Sensor Switch VLP vs Klein Borescope ET21
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sensor Switch VLP
This app allows for the visual configuration of occupancy sensors and photocontrols using flash programming technology. Users can easily adjust settings like time delay, trim values, and photocontrol options. It also offers Bluetooth connectivity for select sensors and includes security features.
- Visual sensor selection
- Adjust occupancy time delay
- Configure photocontrol options
- Save sensor setting profiles
- PIN code security
- Bluetooth configurability
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The VLP App with flash programming technology from Acuity Controls effortlessly configures Sensor Switch occupancy sensor and photocontrols. Set occupancy time delay, trim values, photocontrol options and more with this visually intuitive tool. Sensor customization has never been easier. Flash programming uses the camera flash on a mobile device to communicate settings to the sensor. Bluetooth configurability is also available on select sensors with the VLP app. Features • Easy to use visual based sensor selection • Set occupancy time delay, trim values, photocontrol, on modes • Easily revert back to factory defaults • PIN code security enabled • Save sensor setting profiles • Editable screens
Klein Borescope ET21
This app allows construction workers to capture pictures and videos of worksite progress and details using a WiFi borescope. It facilitates easy documentation of on-site conditions and project advancements.
- Picture capture
- Video recording
- WiFi connectivity
- Worksite documentation
- Progress tracking
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The WiFi Borescope provides construction workers picture and video capture of worksite progress and details
Screenshots
Verdict
The clearest difference is ads: Klein Borescope ET21 at none against Sensor Switch VLP's shown. Klein Borescope ET21 also leads on rating (2.2 vs 1.8) and monetization model (free vs ad-supported). On price, ratings volume, 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.
Klein Borescope ET21 holds the better App Store score, 2.2 against 1.8. Both are backed by a comparable volume of ratings — 26 and 9 respectively.
Sensor Switch VLP ships an update every 5 months, Klein Borescope ET21 every 2 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.
| Parameter | Sensor Switch VLP | Klein Borescope ET21 |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (26 ratings) | 2.2 (9 ratings) — better |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 26 — better | 9 |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 116 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Acuity Brands Lighting, Inc | Klein Tools |
In-app purchases
Sensor Switch VLP
No in-app purchases
Klein Borescope ET21
No in-app purchases
