BITZER Electronics ServiceTool vs LLS 4000
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BITZER Electronics ServiceTool
This application allows for Bluetooth connectivity to specific BITZER IQ products. Users can configure devices, monitor operations, view alarms with help texts, and retrieve logs for visualization and cloud upload.
- Bluetooth connectivity
- Device configuration
- Operation monitoring
- Alarm viewing with help texts
- Log retrieval and visualization
- Cloud upload for logs
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This is the App edition of the BEST SOFTWARE (BITZER Electronics Service Tool) for connecting to BITZER IQ products that support Bluetooth. Quickly configure the devices, monitor the operation and view the alarms including alarm help texts. Furthermore, the logs can be retrieved from the devices, visualized and uploaded to the myBITZERcloud for storage and sharing with other devices and peoples. Supported products: // IQ MODULE CM-RC-02 // IQ MODULE CM-RC-01 - Requires firmware version 2.5.246.00 or newer - For firmware update use the Windows version of BEST as it requires to connect via the BEST converter // IQ MODULE CM-SW-01 - Requires firmware version 2.8.82.00 or newer - For firmware update use the Windows version of BEST as it requires to connect via the BEST converter // CSV - Bluetooth is available by the CSV frequency inverters with the control board of the 2nd generation. This control board can be recognized by the STO input (orange connector) or the RJ12 socket for the BEST converter - Requires firmware version 1.92 or newer - For first configuration (change of refrigerant or configuring the compressor type in case of spare parts) use the Windows version of BEST as it requires to connect via the BEST converter. Also for firmware updates // ECOSTAR LHV5E and LHV7E - Requires firmware version 5.0.2.0 or newer - For firmware update use the Windows version of BEST
LLS 4000
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Connect to and setup of any Danfoss LLS 4000/4000U liquid level switch with the LLS 4000 app. Commissioning, setup, and monitoring can all be performed quickly and conveniently with just a few taps on your smartphone. The LLS 4000 app connects remotely to any LLS 4000/4000U liquid level switch via Bluetooth. Once they are paired up, you can select between essential functions. For the non-SIL2 variant of the LLS 4000, the app enables you to select between several media1 and select switch function as normally open (NO) or normally closed (NC). You can also monitor performance, including temperature and frequencies. If you connect to a SIL2 variant, you do exactly the same as for the non-SIL2 variant except: A SIL2 variant is locked to a normally closed (NC) function and cannot be changed The app has two modes: Service mode for commissioning and monitoring. If you’re a contractor, you can remain in Service mode to streamline the setup process. If you’re a system owner, the monitoring mode is your best friend—enabling you to quickly check your LLS 4000’s performance while walking by. The app also limits the amount of code numbers you need to track, since the four variants2 of the LLS 4000 can be used in almost any refrigeration application. 1 R717 (Ammonia),R22,R507A,R134a,R404A,R407A,R410A,R513A,R1234ze(E),PAO (Oil),POE (Oil),Mineral (Oil) 2 LLS 4000 liquid level switch G 3/4” LLS 4000 SIL2 liquid level switch G 3/4” LLS 4000U liquid level switch NPT 3/4” LLS 4000U SIL2 liquid level switch NPT 3/4”
Screenshots
Verdict
The clearest difference is update cadence: BITZER Electronics ServiceTool at every 3 months against LLS 4000's every 12 months. LLS 4000's advantage is iOS requirement (11.0 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.
BITZER Electronics ServiceTool ships an update every 3 months, LLS 4000 every 12 months. The most recent releases landed on September 24, 2026 and September 26, 2026 respectively.
| Parameter | BITZER Electronics ServiceTool | LLS 4000 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 248 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | BITZER SE | Danfoss A/S |
In-app purchases
BITZER Electronics ServiceTool
No in-app purchases
LLS 4000
No in-app purchases
Questions
Is BITZER Electronics ServiceTool free?
Is LLS 4000 free?
Do BITZER Electronics ServiceTool or LLS 4000 have ads?
Which is updated more often, BITZER Electronics ServiceTool or LLS 4000?
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