Watermelon Picker 1
Food & Drink
Only for iPhone
Free · In‑App Purchases · Designed for iPhone
iPhone
Choosing a good watermelon in the store can be surprisingly difficult. This app helps you make a more informed choice by analyzing simple visual and sound cues directly on your phone.
How it works?
1. Take a photo of the watermelon.
2. Gently knock on it and record the sound.
3. Receive a taste prediction based on visual and acoustic patterns.
The app combines image and sound analysis to evaluate characteristics commonly associated with watermelon quality, such as surface appearance and resonance, and presents an easy-to-understand prediction before you buy.
Credits
+ New users receive free credits to try the app. Each analysis uses one credit. Additional credits can be purchased within the app to continue using the analysis features.
Key features
+ Photo-based visual analysis
+ Knock sound analysis
+ Simple taste prediction results
+ No account or sign-up required
+ On-device friendly experience
This app is designed as a decision-support tool to help shoppers make better choices. Results are predictions and should be used as guidance rather than guarantees.
Ratings & Reviews
- Tap for details on each sound metric, see what makes a good knock and how to improve.
- Updated spectrograms with time and frequency labels.
- Improved scoring for frequency balance and decay so scores better reflect real knocks.
- Bug fixes and stability improvements for spectrogram.
The developer, Hanqing Guo, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Hanqing Guo
- Size
- 10.7 MB
- Category
- Food & Drink
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- 10 Credits $1.99
- 100 Credits $9.99
- Copyright
- © 2026 Hanqing Guo
