# ChronoCheck — AI Watch Check and Portfolio

> AI luxury watch authentication, market value tracking, and portfolio management. (iPhone/iPad app by Marcus Gier.)

- Source: https://appshunter.io/ios/app/chronocheck/id6760113295 (this page in markdown: same URL + `.md`)
- Developer: [Marcus Gier](https://appshunter.io/developer/1882698891)
- Category: Business, Lifestyle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 38 MB
- Languages: American English
- Released: 2026-04-08
- Data updated: 2026-08-07
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/chronocheck/id6760113295/reviews.md

## What is ChronoCheck?

ChronoCheck – AI Authentication & Market Value for Luxury Watches
The smartest watch app for collectors, buyers and sellers. AI-powered authentication in seconds, live market value tracking, professional portfolio management and a unique collector game – all in one app. Developed by a certified watch expert, for everyone who takes watches seriously.

AI AUTHENTICATION
Just take a photo – seconds later you'll know whether your Rolex, Omega, Patek Philippe or one of 18 other top brands is genuine. Our AI draws on over 1,000 database references, continuously expanded with expert knowledge from a certified appraisal office. Subtle dial deviations, incorrect case finishing, flawed engravings – ChronoCheck detects what the naked eye misses.

Pre-Check before buying
NEW About to buy privately or from a marketplace? Send the seller a Pre-Check link. They upload photos — you get an AI verdict in under a minute, before transferring money.▸ Listing-Check for eBay & Kleinanzeigen Paste a listing URL — photos are loaded automatically, AI verifies authenticity.

PORTFOLIO & MARKET VALUE
Real-time market values from 4 independent sources (Chrono24, eBay & others). Interactive value chart over months and years. Profit/loss analysis per piece and total portfolio. Multi-currency: EUR, USD, CHF. Push notifications for significant price movements.

TIMEGRAPHER 2.0 (Premium)
Professional rate measurement on your iPhone – no expensive equipment needed. Microphone mode with live diagram, optical photo measurement synced to atomic clock, measurement history with trend analysis and drift alerts, 6-position test (DU/DD/CR/CL/CU/CD), automatic calibre detection.

WATCH GAME (NEW)
Rate other collectors' watches, earn points, badges and streaks. 11 achievements, 6 levels from Rookie to Legend, global leaderboard. Daily streak bonuses, credits redeemable for premium features. Fully anonymous via auto-generated nicknames.
PURCHASE LEADS
Upload photos, receive non-binding offers from verified dealers – no marketplace stress, no negotiation pressure.
EXPERT REVIEW
A certified appraiser examines your watch personally and delivers a written expert opinion including authenticity and market value assessment. Just 14.99 EUR per review.
PRICING
Free: 2 analyses, watchlist & community access
Basic (4.99 EUR/month): 10 analyses, detailed indicators
Pro (14.99 EUR/month): 40 analyses, full database, priority support
Single analysis: 0.99 EUR on demand – no subscription needed
About ChronoCheck: Operated by the appraisal office of Marcus Gier in Cologne – over 10 years of professional watch authentication experience. Every analysis is based on genuine expert knowledge, not algorithms alone.
Privacy: Images are transmitted encrypted and never stored or shared. Fully GDPR-compliant from day one.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- AI-powered watch authentication
- Real-time market value tracking
- Professional portfolio management
- Collector game with leaderboards
- Purchase lead generation
- Timegrapher 2.0 for rate measurement

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| ChronoCheck Basic | $3.99 | per month |
| ChronoCheck Pro | $12.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 1 Expert Review | $17.99 | one-time |
| AI Analysis | $0.99 | one-time |


## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/chronocheck/id6760113295/reviews.md

### 5/5 — Best AI Watch Authentication App

*2026-07-03*

ChronoCheck is an excellent app for luxury watch collectors. The AI watch authentication is quick, and the market value estimates help me stay informed before buying or selling. A must-have watch app.

### 5/5 — Professionell und super freundlich

*2026-04-19*

Professionell und gleichzeitig ganz einfach zu bedienen - eine tolle App und ein super freundlicher Service - ganz herzlichen Dank!

**Developer response:** Vielen Dank für die tollen Worte! Genau dafür haben wir ChronoCheck gebaut – professionelle Authentifizierung, die sich trotzdem einfach anfühlt. Freut uns riesig, dass Sie das so erleben. Bei Fragen sind wir jederzeit für Sie da.

Herzliche Grüße aus Köln
Marcus & das ChronoCheck-Team

### 1/5 — Funktioniert nicht wirklich

*2026-04-14*

Der Versuch über ein paar Fotos, die von „KI“ und ggf. ein paar „Experten“ der Community begutachtet werden, die Echtheit einer Uhr zu bestimmen, ist vom Grundsatz her schon unsinnig. Dementsprechend vage war letztendlich dann auch die Aussage.

**Developer response:** Vielen Dank für Ihr Feedback. Wir möchten klarstellen: ChronoCheck ersetzt  keine professionelle Echtheitsprüfung durch einen Sachverständigen das kommunizieren wir auch transparent in der App. Unsere KI-Analyse liefert eine erste Einschätzung auf Basis visueller Merkmale und einer Datenbank bekannter Fälschungsmerkmale. Bei unklaren Ergebnissen empfehlen wir ausdrücklich eine physische Begutachtung. Die Technologie entwickelt sich stetig weiter, und wir arbeiten kontinuierlich an der Verbesserung unserer Erkennungsrate. Falls Sie konkrete Verbesserungsvorschläge haben, freuen wir uns über eine Nachricht an kontakt@chronocheck.de

### 5/5 — Sehr guter Service

*2026-04-10*

Ich habe eine Rolex Daytona aus 1983 (6263) vererbt bekommen. Ich hatte Zweifel an der Echtheit dieser Uhr. In einem ersten Online-Check wurde diese Uhr als Echt ausgewiesen, aber eine wirklich Garantie kann mir nur der professionelle Blick des Appbetreibers gewährleisten. Daher habe ich für die Bewertung der Uhr gestern gleich einen Termin abgemacht. Bisher bin ich von der Art und Weise, sowie dem seriösen Entgegentreten des Herrn sehr positiv beeindruckt. Sobald es ein Ergebnis gibt, werde ich das gleich hier veröffentlichen. Die App scheint, den Aussagen nach aber richtig zu liegen, da der KI essentielle Merkmale beigebracht wurden und diese stimmen, nachdem der Betreiber die hochgeladenen Bilder betrachtete, alle zu 100% überein. Wie bereits gesagt: Bis hierher wirklich TOP.

**Developer response:** Vielen Dank für Ihre ausführliche und ehrliche Bewertung – das bedeutet mir sehr viel! Die Rolex Daytona Ref. 6263 aus 1983 ist eine absolut faszinierende Uhr, und ich freue mich, dass der erste digitale Check bereits so stimmige Ergebnisse geliefert hat. Genau das ist das Ziel von ChronoCheck: KI und professionelle Expertise . Ich bin gespannt auf unseren Termin und freue mich darauf, Ihnen ein abschließendes, fundiertes Ergebnis zu liefern. Bis bald!

### 5/5 — Sehr gut

*2026-04-09*

Coole App, schön übersichtlich und einfach zu bedienen. Hilft sehr, vor allem, wenn man keine Ahnung von Uhren hat.

**Developer response:** enau das ist der Punkt – ChronoCheck soll auch ohne Vorwissen funktionieren. Danke fürs Feedback! ⌚

### 5/5 — Endlich!

*2026-04-09*

Diese App ist für mich als absolute Uhrenliebhaberin perfekt. Ich kann direkt meine kleinen Funde auf Märkten und bei Nachfragen von Familie&Freunden den ersten Check up durchführen und weiß wohin die Richtung geht. Falls notwendig dann erst ein Gutachten machen lassen. Außerdem hilft die App mir mein eigenes Wissen zu verbessern. Coole Sache!

**Developer response:** Genau für diesen Anwendungsfall wurde ChronoCheck entwickelt – der erste ehrliche Blick, bevor man tiefer einsteigt. Schön zu hören, dass die App auch beim eigenen Lernprozess hilft. Danke für die tolle Rückmeldung!

### 5/5 — Überraschend einfach

*2026-04-09*

ChronoCheck ist ein wirklich übersichtliches und einfach zu bedienendes Tool - besser geht es nicht!

**Developer response:** Freut uns sehr – Übersichtlichkeit war von Anfang an ein klares Ziel. Danke für das Feedback, es spornt an! 🙏

## Frequently asked questions about ChronoCheck

### How does ChronoCheck authenticate watches?

ChronoCheck uses AI that draws on over 1,000 database references, continuously expanded with expert knowledge from a certified appraisal office. It can detect subtle dial deviations, incorrect case finishing, and flawed engravings.

### Can ChronoCheck track the market value of my watches?

Yes, ChronoCheck provides real-time market values from 4 independent sources, including Chrono24 and eBay. It also offers interactive value charts and profit/loss analysis for your portfolio.

### What is the Timegrapher 2.0 feature in ChronoCheck?

Timegrapher 2.0 is a premium feature that allows professional rate measurement of watches directly on your iPhone. It includes microphone mode with live diagrams, optical photo measurement, and trend analysis.

### How does the ChronoCheck collector game work?

The collector game allows users to rate other collectors' watches, earn points, badges, and streaks. It features achievements, levels, a global leaderboard, and daily streak bonuses.

### What are the pricing tiers for ChronoCheck?

ChronoCheck offers a free tier with 2 analyses and community access. Paid tiers include Basic for $3.99/month with 10 analyses and Pro for $12.99/month with 40 analyses and priority support. Single analyses are available for $0.99.

### Is ChronoCheck available on Android devices?

Based on the provided data, ChronoCheck is currently supported on iPhone and iPod devices. Information regarding Android compatibility is not available.

### How often is ChronoCheck updated?

The app was last updated on June 15, 2026, with version 1.0.6. This indicates a recent update, suggesting ongoing development and maintenance.

### Is ChronoCheck safe for children?

ChronoCheck has an age rating of 4+, making it suitable for younger users. The app also emphasizes privacy, with images transmitted encrypted and never stored or shared, ensuring GDPR compliance.

## Version history (last 5 releases)

### 1.0.7 — 2026-08-05

More reliable sign in: you stay logged in. Improvements to purchases and subscription restore. Minor bug fixes.

### 1.0.6.1 — 2026-07-05

NEW: Portfolio is now free — add your first watches at no cost and track their value like a stock portfolio.

• Price alerts straight from your analysis result: watch the market value and get notified when it moves
• Refer a friend: share your code — you both get 3 free analyses
• Redesigned Premium overview
• Minor bug fixes and copy improvements

Feedback? kontakt@chronocheck.de

### 1.0.6 — 2026-06-15

What's new in this update: ChronoCheck is now built for dealers too – and our market value and collector data are richer and more detailed than ever.

NEW: Dealer area
Trade-in and inventory sync now happen right inside the app. Securely link your dealer account via token to manage your stock, keep an eye on how your watches' prices move and receive matching buy leads – all in one place. The new dealer hub takes you to the inventory price monitor and data sync in a single tap.

Market value in detail – now per reference
For every single reference we now show in-depth market value sections: the current median from several independent sources and real auction results, price development over time, plus trend and momentum. Brand new are the ChronoDex top movers at reference level – so you can see at a glance which models are rising or falling in value right now.

More collector knowledge
Serial-number ranges, production changes and model variants are now presented cleanly and clearly. Solid knowledge that gives you real confidence when buying, selling and valuing.

Now multilingual
Market value details, collector data and all labels are now available in German, English and French – matched to your language.

Polish & usability
A consistently iOS-native design, a tidy "More" menu in your portfolio and clearer navigation. Plus many improvements to stability, speed and accuracy.

The core stays as strong as ever: scan any luxury watch in seconds, spot fakes and see its real, up-to-date market value. So you can buy and sell with total confidence.

Your feedback makes ChronoCheck better – reach us anytime right from the app. Enjoy the update!

### 1.0.6 — 2026-06-15

What's new in this update: ChronoCheck is now built for dealers too – and our market value and collector data are richer and more detailed than ever.

NEW: Dealer area
Trade-in and inventory sync now happen right inside the app. Securely link your dealer account via token to manage your stock, keep an eye on how your watches' prices move and receive matching buy leads – all in one place. The new dealer hub takes you to the inventory price monitor and data sync in a single tap.

Market value in detail – now per reference
For every single reference we now show in-depth market value sections: the current median from several independent sources and real auction results, price development over time, plus trend and momentum. Brand new are the ChronoDex top movers at reference level – so you can see at a glance which models are rising or falling in value right now.

More collector knowledge
Serial-number ranges, production changes and model variants are now presented cleanly and clearly. Solid knowledge that gives you real confidence when buying, selling and valuing.

Now multilingual
Market value details, collector data and all labels are now available in German, English and French – matched to your language.

Polish & usability
A consistently iOS-native design, a tidy "More" menu in your portfolio and clearer navigation. Plus many improvements to stability, speed and accuracy.

The core stays as strong as ever: scan any luxury watch in seconds, spot fakes and see its real, up-to-date market value. So you can buy and sell with total confidence.

Your feedback makes ChronoCheck better – reach us anytime right from the app. Enjoy the update!

### 1.04.2 — 2026-04-29

Pre-Check before buying — new protection for private deals 

NEW: Pre-Check for someone else's watch Before you buy privately or from a marketplace — request a Pre-Check. You get a link, the seller opens it and uploads photos, and you receive the AI verdict in under a minute. Works directly with eBay and Kleinanzeigen listings. 

Fresh look New gold pictograms throughout the interface — Home, Account, Side Menu. Larger touch targets on the scanner and quick tiles. 
Clearer pricing Expert Review now shows €14.99 directly instead of token math. Duplicate buttons on the result screen are gone.

Stability Crash fixes, faster load times, lower memory usage. Enjoy the new version!

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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 2026-08-07.*