Comparison

Art Clock vs On The Lock

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

Head to head
About

Art Clock

Customize your device with a variety of stylish clock faces and interactive widgets. Enjoy full-screen displays, countdowns to important events, and personalized settings for time and date formats. Available for iPhone and iPad.

Highlights
  • 24 clock face styles
  • Full-screen display mode
  • Home screen widgets
  • Calendar and countdown features
  • Customizable time and date formats
  • Adjustable brightness
Features
Read full description

Choose a clock face and tap to go full screen. Art Clock offers 24 clock faces, from classic flip clocks and dot matrix displays to retro LCD, minimalist, world clock and analog designs. Keep it on your desk or bedside table, or add a matching widget to your Home Screen. • CLOCK FACES Choose from a variety of styles, colors and number designs, with flip and dot animations in the app. • FULL-SCREEN DISPLAY Use your clock in portrait or landscape. Keep the screen awake and adjust the brightness. • HOME SCREEN WIDGETS Choose small, medium or large widgets. Tap a widget to open its clock face. Show seconds on widgets for Digits, Bedside and Minimal. • CALENDARS & COUNTDOWNS See the month at a glance, follow the year's progress in a daily grid, or set an event and count the days until it arrives. Customize the colors for Year and Countdown. • PERSONAL SETTINGS Adjust the time format, date and seconds on supported faces. Each face remembers your choices. Customize the text and background colors of the Solar face. Available for iPhone and iPad. Some clock faces and widgets require PRO, available as a one-time purchase with no subscription.

About

On The Lock

This app allows you to display a single, important note, to-do list, or photo directly on your device's Lock Screen. It offers customization options for text, layout, and background, with features like reminders and iCloud backup.

Highlights
  • Lock Screen memo display
  • To-do list integration
  • Photo display on Lock Screen
  • Customizable layouts and appearance
  • Reminders and D-day tracking
  • iCloud backup
  • Home and Lock Screen widgets
Features
Read full description

On The Lock is a simple memo app that keeps one important thing visible on your Lock Screen. On The Lock helps you keep quick notes, todos, photos, and today’s context where you actually notice them: the Lock Screen. Write a memo the moment it comes to mind, turn it into today’s todos, and keep your next step visible with Live Activity. Use Home Screen and Lock Screen widgets for quick capture and check-off. Add photos for visual context, connect Calendar for today’s remaining events, set a target date/D-day, and customize layouts, colors, text size, alignment, and background skins. Organize with categories, reminders, completed items, archives, iCloud backup, and an option to hide sensitive content while your device is locked. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Art Clock4 screens
On The Lock4 screens

Verdict

The call

The clearest difference is ads: Art Clock at none against On The Lock's shown. Art Clock also leads on review sentiment (100% vs 75%) and iOS requirement (17.0 vs 26.0). On price, update cadence, in-app purchases and monetization model 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. Art Clock sells 1 one-off in-app purchase and On The Lock sells 5 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Art Clock ships an update every 3 days, On The Lock every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Art Clock versus On The Lock: the parameters behind the verdict, then further details
ParameterArt ClockOn The Lock
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews100.0% of reviews — better75.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 3 days — betterEvery 4 days
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS17.0 — better26.0
Further details — not scored
Size8 MB110 MB
Age rating4+4+
Developer振山 董JayApp

Customer experience

Art Clock

Written reviews23 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

On The Lock

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive75.0%
Neutral12.5%
Negative12.5%

In-app purchases

1 purchases

Art Clock

One-time1
  • Art Clock PRO$2.99
5 purchases

On The Lock

Subscriptions2
  • Monthly Premium$1.991 Month
  • Yearly Premium$14.991 Year
One-time3
  • Lifetime Premium (Discount)$12.99
  • Lifetime Premium$19.99
  • Lifetime Premium$34.99

Questions

Is Art Clock free?
Art Clock is free to download, with in-app purchases available.
Is On The Lock free?
On The Lock is free to download, with in-app purchases available.
Do Art Clock or On The Lock have ads?
On The Lock shows ads; Art Clock does not.
Which is updated more often, Art Clock or On The Lock?
Art Clock ships an update every 3 days, and On The Lock every 4 days. Most recently, Art Clock was updated on November 3, 2026 and On The Lock on October 31, 2026.

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