# Keymap: Song Key & BPM Finder — Vocal Remover & Slow Downer

> Vocal Remover & Slow Downer (iPhone/iPad app by NTSAUTOSIGA LLC.)

- Source: https://appshunter.io/ios/app/keymap-song-key-and-bpm-finder/id6799724767 (this page in markdown: same URL + `.md`)
- Developer: [NTSAUTOSIGA LLC](https://appshunter.io/developer/1896638186)
- Category: Music, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 27.0 · 125 MB
- Languages: American English, Russian
- Released: 2026-10-12
- Data updated: 2026-10-13

## What is Keymap?

Keymap turns any song into a practice tool — entirely on your iPhone.

HEAR EVERY PART
• Split a song into vocals, drums, bass, guitar, piano and other
• Mute the vocals for an instant backing track or karaoke
• Solo one instrument and learn exactly what it plays

KEY, BPM, CHORDS, STRUCTURE
• Key and tempo detected on the device in seconds
• Chord sheet with a capo setting and fingerings
• Color map of the song: intro, verse, chorus — tap a part to loop it

LYRICS WITH CHORDS
• Lyrics recognized on the device, chords written above the words

PRACTICE SMARTER
• Slow down to 50% without changing pitch, or change the key to match your voice
• Loop any part, snapped to the beat
• Metronome with count-in, built-in tuner
• Record yourself and compare with the original
• Practice streak and a home screen widget

BUILD IT YOURSELF
• Export MIDI, a chord chart and a project outline for your DAW

YOUR LIBRARY, EVERYWHERE
• Folders and setlists, iCloud sync between your iPhones and iPads
• Siri Shortcuts: open a song or start practice by voice

PRIVATE BY DESIGN
• Analysis runs on your iPhone — no uploads, no account
• Your recordings never leave your device

KEYMAP PRO
Keymap Pro is available as a yearly subscription with a 7-day free trial, a monthly subscription, or a one-time lifetime purchase. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel them in your App Store account settings. Any unused portion of a free trial is forfeited when you purchase a subscription.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://keymap-legal.tsyrenov1987.workers.dev/privacy/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly | $29.99 | per year |
| Monthly | $9.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $39.99 | one-time |


## Is Keymap safe?

Not enough ratings yet to assess Keymap.

## Is Keymap legit?

Keymap: Song Key & BPM Finder appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Keymap is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-12

No release notes.

## More apps by NTSAUTOSIGA LLC

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- [Subly: Subtitle Maker](https://appshunter.io/ios/app/subly-subtitle-maker/id6778295353)
- [Revive: Restore Old Photos AI](https://appshunter.io/ios/app/revive-restore-old-photos-ai/id6779492875)
- [Servlog: Car Maintenance Log](https://appshunter.io/ios/app/servlog-car-maintenance-log/id6780549101)

All apps by NTSAUTOSIGA LLC: https://appshunter.io/developer/1896638186

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-13.*