Comparison

Clo vs Watch Brain

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

Head to head
About

Clo

Features
Read full description

Clo-E is much more than a clock: it’s a living design object, elegant and always in motion. Designed for the night, perfect on a bedside table and ideal on a desk, Clo-E transforms iPhone and iPad into a refined, silent and mesmerizing analog display. And if you have an old iPhone or iPad you no longer use, Clo-E can give it a new purpose by turning it into an elegant ambient clock. Why you’ll love Clo-E – Essential analog clock face with no distractions – Carefully crafted colors, virtual materials and a consistently clean look – A night mode that’s especially pleasant to watch – Smooth animations and a style that adapts to any environment A clock that lives with you Every hour, Clo-E can automatically change the color, design and materials of the clock face: a subtle aesthetic touch that keeps it dynamic and surprising without ever becoming distracting. Perfect at any time – On your bedside table as you fall asleep – On your desk or at the office – In the living room or other spaces around the home – Anywhere you want to turn iPhone or iPad into a discreet and original design element Clo-E Premium Try Clo-E Premium free for 5 days and discover exclusive colors, materials, designs, Auto-Style, Night Dimmer and 6 saved styles. No subscription. No automatic renewal. If you decide to continue, Premium is available with a single one-time purchase.

About

Watch Brain

Features
Read full description

Watch Brain is the watch enthusiast's essential companion: photograph any watch and receive an AI-powered identification of make, model, reference number, approximate year, and current market value range β€” in under 10 seconds. IDENTIFY ANY WATCH Point your camera at a dial, wrist shot, or caseback. Watch Brain's on-device AI returns the best-guess identification with key details and a confidence score. Whether you're evaluating a vintage find at a flea market or curious about a piece in a friend's collection, you'll know in seconds. TRACK YOUR COLLECTION LIKE A CURATOR Build a meticulous collection record β€” photos, purchase price, current estimated value, condition, box and papers status, provenance notes, and service history for every piece. Your collection deserves better than a spreadsheet. MARKET VALUATIONS Know what your watches are worth based on current Chrono24 and WatchCharts market data. Watch the value of your collection rise and fall with the market. SERVICE LOG Record every service visit β€” watchmaker, work performed, cost. Watch Brain surfaces reminders when a watch is approaching its recommended service interval. REFERENCE DEEP-DIVES Each identification links to a magazine-style reference page: production history, notable variations, key collector details, and counterfeit tells. Content you'll return to. NEW β€” COLLECTION ANALYTICS & TRENDS See your collection like an asset class: total value over time, per-watch gain and loss versus what you paid, allocation by brand, and the month's biggest mover β€” with an AI-written summary of where your collection stands. NEW β€” HOME & LOCK SCREEN WIDGETS + LIVE ACTIVITIES Keep "today's wear," your collection value, and the next service due one glance away. Start a Live Activity for the watch on your wrist today. NEW β€” AI DOSSIER & PDF/CSV EXPORT Generate a full collection dossier β€” per-watch spreads with photos, provenance, and valuation basis β€” or export clean CSV for your insurer, spreadsheet, or estate planning. NEW β€” SMART REMINDERS Proactive nudges that actually reach you: service overdue, warranty expiring, and notable market moves in your collection. NEW β€” iCLOUD SYNC Your collection follows you across iPhone and iPad automatically. No account, no login β€” it just works with your iCloud. AUTHENTICITY FLAGS (Connoisseur) Photograph a suspect watch and surface known visual red flags for that reference: dial inconsistencies, cyclops misalignment, rehaut anomalies, and more. This is not authentication β€” but it is the most informed starting point for due diligence. INSURANCE-READY REPORTS (Connoisseur) Generate a professional valuation summary for your insurer β€” every piece, its condition, its value range, and the basis for valuation. FREE 3 identifications per month, 1 watch in collection, basic reference information. COLLECTOR ($9.99/mo or $79/yr) Unlimited identifications, collection up to 50 watches, market valuations, service log. CONNOISSEUR ($19.99/mo or $179/yr) Unlimited collection, insurance reports, monthly market updates, authenticity checker. CURATOR ($29.99/mo or $299/yr) Everything in Connoisseur plus full collection analytics & trends, AI dossier with PDF/CSV export, full smart reminders, and full widgets & Live Activities. Note: Watch Brain uses AI for visual identification and valuation estimates. Results are not authentication. Consult a certified specialist before any purchase decision. β€”β€”β€” Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://brainrash.com/apps/watch-brain/privacy

Screenshots

Clo4 screens
Watch Brain4 screens

Verdict

The call

The clearest difference is iOS requirement: Clo at 17.6 against Watch Brain's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Clo sells 1 one-off in-app purchase and Watch Brain sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Clo ships an update every 5 weeks, Watch Brain every 2 months. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

Scorecard1 real difference Β· 5 level
Clo versus Watch Brain: the parameters behind the verdict, then further details
ParameterCloWatch Brain
PriceFreeFree
Update frequencyEvery 5 weeks β€” betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad β€” betteriPhone
Requires iOS17.6 β€” better26.0
Further details β€” not scored
Size4 MB7 MB
Age rating4+4+
DeveloperMassimo RussoJustin Pruskowski

In-app purchases

1 purchases

Clo

One-time1
  • Clo-E Premium$2.99
3 purchases

Watch Brain

Subscriptions2
  • Collector Monthly$4.991 Month
  • Collector Annual$29.991 Year
One-time1
  • Watch Brain Lifetime$49.99

Questions

Is Clo free?
Clo is free to download, with in-app purchases available.
Is Watch Brain free?
Watch Brain is free to download, with in-app purchases available.
Do Clo or Watch Brain have ads?
Neither Clo nor Watch Brain shows ads.
Which is updated more often, Clo or Watch Brain?
Clo ships an update every 5 weeks, and Watch Brain every 2 months. Most recently, Clo was updated on October 24, 2026 and Watch Brain on October 14, 2026.

Other comparisons