Ka vs BLE serial terminal V2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ka
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Ka-ching SecondScreen provides the opportunity of a customer-facing screen in-store when using Ka-ching POS. Registration of products and discounts will be visible to the customer on the screen. In case of signing a membership, customers will be able to apply their e-mail addresses themselves.
BLE serial terminal V2
Connect iOS devices to Bluetooth Low Energy serial port converters for bi-directional data exchange. Supports RS-232, RS-422, and RS-485 interfaces, ideal for testing with SCADA, robots, and PLCs.
- BLE to Serial Port Support
- Bi-directional Data Exchange
- ASCII or Hex Format Data
- Supports RS-232, RS-422, RS-485
- BLE V4.x & V5.x Compatible
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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. [Features]: 1. Support BLE to Serial Port 2. Sent and received data in ASC II or Hex format 3. Support BLE V4.x & V5.x version
Screenshots
Verdict
The clearest difference is iOS requirement: BLE serial terminal V2 at 12.0 against Ka's 16.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Ka ships an update every 2 months, BLE serial terminal V2 monthly. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.
| Parameter | Ka | BLE serial terminal V2 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (2 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Ka-ching ApS | FUH CHERNG SHEU |
In-app purchases
Ka
No in-app purchases
BLE serial terminal V2
No in-app purchases
