
Measure Volume with Audio Analysis
Get accurate urine volume estimates directly within your Bladder Journal using cutting-edge sound analysis technology—all processed privately on your device.
All plans include Deep Insights. Annual plan ($29.99/year) also includes Smart Alerts and AI Chat. A weekly plan is also available at $2.99/week.
Non-Invasive Volume Measurement
Understand your output volume more accurately without needing measuring containers. Audio Analysis provides a convenient estimate integrated directly into your tracking flow.
Accurate Estimation
Uses sophisticated sound analysis to estimate urine volume. This provides valuable data for tracking fluid balance alongside consultations with your doctor.
Privacy First
All audio processing happens securely and privately on your device. No recordings are ever stored or sent to the cloud.
Seamless Integration
Volume estimation works seamlessly with the urination timer. Just start the timer, and the app handles the rest.
How Audio Analysis Works
Leveraging your device's microphone and advanced algorithms for convenient volume estimation.
Start the Timer
When you need to urinate, simply start the timer in the Bladder Journal app as you normally would. Ensure your device is nearby.

On-device processing
Audio Capture & Analysis
The app listens using the microphone. Advanced algorithms analyze the sound characteristics in real-time to estimate flow rate and duration, all processed locally for your privacy.
Volume Estimation
Once you stop the timer, the app provides an estimated urine volume based on the analysis. This volume is automatically saved with your urination entry.
Estimated Volume
250 ml
(Saved automatically to your journal)
Unlock Audio Analysis
Choose the subscription plan that works best for you. Start analyzing your true volume patterns today.
Monthly
Flexible option
- Audio volume estimation
- Deep Insights included
- Private on-device processing
Quarterly
Best value for tracking
Save 17% vs monthly
- Audio volume estimation
- Deep Insights included
- Private on-device processing
Annual Pack
Complete package
Includes AI Chat!
- Audio volume estimation
- Deep Insights included
- AI Chat included
- Save 58% vs monthly
Frequently Asked Questions
Everything you need to know about using Audio Analysis.
What is the Audio Analysis feature in Bladder Journal?
The Audio Analysis feature uses advanced sound processing technology directly on your device to estimate your urine volume based on the sound recorded during urination. It provides a non-invasive way to get more accurate volume measurements.
How much does Audio Analysis cost?
Audio Analysis is available via subscription with four options: $2.99 USD per week, $5.99 USD per month, $14.99 USD for 3 months (about $5.00/month), or $29.99 USD per year (about $2.50/month). All plans include Deep Insights. The annual plan also includes Smart Alerts and AI Chat, offering the best overall value.
How does Audio Analysis work?
When you start the urination timer, the app uses the device's microphone to listen. Sophisticated algorithms analyze the sound characteristics to estimate the flow rate and total volume. All processing happens locally on your device for privacy.
Is my audio recording stored or shared?
No. Your privacy is paramount. All audio processing happens entirely on your device. The recordings are analyzed in real-time and are not stored or transmitted anywhere.
How accurate is the volume estimation?
The accuracy depends on various factors like background noise and device placement. While it aims to provide a good estimate, it should be used as a supplementary tool alongside other tracking data and not replace precise medical measurements if required.
Start Tracking with Confidence
Download Bladder Journal today and subscribe to Audio Analysis for a complete, accurate picture of your bladder health.
Download for iOS