KeyLevel 88 Regulation Map
88-Key Piano Regulation Map
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Map every A0–C8 regulation point, reconcile reference and current measurements, track completeness, and export technician-ready handoffs locally.
KeyLevel 88 Regulation Map is a local-first workbench for independent piano technicians and small regulation shops. Map the complete physical A0–C8 keyboard, preserve stable key identity, and record technician-entered regulation measurements without pretending to measure or diagnose the piano automatically.
Capture reference and current values, mark unknown or unverified points explicitly, review keyboard-wide completeness, compare visits, and preserve provenance. Export technician handoffs in JSON, CSV, or PDF, and use backup, restore, recovery copies, and deletion controls without an account or cloud sync.
The free tier includes a useful end-to-end regulation-map workflow. Independent Pro adds multi-piano workspaces, repeated-visit comparison, longitudinal history, and reusable technician baselines. Monthly and yearly plans renew automatically; Lifetime is a one-time purchase. Restore Purchases is available in the Pro screen.
KeyLevel 88 does not tune pitch, listen to audio, automatically measure physical geometry, certify work, or replace technician judgment. No account, ads, analytics, tracking, or external payment is used.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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The developer, TECK SOON NG, 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
- TECK SOON NG
- Size
- 6.7 MB
- Category
- Productivity
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 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 and 15 more
- English, Arabic, Filipino, French, German, Hindi, Indonesian, Japanese, Korean, Malay, Portuguese, Simplified Chinese, Spanish, Thai, Traditional Chinese, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Independent Pro — Yearly $39.99
- Independent Pro — Lifetime $89.99
- Independent Pro — Monthly $5.99
- Copyright
- © 2026 E Stream Media Empire