Comparison

WORN vs ChronoDiary

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

WORN

Manage your watch collection, track wear days, and analyze cost per wear. Listen to watch movements for accuracy and virtually try on timepieces with AI.

Highlights
  • Digital watch collection management
  • Wear day tracking and diary
  • Cost per wear analysis
  • Mechanical watch movement listening
  • Virtual watch try-on with AI
  • Watch discovery and ranking
Features
Read full description

WORN is a companion and wear tracker for a watch collection: the pieces you own, the days you wear them, and the ones you are still deciding about. THE GRAND TOUR OF TIME Travel through the history of timekeeping, from a baboon bone with 29 notches to the quartz second: 109 hand-drawn stops, each a short chapter with the real story behind it. Eleven are free to play, a chapter of the day opens with your wrist check, and the Grand Tour Pass opens every stop for good. WORN Premium includes every stop. THE COLLECTION Every watch sits on its own cushion in a box you arrange yourself, the way a collector would. Behind each piece: photos, box and papers, purchase price, service history, and the movement inside it. The investment view divides what you paid by the days you actually wore it: cost per wear is the honest number, and it usually argues for wearing more, not buying more. THE DIARY A calendar of every wear, written by tapping the watch you put on. Journal entries, a streak drawn as a mainspring you keep wound, and charts of rotation, brands and value that draw themselves in as you scroll. LISTENING Rest your iPhone against the caseback of a mechanical or automatic watch and WORN listens to the movement's beat like a timegrapher, then answers the only question you actually have: is it running well? Drift is reported in seconds a day and kept as an accuracy log per watch, so you can watch a service coming instead of being surprised by it. DISCOVER Ten watches a night, drawn from a catalogue of 46,000 pieces and presented one at a time from a closed tray. It is not a feed: when the ten are judged, the tray is done for the night. Tap any card and the piece gets a study page: a monograph on the watch, its movement, its maker and its material: a page of horology, not a product listing. Keep what deserves it, rank your keeps from Grail down to Pass, and search the shortlist once it grows past easy remembering. TRY IT ON FIRST One photo of your wrist, scaled by your wrist measurement, so a 36 mm dress watch and a 44 mm diver land differently on the same arm: a fitting, not a picture. An optional AI render arrives as an instant print that develops on screen, with its size check written on the border; Credits are charged only when a picture actually comes back. Everything you try on is kept: a gallery in Discover, and a "Tried on" strand in the Diary that is never counted as a wear. AI, ONLY WHEN YOU ASK Point the camera at a watch and WORN identifies it. Photograph today's outfit and the Mirror picks the watch to wear with it. No photo leaves your device in the background: every AI feature is a deliberate tap, covered by a consent you can withdraw in Settings at any time. WHAT IT COSTS The collection box, the diary and listening are free, and every watch you add has a Slot. AI actions cost Credits, bought in small packs (30, 120 or 350) that never expire; a new install starts with 20. WORN Premium is optional: 75 Credits every month (about 15 wrist renders or 7 outfit pairings), and what you don't use rolls over. Loupe, Vitrine and Darkroom, the premium camera films, cost 5 Credits for each print you keep, included with Premium. The Grand Tour Pass is a one-time purchase. PRIVACY, PLAINLY Your watches, wear diary and recordings live on your device and in your own private iCloud database, which we cannot read. The privacy policy names every service the app talks to and exactly what each one receives. If something is broken, tell us from inside the app: the feedback form shows you the diagnostics it will attach before you send it. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://worn.club/privacy Community Guidelines: https://worn.club/guidelines

About

ChronoDiary

Features
Read full description

ChronoDiary is the ultimate digital companion for luxury watch enthusiasts, collectors, and horology experts. Whether you want to stay updated with the latest watch news, build your first collection, or manage an extensive archive of rare timepieces, ChronoDiary provides all the tools and content you need in one elegant application. Daily Horology News & Articles Immerse yourself in the world of haute horlogerie. ChronoDiary delivers the latest watchmaking news, industry trends, and in-depth articles right to your screen. Stay informed about new releases, auction results, and stories behind iconic timepieces from the global watch community. AI-Powered Watch Scanner Instantly identify luxury watches by simply taking a photo. Our advanced AI scanner analyzes the dial, bezel, and case to recognize the brand, model, and reference number, saving you hours of manual research. Comprehensive Watch Catalog Explore an ever-growing database of the world’s most prestigious watchmaking brands. Access highly detailed specifications including caliber details, case materials, water resistance, glass types, and historical data. Manage Your Personal Collection Digitally archive the watches you own. Track the condition, acquisition dates, and reference numbers of your timepieces in a beautifully designed, minimalist interface. Keep your entire collection right in your pocket. Real-Time Market Valuation Stay updated with the secondary market. ChronoDiary provides estimated market valuations and historical price trends for cataloged watches, helping you make informed buying, selling, or trading decisions. Curate Your Wishlist Found your next grail watch? Add it to your personal Wishlist with a single tap. Keep track of the models you are hunting for and monitor their market values until you are ready to acquire them. Secure & Cloud-Synced Your data is precious. ChronoDiary uses secure third-party authentication (Google & Apple Sign-In) to ensure your collection and wishlist are safely backed up in the cloud. Access your horological archive and daily news from any device, anywhere. Elevate your watch collecting journey and stay connected to the culture. Download ChronoDiary today and carry the entire world of horology in your pocket.

Screenshots

WORN4 screens
ChronoDiary4 screens

Verdict

The call

The clearest difference is in-app purchases: ChronoDiary at none against WORN's 5. ChronoDiary also leads on device support (3 vs 1) and iOS requirement (15.5 vs 18.0). WORN's advantage is update cadence (fortnightly vs every 6 weeks). On price and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. WORN sells 5 in-app purchases, starting at $6.99 per month. ChronoDiary asks for nothing beyond the download.

UpkeepUpdate frequency

WORN ships an update fortnightly, ChronoDiary every 6 weeks. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.

Scorecard4 real differences · 6 level
WORN versus ChronoDiary: the parameters behind the verdict, then further details
ParameterWORNChronoDiary
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyFortnightly — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.015.5 — better
Further details — not scored
Size188 MB60 MB
Age rating4+4+
DeveloperRishab GuptaCAT Bilgi Teknolojileri

In-app purchases

5 purchases

WORN

Subscriptions2
  • WORN Premium$6.991 Month
  • WORN Premium$69.991 Year
One-time3
  • 30 Credits$3.00
  • 120 Credits$10.00
  • 350 Credits$25.00
None

ChronoDiary

No in-app purchases

Questions

Is WORN free?
WORN is free to download, with in-app purchases available.
Is ChronoDiary free?
ChronoDiary is free to download, with no in-app purchases.
Do WORN or ChronoDiary have ads?
Neither WORN nor ChronoDiary shows ads.
Which is updated more often, WORN or ChronoDiary?
WORN ships an update fortnightly, and ChronoDiary every 6 weeks. Most recently, WORN was updated on October 14, 2026 and ChronoDiary on October 5, 2026.

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