# Unruh - Watch Accuracy — Mechanical Watch Tracker

> Mechanical watch accuracy tracker using atomic time reference. (iPhone/iPad app by Noel Weinberg.)

- Source: https://appshunter.io/ios/app/unruh-watch-accuracy/id6760858048 (this page in markdown: same URL + `.md`)
- Developer: [Noel Weinberg](https://appshunter.io/developer/1823665034)
- Category: Utilities, Lifestyle
- Price: Free with in-app purchases
- Rating: 4.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.0 · 5 MB
- Languages: German (Germany), American English
- Released: 2026-03-24
- Data updated: 2026-08-19
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/unruh-watch-accuracy/id6760858048/reviews.md

## What is Unruh?

Is your mechanical watch running fast or slow? Unruh tells you exactly — down to the fraction of a second.

Unruh measures the accuracy of your mechanical watches by comparing them against atomic reference time (NTP). Simply tap when your second hand hits 12, and Unruh instantly calculates how far off your watch is.

PRECISION MEASUREMENT
• Atomic time reference via NTP synchronization
• Offset measurement accurate to fractions of a second
• Rate calculation in seconds per day (s/day)
• Minute correction for fine-tuning results

WATCH COLLECTION
• Manage your entire watch collection in one place
• Add photos, brand, model, movement & serial number
• Track each watch's accuracy individually
• Set and compare against accuracy standards

INDUSTRY STANDARDS
• COSC Chronometer (-4/+6 s/day)
• METAS Master Chronometer (0/+5 s/day)
• Rolex Superlative (-2/+2 s/day)
• General Mechanical (-20/+40 s/day)
• See at a glance if your watch meets certification standards

ANALYTICS & TRENDS
• Offset deviation charts over time
• Daily rate trend visualization
• 7 and 30 day views included for every watch
• Summary statistics with averages, min & max values

UNRUH PRO — ONE-TIME PURCHASE, NO SUBSCRIPTION
• Unlimited watches (free version: up to 3)
• Position tracking: log how each watch rested — dial up, dial down, crown left, crown up, crown down, or on the wrist
• Best resting position analysis: find the position that compensates your watch's rate
• Full history: 90 day and all-time charts
• CSV export for your records
• Pay once, keep it forever — and all future Pro features are included

DIAGNOSTICS
• Timegrapher (Beta): live beat rate and seconds/day via the microphone — free
• Magnetism check using the built-in magnetometer — free

BUILT FOR WATCH ENTHUSIASTS
• Elegant dark mode design with gold accents
• Haptic feedback for precise measurements
• Daily measurement reminders
• Full German & English localization

Whether you're a seasoned collector or just curious about your first automatic — Unruh is the precision tool your watches deserve.

## Key features

- Atomic time reference
- Precision offset measurement
- Watch collection management
- Industry standard comparison
- Accuracy trend visualization
- Timegrapher diagnostic tool
- Magnetism check

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unruh Pro | $5.99 | one-time |
| An Espresso | $1.99 | one-time |
| Coffee & Cake | $8.99 | one-time |
| A Cappuccino | $3.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/unruh-watch-accuracy/id6760858048/reviews.md

### 5/5 — Zuverlässiges Uhrenmanagement

*2026-04-30*

Mit der Zeit habe ich so an die 10 „Schätze“ angesammelt. Wenn ich die Schachtel der Uhren nach langer Zeit öffne graust es mir wie verkehrt die Uhrzeiten wieder laufen. Mit dieser App kann ich endlich jederzeit beobachten und abschätzen wie meine Uhren laufen. Wenn ich eine Uhr verleihe, sehe ich ob diese umgestellt wurde und kann ggf. bei der Person nachhaken. Die gibt mir so viel Klarheit. Ich kann die App nur empfehlen!

**Developer response:** Schön, dass die die App gefällt. Danke für die Bewertung.

## Frequently asked questions about Unruh

### How does Unruh measure watch accuracy?

Unruh measures accuracy by comparing your mechanical watch to an atomic reference time (NTP). You tap when your second hand hits 12, and the app calculates the deviation in seconds per day (s/day).

### What are the limitations of the free version of Unruh?

The free version of Unruh allows you to manage up to 3 watches. For unlimited watch management and advanced features like position tracking and CSV export, a one-time purchase of Unruh Pro is available.

### Does Unruh have ads?

No, Unruh is ad-free. The app is available for free, with an optional one-time purchase for Pro features.

### What industry standards can Unruh compare watches against?

Unruh allows you to compare your watch's accuracy against standards such as COSC Chronometer (-4/+6 s/day), METAS Master Chronometer (0/+5 s/day), Rolex Superlative (-2/+2 s/day), and General Mechanical (-20/+40 s/day).

### What diagnostic tools are available in Unruh?

Unruh offers a free Timegrapher (Beta) feature that uses your microphone to measure live beat rate and seconds/day. It also includes a free magnetism check using the device's built-in magnetometer.

### How often is Unruh updated?

The latest version of Unruh, 1.1.0, was released on June 12, 2026. Updates are released periodically to improve features and reliability.

### What devices does Unruh support?

Unruh is currently supported on iPhone devices. It is designed for iOS operating systems.

### What is the age rating for Unruh?

Unruh has an age rating of 4+, making it suitable for users of all ages. The app's content is appropriate for children and adults.

## Version history (last 5 releases)

### 1.1.1 — 2026-07-06

Removing a watch is now simple, and you can choose how you capture each measurement.

- Delete a watch directly from its detail screen. Deletion is reliable and also removes that watch's measurements.
- Set up faster: after onboarding you can add your first watch straight from the dashboard.
- Choose your capture style in Settings. Keep tapping when the second hand hits 12, or turn on hold-and-release so you simply let go at the exact moment.
- Measurements are timed more precisely, because Unruh now reads the exact instant your finger acts rather than a moment later.
- Also fixed: tip names appear in your language, and a couple of German labels are corrected.

### 1.1.0 — 2026-06-12

Unruh Pro is here - and your watches get position tracking.

• Unruh Pro (one-time purchase, no subscription): unlimited watches, position tracking, full 90-day and all-time history, CSV export - all future Pro features included.
• Position tracking: log how a watch rested since the last measurement (dial up, crown left, on the wrist and more).
• Best resting position: statistics now reveal which position compensates your watch's rate.
• Tip jar: enjoying Unruh? You can now leave a small thank-you in the settings.
• The free version keeps everything you use today: measuring, standards, 7/30-day charts, timegrapher (beta) and magnetism check.

### 1.0.2 — 2026-06-07

Klügere Messung und durchgehend lokalisierte Erfahrung.
  
  - Messung schlägt jetzt die nächste volle Minute als Zielzeit vor. Tippe genau, wenn der Sekundenzeiger die 12 erreicht.
  - Diagnose: Eine Zeitwaage über das Mikrofon (Beta) für Live-Schlagzahl und Gang, plus eine Magnetismus-Prüfung über das
  Magnetometer.
  - Dashboard: Tippe auf den Namen deiner Uhr, um zwischen Uhren zu wechseln.
  - Uhr-Identität vereinfacht auf Hersteller und Modell. Der optionale Spitzname ist entfallen.
  - Plausibilitätsprüfung: Auffällige Messungen, bei denen die Zielzeit klar in der Vergangenheit lag, zeigen jetzt einen Hinweis
   statt einer fälschlich gültigen Toleranz-Bestätigung.
  - Statistik: Übersichtlichere Achsenbeschriftungen ohne überlappende Labels.
  - Vollständige deutsche Lokalisierung der gesamten App, inklusive der neuen Diagnose-Funktionen.

### 1.0.1 — 2026-04-21

**Bug fixes (DE):**

* Measurement now also works with deviations of over 59 seconds. Before tapping, you simply enter the time your watch is currently showing — second-level accuracy still comes from tapping at 12.
* New “Resynchronize” button directly in the measurement view — resets the baseline instantly without any detour.
* The dashboard now displays the result immediately after saving.
* Content in Statistics, Settings, Collection, and Details is no longer hidden by the tab bar.

### 1.0 — 2026-03-24

No release notes.

## More apps by Noel Weinberg

- [99 Plates: Recipes & Roulette](https://appshunter.io/ios/app/99-plates-recipes-and-roulette/id6747975811)
- [Trinki: Water Reminder Tracker](https://appshunter.io/ios/app/trinki-water-reminder-tracker/id6748217192)
- [Erstatto - PKV & Beihilfe](https://appshunter.io/ios/app/erstatto-pkv-and-beihilfe/id6748588315)
- [Polly: Pollen & Allergie](https://appshunter.io/ios/app/polly-pollen-and-allergie/id6760858786)
- [Gubox: Vouchers & Gift Cards](https://appshunter.io/ios/app/gubox-vouchers-and-gift-cards/id6760893030)

All apps by Noel Weinberg: https://appshunter.io/developer/1823665034

---

*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 2026-08-19.*