# StimmNagel App — Erfahre mehr über dein Klavier

> Erfahre mehr über dein Klavier (iPhone/iPad app by Jan Gerhard Karl Nagel.)

- Source: https://appshunter.io/ios/app/stimmnagel-app/id6759914482 (this page in markdown: same URL + `.md`)
- Developer: [Jan Gerhard Karl Nagel](https://appshunter.io/developer/1881611491)
- Category: Education, Music
- Price: Free
- Age rating: 4+
- Requires: iOS 16.6 · 27 MB
- Languages: American English
- Released: 2026-03-04
- Data updated: 2026-08-05
- User reviews in markdown: https://appshunter.io/ios/app/stimmnagel-app/id6759914482/reviews.md

## What is StimmNagel App?

This app looks after your piano.

Book an appointment
Straight from the app — no phone calls, no back and forth.

Measure the pitch
Rest your phone on the piano and play an A. The app shows you how far the tuning has drifted and remembers every reading. Over the months you'll see how well your instrument holds its pitch — and you'll know for yourself when it's time again.

My piano
Make, model, serial number, location and photos in one place. Plus temperature and humidity over time. Those two readings do more to determine how well a piano holds its tuning than anything else.

Check the condition
A few questions about tone, touch and casework give you a first sense of what your instrument needs.

How old is my piano?
Enter the serial number and find the year it was built.

Instruments
Restored pianos from my workshop — with photographs, a full description and the price. The list keeps growing.

News
What's happening in the workshop right now.

StimmNagel Run
And if there's waiting time after all: a small game whose sounds come from a real piano model.


## Version history (last 5 releases)

### 1.2 — 2026-08-04

Three new sections.

Instruments
Restored pianos from the workshop — with a photo gallery, a full description and the price. Sold instruments stay visible, as a small record of what has passed through here.

News
What's happening in the workshop right now.

Both come straight from stimmnagel.de. New instruments and posts appear immediately — no app update needed.

StimmNagel Run
A small game for the wait. Twenty-five minutes that keep getting faster. The sounds come from a real piano model, not from a sample library.

### 1.1.0 — 2026-05-30

Version 1.1 brings powerful new features: pitch measurement history with graphs, climate tracking (temperature & humidity), time period filters for all charts, and photos for your pianos. Your complete piano diary is here!

### 1.0.4 — 2026-05-25

Improved pitch detection — more precise frequency recognition on all devices.

### 1.0.3 — 2026-03-09

The microphone finally listens, booking now calls and emails directly from the app, and we fixed a few things that probably should never have broken in the first place.

### 1.0.1 — 2026-03-07

• Pianos are now saved permanently – even after restarting the app
• Confirmation dialog before deleting an instrument
• Booking screen loads more reliably
• Microphone permission fixed on Android
• Legal & Privacy linked directly in the app
• Improved tuner with more precise pitch detection

Serial number database significantly expanded: Now includes 24 manufacturers, including leading German brands such as Schimmel, Bechstein, Blüthner, Bösendorfer, Grotrian, Sauter and Seiler, as well as international manufacturers like Fazioli, Pleyel, Petrof, Baldwin and Pearl River.

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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 2026-08-05.*