AnyScan209: A Free Mobile App for Real‑Time 2D/3D Magnetic Mapping

[AnyScan209]

AnyScan209 is a lightweight, free, and practical tool for 2D and 3D magnetic field mapping, designed for surface geophysics, anomaly detection, and basic magnetic data analysis. The application supports both the internal magnetic sensor of the smartphone and external sensors connected via Bluetooth.

AnyScan209 receives input values in the range of 0 to 1024 and converts them into 2D and 3D maps. This capability makes it suitable for observing magnetic field variations at the ground surface, detecting anomalies, examining shallow subsurface features, and performing simple geophysical surveys.

The app is intended for users who need a portable, fast, and low‑cost tool for magnetic scanning. Its simple interface, sensor balancing function, and real‑time data visualization make AnyScan209 suitable for beginners as well as semi‑professional users.

In summary, AnyScan209 is a free 2D/3D magnetic mapping tool that can be used in surface geophysics, field studies, and preliminary subsurface investigations.

Internal Sensor Mode (Using the Phone’s Magnetometer)


If your Android device is equipped with a built‑in magnetometer, you can use AnyScan209 in Internal Sensor Mode to perform magnetic field scanning without any external hardware.

To improve accuracy and reduce interference from your hand, body, or nearby metal objects, you can mount your phone on a selfie stick and trigger the scan using a Bluetooth remote. This setup allows the phone to act like a handheld magnetic scanner, giving you smoother movement and more stable measurements during the survey.

By keeping the phone away from your body and moving it evenly over the ground or along a wall, the app can generate clean 2D and 3D magnetic maps based on real‑time sensor readings. This method is especially useful for quick surface scans, anomaly detection, and lightweight geophysical surveys.
External Sensor Mode (0–1024 Input Range)


In External Sensor Mode, AnyScan209 receives data values in the range of 0 to 1024, and with each incoming value the scan advances one step forward on the map. This means the app can visualize any type of sensor data as a continuous 2D or 3D map, regardless of the source of the signal.

The external input can come from any device capable of sending numerical values between 0 and 1024, such as:

• a magnetometer
• a metal detector
• an altimeter
• or any other variable‑output sensor

As long as the sensor transmits values within this range, AnyScan209 will convert the stream of data into a structured scan, allowing you to create magnetic maps, metal‑detection grids, elevation profiles, or any other type of surface survey depending on the connected device.
Development Status & Feedback


AnyScan209 is currently under active development, and new features are being added step by step. Practical suggestions, improvement ideas, and any bug reports from users can significantly help enhance the app’s performance and accuracy. Your feedback is highly appreciated and will directly contribute to the future development of the project.

https://anyscan209.en.uptodown.com/android
https://apkpure.com/anyscan209/any.scan_209/download

[AnyScan209]

[AnyScan209]

[Nikolatech]

Hi, I tried the app and it closes by itself

[AnyScan209]

To run the app correctly, it needs a folder named anyscan209. In some Android versions, the app will automatically take you to the settings page where you can grant the required file‑creation permissions. However, on certain Android versions, the app cannot open that settings page by itself. In that case, you need to:

1. Open Settings manually
2. Go to Apps / App management
3. Find anyscan209
4. Open Permissions
5. Enable Files & media access or All files access

If you are using Bluetooth, make sure to grant Bluetooth permission as well. The Location permission is required by Android for Bluetooth functionality; it is not related to the app itself.

If the app still closes, please describe exactly at which step it happens. Also provide your Android version and phone model, so we can investigate the issue more accurately.

[AnyScan209]

[Nikolatech]

When it is installed and it asks you to confirm, I give it power of attorney. When it comes back, it just exits the application... Tel. Samsung galaxy A14

[AnyScan209]

Hi, thanks for the feedback.

On some Samsung devices (including Galaxy A14), Android does not return the app correctly after the permission‑grant screen. When you confirm the permission, the system closes the app instead of sending it back to continue.

This is a known behavior on certain Samsung/One UI versions.

To fix it, please try the following: 1. Open the permissions manually


Go to: Settings → Apps → AnyScan209 → Permissions Enable:

• Files & media (or “All files access”)
• Bluetooth (if you use external sensor)
• Location (required by Android for Bluetooth)

2. After enabling permissions, open the app again


Once the permissions are granted manually, the app should start normally without closing. 3. If it still closes


Please tell me:

• Your Android version
• Your One UI version
• At which exact step the app closes

This will help me reproduce the issue and fix it in the next update.

Unfortunately, I haven’t been able to test the app on a Samsung Galaxy A14 yet. However, I have tested it on the Galaxy A15, and it works without any issues.

Please follow the instructions I mentioned earlier regarding permissions (Files & media, Bluetooth, Location). On some Samsung devices, the system closes the app after granting permissions, and enabling them manually usually fixes the problem.

I’m also planning to get access to a Galaxy A14 soon so I can test the app directly and find out exactly where the issue comes from.

[Nikolatech]

I just found out where the problem was, when I connected bluetooth for the first time, it was saved, I uninstalled it, so I deleted the folder with the txt left in the phone and deleted it, I probably remembered the mistake the first time, now I installed it and it works, only the folder has to be entered, Good app, good luck in the work

[AnyScan209]

Thanks a lot for your feedback. It helped create a useful discussion here, and now other users can benefit from the shared experience as well. I appreciate it.

[Eddy71]

Can you describe in more detail how to connect an external magnetometer to the program via Bluetooth?

What is the format of the data transmitted from the external device?

[AnyScan209]

"The following website mentions the initial equipment, codes, and schematics. In external sensor mode, no specific format is required; simply send values between 0 to 1024 (0 for minimum and 1024 for maximum). If your values are in the 0 to 4000 range, you must divide them to scale down to the 0–1024 range. With each transmission, the software moves forward by one cell and records the sent value. Do not exit the program abruptly; ensure you either complete the scan or select 'Save' from the menu to store the data."

Avoid sending decimal or negative numbers; only integers are allowed. For example, 1.5 is unacceptable, and -45 is also unacceptable.

[nejdet]

Hello, for me the application starts in 2D and when I click to change to 3D, the application closes. The phone is Redmi 10 light. All settings are done!

[AnyScan209]

"Hi Nejdet, thank you for the report. This is actually a known bug that occurs when the app tries to open 3D mode without an existing scan file. It will be fixed in the next update.
For now, as a workaround: Please ensure you create a scan and save the file first. Once a file is saved, the 3D mode will have data to load and should open correctly without crashing."

[Nikolatech]

Greetings, I would like to ask how to determine the depth since there is no value that it calculates