BLE ToolBox vs Conn.Logger
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BLE ToolBox
This utility app facilitates the development of Bluetooth 4.0 Low Energy accessories. It offers a user-friendly interface for discovering, connecting to, and managing LE devices, supporting various standard and special BLE services for data transfer and remote control.
- Discover and connect to BT4.0 LE devices
- Support for standard LE services (HRP, HTP, BLP, GLP, FMP, CSCP)
- Special BLE services (SPS, Remote, OTA)
- User-friendly interface for device management
- Over-the-air firmware updates
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BLE ToolBox is the right tool for developing BT4.0 LE accessories. BLE ToolBox supports various standard LE Services/Profiles and special service for data transfer and remote control. BLE ToolBox provide an user friendly interface to searching the BT4.0 LE devices with dedicated BT4.0 LE service, connect/disconnect to the device, get the connected device information and service data. Standard BLE services supported : - HRP, Heart Rate Profile. - HTP, Health Thermometer Profile. - BLP, Blood Pressure Profile. - GLP, Glucose Profile. - FMP, Find Me profile. - CSCP, Cycling Speed & Cadence Profile. Special BLE services supported : - SPS, Serial Port Service, setup serial port connection between iOS and BT4.0 LE accessories. - Remote, Remote Control Service. - OTA, Over the Air Technology, update is the wireless delivery of new software, firmware or other data to mobile devices. Note : BLE ToolBox can only work on iOS devices support BT4.0 LE, like iPhone4S or new iPad.
Conn.Logger
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Conn.Logger is the control application for the connection, configuration, data access, and maintenance of the ConnectedLogger device from MRS Electronic. What is ConnectedLogger device? ConnectedLogger is an ECE and RED certified smart data logging device. It captures and stores data from multiple buses of your machine, including CAN and LIN. This data can be stored in the internal flash memory of the ConnectedLogger device and/or sent to our cloud server. Main features of ConnectedLogger device * Data transfer - BLE to transfer data from vehicles to the Conn.Logger application and LTE or Wi-Fi from application to the backend server. * Security - Secure data connection from ConnectedLogger to cloud via tokenization and usage of HTTPS and MQTTs protocols. * Protection - IP6K8 protection class for water and dust resistance. * Easy installation - Compact size and light weight for convenient installation. Why would you want to install the Conn.Logger application? * Interactive UI - Provides an interactive UI to control your ConnectedLogger device. * Offline data capturing - Captures your data even when the internet isn't accessible. * Data transmission - Transmits your data from ConnectedLogger device to the cloud server. * Configuration - Assists you in configuring the settings of your ConnectedLogger device. * Data access - Accesses data stored on the ConnectedLogger device. * Live data - Displays your vehicle's live data such as its CAN/Analog, Events, and GPS information.
Screenshots
Verdict
The clearest difference is update cadence: Conn.Logger at every 4 months against BLE ToolBox's every 19 months. Conn.Logger also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support 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.
BLE ToolBox ships an update every 19 months, Conn.Logger every 4 months. The most recent releases landed on July 4, 2026 and September 8, 2026 respectively.
| Parameter | BLE ToolBox | Conn.Logger |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 19 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Enzytek Technology, Inc. | MRS Electronic Gmbh & Co. KG |
In-app purchases
BLE ToolBox
No in-app purchases
Conn.Logger
No in-app purchases









