RTL-SDR 433

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Content rating
Everyone
500+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

RTL-SDR 433 — Decode Wireless Sensors in Real Time

Turn your Android device into a powerful 433 MHz receiver using an RTL-SDR USB dongle.
Decode and monitor wireless sensor data live — fully offline and directly on your device.

📡 Real-Time 433 MHz Decoding
Supports weather stations, doorbells, PIR sensors, power meters, and more
Built on the proven rtl_433 decoding engine
250+ supported device protocols

⚡ Works Fully Offline
No cloud required
No internet connection needed
All decoding happens locally on your device

📊 Live Monitoring & History
Live sensor list with latest readings
Full history view of all received signals
Automatic updates in real time

⚙️ Advanced Configuration
Adjustable frequency (default: 433.92 MHz)
Tuner gain control
PPM frequency correction
Sample rate selection
Unit system (SI / Customary)

🔌 Easy USB Setup
Works with RTL-SDR USB dongles (RTL2832U-based)
Uses Android USB OTG (no root required)
Quick start: plug in, grant permission, start decoding

💎 Premium Upgrade
Free version: session reading limit (100 → 80 → 60 → 40 → 20 per session, decreasing)
One-time purchase unlocks unlimited usage
Restore purchases anytime via settings

📱 Requirements
Android 10 or higher
USB OTG support
Compatible RTL-SDR dongle

🔒 Privacy First
No tracking
No cloud services

📄 Additional Information
Built with modern Android (Jetpack Compose & Material 3)
Updated on
May 15, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

What’s new

problems / questions / suggestions / help --> info@ebctech.eu - will help to improve the app quality
v1.2.8 — Better start/stop stability on Android 14
FIXES
• Fixed a rare Android 14 crash that could happen during quick start/stop
sequences with some USB SDR devices.
• Improved shutdown ordering so the USB connection is not released too early
while the decoder is still cleaning up.
Content rating
Everyone
In-App Purchases
Learn more

App support

Phone number
+436702011797
About the developer
Ing. Christian Ebner
info@ebctech.eu
Parkstraße 21/Tür 12 4310 Mauthausen Austria
+43 670 2011797

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