an HM-10 module, such as the Arduino UNO R4 WiFi, Arduino UNO R3 or UNO R4 Minima with an HM-10, Raspberry Pi Pico W (or Pico with an HM-10) and ESP32-S3. Messages use a simple format in both directions: [0x01] id [0x02] value [0x03]. Help in the app shows what each control sends. Requires iOS 16.4 or later. For assistance and more information, visit: https://snappyxo.io/microblue.

About

BE40 E6B

Read full description

BE40 E6B Flight Calculator Comprehensive utility application for BE40 series aircraft pilots featuring: • Refueling Calculator - Precise fuel distribution calculations - Digital fuel order generation - Multiple unit systems support • Take-Off Thrust Calculator - Real-time thrust calculations - Environmental conditions integration - System configuration support • Long Range Cruise Calculator - True Airspeed (TAS) calculations - Fuel flow optimization - GPS altitude integration • Aircraft Management - Multiple aircraft profiles - Customizable settings - Digital signature support Supports all BE40 variants: Diamond IA/IA+, Beechjet 400/400A, Hawker 400XP, Nextant 400XT/XTi Features offline functionality and professional PDF generation.

Screenshots

MicroBlue4 screens
BE40 E6B4 screens

Verdict

The call

The clearest difference is price: MicroBlue at Free against BE40 E6B's $24.99. BE40 E6B's advantage is update cadence (every 9 days vs every 5 months). On ads, in-app purchases, 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

MicroBlue is free to download; BE40 E6B costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

MicroBlue ships an update every 5 months, BE40 E6B every 9 days. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

Scorecard2 real differences · 7 level
MicroBlue versus BE40 E6B: the parameters behind the verdict, then further details
ParameterMicroBlueBE40 E6B
PriceFree — better$24.99
Rating4.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 5 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone
Requires iOS16.4 — better17.5
Further details — not scored
Size38 MB13 MB
Age rating4+4+
DeveloperMechanismic Inc.Stefan Genszky

In-app purchases

None

MicroBlue

No in-app purchases

None

BE40 E6B

No in-app purchases

Questions

Is MicroBlue free?
MicroBlue is free to download, with no in-app purchases.
Is BE40 E6B free?
BE40 E6B costs $24.99, with no in-app purchases.
Do MicroBlue or BE40 E6B have ads?
Neither MicroBlue nor BE40 E6B shows ads.
Which is updated more often, MicroBlue or BE40 E6B?
MicroBlue ships an update every 5 months, and BE40 E6B every 9 days. Most recently, MicroBlue was updated on November 12, 2026 and BE40 E6B on November 8, 2026.

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