Scan Bluetooth and Wi-Fi for FIND3
About this app
FIND3 is a minimal Android app for using with FIND3. This app will allow you to use your phone to perform constant scans of Bluetooth and WiFi signals and levels that can be associated with certain locations in your home to allow internal positioning. To receive the data, the FIND3 public server can be used or a personal server can be deployed.
The Framework for Internal Navigation and Discovery (FIND) is like GPS, but for your every room in your house/business, with using only a simple smartphone or laptop.
Your device (laptop or a smartphone) tracks itself by actively scanning for nearby Bluetooth/WiFi devices and records their signal strengths and classifying them based on known signal strengths for a given location.
This repository is a complete re-write of the [github.com/schollz/find previous version of FIND]. The API for sending fingerprints (/track and /learn) is backward compatible. There are several notable improvements on the previous version:
* Support for any data source, Bluetooth / WiFi / magnetic fields / etc. (previously just WiFi) * Passive scanning built-in (previously required a separate server) * Support for Bluetooth scanning in scanning utility (previously just WiFi) * Meta-learning with 10 different machine learning classifiers (previously just three) * Client uses Websockets+React which reduces bandwidth (and coding complexity) * Rolling compression of mac addresses for much smaller on-disk databases (see mapslimmer) * Data storage in SQLITE-database (previously it was BoltDB)
Licensed under MIT, by Hypercube Platforms.
What's New in v3.0.3
Imported from the F-Droid repository index.
Version history
Aug 20, 2018 · 1.4 MB · Android API 23–24 · code 6
Imported from the F-Droid repository index.
SHA-256 1b61fb3f2326032020e2e1f86928d04d3e2e9f3ae32007edfc0d024bf0624405
Will it run on your device?
73%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be com.internalpositioning.find3.find3app is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
No earlier build is on record for FIND3 Scanner, so there is nothing to roll back to yet. When a second version is published, this section will explain how to move between them safely.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of FIND3 Scanner, and a listing is removed when the evidence for it stops holding up.
Get FIND3 Scanner
Every source we list for com.internalpositioning.find3.find3app is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
1b61fb3f2326032020e2e1f86928d04d3e2e9f3ae32007edfc0d024bf0624405
Signing certificate
4bd2e1aebd8c3744e7aa705b33a49a516e669976de73a1a3e33dd4e72529741d
Permissions Required
Previous Versions
No earlier build is on record — this is the first release we have listed.
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
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