Comparison

Ble2Serial vs ElectroCalc Pro

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

Head to head

About

Ble2Serial

Features

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The iOS portable devices will connect with the Bluetooth Low Energy (BLE) to serial port converter devices and exchange data with them bi-directional. The serial port includes RS-232 or RS-422 RS-485 interfaces. The user will test the APP with the SCADA, Robot, UAV, PLC, CNC or etc. with the BLE to serial port devices. The APP will be customized to meet the specific applications.

About

ElectroCalc Pro

Features

Read full description

ElectroCalc Pro is the essential utility for electronics engineers and hobbyists. Simplify your daily circuit calculations with this powerful tool. [Key Features] 1. Basic Electronics - LED Resistor Calculator - Voltage Divider Calculator (Vin, R1, R2, Vout) - LM317 Voltage Regulator Calculator 2. Power & Cables - Ohm's Law Calculator (Voltage, Current, Resistance, Power) - AWG (American Wire Gauge) Table & Conversion 3. Battery Tools - Battery Runtime Calculator - Battery Configuration Calculator (Series / Parallel) 4. PCB Tools - PCB Trace Width & Resistance Calculations

Screenshots

Ble2Serial3 screens

ElectroCalc Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: Ble2Serial at none against ElectroCalc Pro's 1. Ble2Serial also leads on ads (none vs shown). On price, update cadence, 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

Both are free to download. ElectroCalc Pro sells 1 one-off in-app purchase. Ble2Serial asks for nothing beyond the download.

UpkeepUpdate frequency

Ble2Serial ships an update every 4 weeks, ElectroCalc Pro every 2 months. The most recent releases landed on September 15, 2026 and September 23, 2026 respectively.

Scorecard2 real differences · 4 level

Ble2Serial versus ElectroCalc Pro: the parameters behind the verdict, then further details
Parameter	Ble2Serial	ElectroCalc Pro
Price	Free	Free
Update frequency	Every 4 weeks — better	Every 2 months
Ads	No — better	Yes
In-app purchases	No — better	Yes
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.0	13.0
Further details — not scored
Size	18 MB	28 MB
Age rating	4+	4+
Developer	FUH CHERNG SHEU	DONGSOO LEE

In-app purchases

None

Ble2Serial

No in-app purchases

1 purchases

ElectroCalc Pro

One-time1

Remove Ads$1.99

Questions

Is Ble2Serial free?

Ble2Serial is free to download, with no in-app purchases.

Is ElectroCalc Pro free?

ElectroCalc Pro is free to download, with in-app purchases available.

Do Ble2Serial or ElectroCalc Pro have ads?

ElectroCalc Pro shows ads; Ble2Serial does not.

Which is updated more often, Ble2Serial or ElectroCalc Pro?

Ble2Serial ships an update every 4 weeks, and ElectroCalc Pro every 2 months. Most recently, Ble2Serial was updated on September 15, 2026 and ElectroCalc Pro on September 23, 2026.