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Screenshots

  • TopLayout screenshot 1
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  • TopLayout screenshot 4

About TopLayout

This application can communicate with a layout navigator LN Series. By using this, you can perform the layout work of 3 dimensional design data and as-build measurement of 3 dimensional point data. Layout navigator LN Series is pursuing the increase in efficiency of survey work and the ease of using compared with the conventional survey instrument. The update rate of data has realized 20 Hz. So the data delay to the motion of the prism is minimized and the response of guidance to a layout point becomes smooth. Moreover, it can be re-tracked quickly when it failed of tracking the prism. By carrying the self leveling, LN Series can also be used easily by user which is not used to handling of a survey instrument. Main Features of layout navigator LN Series: +Realization of simplification of operation by the limit to the function of layout work and as-build measurement. +Realization of the laborsaving by the measurement by oneself. +Realization of improvement of operational efficiency by the optimal sequence for each of layout work and as-build measurement. +Realization of simplification of instrument setup by the self leveling and visual information of operation steps. https://www.topconpositioning.asia/jp/en/products/brand/topcon/ln-150/ To use this application, the use of location information should be enabled. This application can be used on devices with iOS 16 or higher. Please note that operation on all devices is not guaranteed. Tested Devices: +iPhone 14 Plus(iOS 16.1) +iPhone 14 Pro Max(iOS 17.0.2) +iPhone 16 Pro Max(iOS 18.4) The instruction manual can be downloaded from the TOPCON website.

What’s new

Version 3.8.0 · Updated February 13, 2026

Ver.3.8.0 + Supported the functions of the new LN series model, "LN-1000i". - High-speed prism locking using real-time video with the camera function - Non-prism measurement in locations where prism installation is not possible - Self-inspection and calibration of the main unit using the angle adjustment function

App privacy

The developer, TOPCON CORPORATION, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to TopLayout

Looking for apps like TopLayout? Here are 6 similar apps on the App Store. The highest rated is Topcon Haul (5.0/5), and all 6 are free to download.

TopLayout vs. alternatives
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TopLayout – Free February 13, 2026
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