Vellum vs Clockology: Real Faces vs In-App Faces (2026)

Clockology is one of the most loved apps on the Apple Watch — 4.8★ across more than 55,000 ratings, free, and capable of building almost any watch face you can picture. If you’ve seen a jaw-dropping custom Apple Watch face on Reddit, there’s a good chance it was made in Clockology.

There’s one thing about it that people usually discover after they’ve spent an evening building something: a Clockology face isn’t a real watch face, and watchOS will take it off your screen.

That single distinction is what this comparison is about. It isn’t a flaw in Clockology — it’s a consequence of how Apple built watchOS — but it decides which of these two apps is right for you.

We make Vellum. Clockology is a genuinely excellent piece of software and we’ve said so below; every claim about its behavior comes from Clockology’s own documentation.

The Short Version

• Choose Clockology if you want to design your own face down to the pixel, you enjoy the building as much as the wearing, and you don’t mind opening an app to see your creation. It’s free and nothing else gives you that much control.

• Choose Vellum if you want a finished, original design that installs as a real watch face and simply stays there — always-on, no app running, no relaunching.

The One Difference That Decides It

Apple has never opened watch faces to third-party developers — there’s no face API and no third-party face store, and watchOS 27 doesn’t change that. Apps get around it in two fundamentally different ways.

Clockology renders your design inside its own watch app. You open Clockology on your Apple Watch and your creation fills the screen. It looks exactly like a watch face. It is, technically, an app that is drawing one.

Vellum installs a real face file. Tap a design and it goes onto your paired watch as a genuine watchOS face, joining your carousel next to Apple’s own, with complications already placed.

Everything else follows from that.

At a Glance

Checked August 2026.

What Clockology Is Genuinely Great At

It would be dishonest to write this comparison without being clear about how good Clockology is.

• It’s free. Not free-with-a-paywall. Free.

• The editor is extraordinary. Layers, custom images, hands, data fields, conditional elements — you can place anything anywhere. Nothing else on Apple Watch comes close for creative control.

• The community is excellent. A large ecosystem of shared designs, including painstaking recreations of luxury watch dials and Ultra-style layouts.

• It runs on iPhone, iPad and Mac too. You can design comfortably on a big screen.

If designing is the point for you, Clockology is the right answer and no comparison table changes that.

The Trade-Off, in Clockology’s Own Words

Per Clockology’s FAQ, watchOS may return to your normal Apple Watch face when the Clockology app closes, after certain notifications, or after a period of inactivity. The recommended settings are to choose “After 1 Hour” for return-to-clock, and to wake and view Clockology at least once an hour to keep it on screen for longer stretches. Leaving a notification on screen too long can also send the watch back to its standard face, though dismissing notifications reduces that.

The usual workaround is adding a Clockology complication to one of Apple’s stock faces, so you can tap to relaunch quickly.

None of this is Clockology doing anything wrong. watchOS decides what occupies your screen, and an app can only hold it for so long. But it does mean the experience is: raise your wrist, see your normal face, tap to get your design back. For some people that’s a fair price for total creative freedom. For others it’s the reason they stopped using it.

What Vellum Does Differently

Vellum takes the opposite trade. You don’t design anything — you pick from a curated library of 2,000+ original faces across 200+ collections — and in exchange the result behaves like a face Apple shipped.

• It stays. Raise your wrist and it’s there. Notifications don’t dislodge it. No app is running.

• Always-on works normally, including on the live animated faces — with always-on enabled they animate when you tap or hold the face.

• Complications arrive pre-placed and color-matched to the artwork, rather than needing to be positioned — countdowns to any date, plus HealthKit trackers for steps, hydration, caffeine and mindful minutes.

• You can still make your own. The built-in creator turns your own photo into a face with adjustable time placement, or generates one from a text description — and installs it like any curated face.

• Finding one is fast. Filter the library by color swatch, season, holiday or style instead of scrolling.

• It survives everything. Delete the app, and the faces you installed stay on your watch.

• Your iPhone can match. Many collections have a coordinated wallpaper in Vellum’s companion Wallpapers app.

Build It or Browse It

Underneath the technical difference is a simpler question about how you want to spend your time.

Clockology is a canvas. The reward is that the face on your wrist is yours in a way a downloaded one never is. The cost is that you have to make it, and then keep opening an app to see it.

Vellum is a gallery. The reward is that you’re wearing something professionally art-directed thirty seconds after you thought about it, and it stays put. The cost is that you’re choosing rather than creating — though the in-app AI face builder covers some of that ground if you want something specific.

Neither is more legitimate. It just depends whether you want a hobby or a finished object.

You Can Use Both

These two coexist perfectly well, and that’s arguably the best setup. Keep Vellum faces in your carousel as your everyday wear — the one that’s there when you raise your wrist in a meeting — and open Clockology when you want to show someone the elaborate thing you built. Clockology is free, so there’s no cost to keeping it around.

Vellum vs Clockology FAQ

Why does my Clockology watch face keep disappearing?

Because it isn’t a real watch face. Clockology renders your design inside its own watch app, and per Clockology’s FAQ, watchOS returns to your normal face when the app closes, after certain notifications, or after inactivity. The suggested workaround is setting return-to-clock to “After 1 Hour” and waking the app at least once an hour.

Is Clockology a real Apple Watch face?

No. It’s a watch app that draws a face-like display. Apps that install a .watchface file — such as Vellum — produce a genuine watchOS face that joins your carousel and stays there.

Is Clockology free?

Yes, entirely free, which is a big part of its appeal. Vellum is free to download with a new free face every week, and a subscription unlocks the full library.

Does Clockology work with always-on display?

Not the way a real face does. Because the design lives inside a watch app rather than the face layer, it doesn’t behave like a stock always-on face. Faces installed as real face files support always-on normally.

Which is better, Clockology or Vellum?

Clockology is better if you want to design your own face and don’t mind opening an app to see it — its editor is unmatched and it’s free. Vellum is better if you want a finished, original design that installs as a real watch face and stays on screen without any app running.

Do I lose my faces if I delete the app?

With Clockology, yes — the design lives in the app. With Vellum, no. Installed faces are real watchOS faces and remain on your watch regardless.

The Bottom Line

Clockology gives you a canvas and asks you to keep coming back to it. Vellum gives you a finished face and then gets out of the way. The right choice is really about whether the pleasure is in making it or in wearing it.

If you want the one that just stays on your wrist, browse Vellum’s collections or get it on the App Store. If you’re comparing more broadly, see the best Apple Watch face apps of 2026 and Vellum vs Facer. For every option that keeps the face on screen, see best Clockology alternatives.

Sources

Every claim about Clockology on this page comes from Clockology’s own documentation or App Store listing, checked in August 2026. We have described its behavior rather than judged it — if any of this has changed, tell us and we’ll update the page.

• Clockology FAQ: watchOS returning to the standard face when the app closes, after certain notifications, or after inactivity; the “After 1 Hour” return-to-clock recommendation; waking the app hourly; and using a complication to relaunch quickly.

• Clockology on the App Store: rating and rating count, platform support, and that the app is free.

• Apple Support — Share Apple Watch faces: the .watchface mechanism behind real, permanent faces.