Letus Helix vs LidarAC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Letus Helix
This app provides a streamlined interface for adjusting settings on various Letus Helix gimbal models. It simplifies configuration by removing less frequently used options found in desktop software, offering additional user assistance tools for easier operation.
- Intuitive settings adjustment
- Simplified configuration
- User assistance tools
- Wi-Fi connectivity
- Support for multiple Helix models
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The Letus Helix app is designed to be a simple and intuitive way of changing settings on the Letus Double Helix, Helix Pro, Standard Helix, and Helix Jr. Many settings from the SimpleBGC GUI (PC/Mac-based configuration program) have been eliminated, because those settings are only needed to work with other gimbals or are rarely used. Additional tools to help the user have been created to assist the user in their use of the Helix. Connection with the Helix is done as follows: 1) Turn the Helix on 2) Go to the Home screen on your iPhone/iPad. 3) Find Settings -> Wi-Fi and select your Letus Helix. 4) Enter the wifi password found in the app help files (found by pressing the info button on the app's main menu). 5) Once it connects in iOS, you can go to the app and press the connect button.
LidarAC
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LidarAC – RX is the handheld control and monitoring interface for the LidarAC system, built to extend Tilta Nucleus M and N setups for modern focus workflows. The idea is simple: bring tools normally found on high-end hand units to the Nano by using an iPhone. The system consists of two Modes. RX acts as the handheld interface and connects to the Nucleus Nano II via Bluetooth. TX runs on a second iPhone mounted on the camera (iPhone 12 Pro or newer) and provides LiDAR-based distance data. RX already enhances the Nucleus on its own with custom lens profiles, focus scaling, and marker tools. The full potential unlocks when paired with TX, adding real-time distance data directly into the focus workflow. Instead of relying on raw motor values, the system translates focus into usable distance context. Depth of field is calculated and visualized in real time, helping focus pullers make faster and more confident decisions, especially in dynamic scenes. Lens profiles allow precise mapping between LiDAR data and lens behavior, including aperture-based depth of field. Camera profiles handle CoC and sensor offset, ensuring accurate results in real-world setups. The focus scale is fully interactive and can switch between a flat mode and a focus wheel inspired mode. Values can either be mapped visually like on the lens for intuitive pulling, or displayed linearly to better understand spatial relationships within the scene. Marker and tracking tools make it easy to set, follow, and recall focus points. Features like spot measurement, 2D and 3D tracking, and a top-down LiDAR view provide clear spatial awareness on set. Haptic feedback increases as you approach a marker, giving intuitive confirmation without looking away. Key features: • Real-time LiDAR distance data for people, faces, and eyes • Spot distance measurement • 2D and 3D tracking points • Top-down LiDAR scene view • Custom lens profiles with depth of field visualization • Multiple focus scale modes (linear, lens matched, logarithmic) • Marker-based focus assistance with haptic feedback
Screenshots
Verdict
The clearest difference is rating: LidarAC at 5.0 against Letus Helix's 3.7. LidarAC also leads on update cadence (every 11 days vs every 4 months). Letus Helix's advantage is ratings volume (3 vs 1) and iOS requirement (11.0 vs 17.6). 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.
LidarAC holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
Letus Helix ships an update every 4 months, LidarAC every 11 days. Both last shipped on October 24, 2026.
| Parameter | Letus Helix | LidarAC |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 4 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 21 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Ken Lawler | Luis Arndt |
In-app purchases
Letus Helix
No in-app purchases
LidarAC
No in-app purchases









