Steelhead vs Light Matter Kit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Steelhead
This utility app allows users to connect to and configure compatible sensors via Bluetooth. It enables direct sensor diagnostics, immediate readings, and downloading of stored data for analysis.
- Bluetooth (BLE) connectivity
- Sensor configuration (add/change sensors)
- Reporting/sampling interval adjustment
- SDI-12 Transparent mode for diagnostics
- Immediate current readings
- Download stored data
Read full descriptionHide full description
• Connect via Bluetooth (BLE) • Configuration: add/change sensors, reporting/sampling interval, and more! • SDI-12 Transparent mode: talk directly to the sensor for diagnostics • Current readings: take an immediate reading • Download stored data
Light Matter Kit
Read full descriptionHide full description
Light Matter Kit (LMK) is a Bluetooth utility for smart lighting with fast device discovery and control, group management, and firmware OTA.
Screenshots
Verdict
The clearest difference is update cadence: Steelhead at every 5 weeks against Light Matter Kit's every 9 months. 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.
Steelhead ships an update every 5 weeks, Light Matter Kit every 9 months. Both last shipped on November 3, 2026.
| Parameter | Steelhead | Light Matter Kit |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 weeks — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 75 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Stevens Water Monitoring Systems, Inc. | FEIBIT ELECTRONIC TECHNOLOGY CO., LTD. |
In-app purchases
Steelhead
No in-app purchases
Light Matter Kit
No in-app purchases









