Polynizer: see what you hear
Arturo Camacho Lozano Music iPhoneiPadiPod touch
Polynizer: see what you hear is a free Music app for iPhone and iPad by Arturo Camacho Lozano. Rated 2.5/5 from 2 ratings. Requires iOS 16.0.
- Rating
- 2.5
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 42 MB
- Age 17+
- Updated
- Jul 31
- 2025 · v2.3
Screenshots
About Polynizer: see what you hear
WHAT CAN YOU DO WITH POLYNIZER - View a piano roll for any song—whether it's on YouTube, stored locally on your device, or played live through your mic. - See precise chord names, guitar chord charts, staff notation, keyboard voicings, and more—customized to your level: basic, intermediate, or advanced. - Customize chord naming: English or Italian note names, jazz symbols, Roman numeral analysis, and more. - Define bars, time signatures, and key signatures to match the song structure. - Detect and adjust the song’s tuning. - Transpose the song to any key—including audio transposition for local files.* - Change playback speed to suit your learning pace. - Export chords and lyrics as a PDF for practice or sharing. *Audio transposition is available only for local audio files, not YouTube videos. HOW TO USE MICROPHONE MODE 1. Select Microphone from the menu and start playing. Polynizer will listen in real time and transcribe the notes into a piano roll. The volume adjusts automatically to your playing level. 2. Press the Record button if you want to save the audio for later use. HOW TO USE YOUTUBE VIDEOS OR LOCAL FILES 1. Choose the song you want to analyze—either a YouTube video or a local audio file. In just a few seconds, Polynizer will display a piano roll with the detected notes. 2. Tap the Play button to listen along. 3. To add a chord, press and hold the Hold for Chord button for the full duration of the chord. Polynizer will suggest up to three chord options. Once you have introduced some chords, you can explore other Polynizer’s great features: set key and time signatures, define bars, adjust speed, and more. With flexible subscription plans, there’s an option for every need. Play the music you love with Polynizer! Privacy policy: https://polynizer.com/privacypolicy Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
What’s new
Version 2.3 · Updated July 31, 2025
These are the latest and most exciting features: - Live Piano Roll from Microphone: Get real-time transcriptions of music captured through your device’s mic. You can also record the audio by tapping the Record button. - Cloud or On-Device Processing: Choose between cloud-based analysis or faster, on-device processing (ideal for short songs and high-performance devices).
App privacy
The developer, Arturo Camacho Lozano, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Contact Info: Email Address
- Usage Data: Product Interaction
- Purchases: Purchase History
- Identifiers: User ID
Used for: Analytics, App Functionality
Alternatives to Polynizer: see what you hear
Looking for apps like Polynizer: see what you hear? Here are 6 similar apps on the App Store. The highest rated is Kalimba Keys (5.0/5), and 2 of the 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Polynizer: see what you hear | 2.5 / 5 (2 ratings) | Free | July 31, 2025 | |
| Async Sampler | 4.5 / 5 (18) | 14.99 USD | Feb 18, 2025 | Compare |
| Meow | Audio Editor | 4.3 / 5 (9) | Free | Jul 23, 2024 | Compare |
| KingB Organ | 4.8 / 5 (27) | 24.99 USD | Jan 15, 2025 | Compare |
| Kalimba Keys | 5.0 / 5 (14) | 4.99 USD | Mar 10, 2025 | Compare |
| Piano Transcriber | 5.0 / 5 (1) | Free | Jun 18, 2024 | Compare |
| RingsFX | 4.9 / 5 (27) | 14.99 USD | Dec 2, 2025 | Compare |