Comparison

OnClock vs Lava Clock

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

Head to head
About

OnClock

Customize your home screen with unique clock widgets. Choose from designer fonts, personalized gradient colors, and adjustable text sizes. Enhance your widget with a background image for a personalized look.

Highlights
  • 20 designer font types
  • Customizable gradient colors
  • Adjustable time and date text size
  • Background image support
  • Home screen widget decoration
Features
Read full description

Decorate your home screen with your own clock widget with OnClock. * Supports 20 types of fonts carefully selected by designers. * You can specify the gradient color yourself. * You can adjust the size of the text for the time and date. * Add a background image to create a cool clock widget. [Contact us] momots_works@naver.com https://onclock-official.blogspot.com

About

Lava Clock

Features
Read full description

Lava Clock - A Captivating Visual Experience for Timekeeping Lava Clock is not just a clock. It's a complete visual experience that transforms time display into a unique aesthetic moment. With dynamic backgrounds, elegant fonts, and fluid animations, your screen becomes a functional work of art. Key Features Stunning Backgrounds Choose from a variety of colorful gradients and background images. The Pro version even allows you to create your own custom gradients and use your favorite photos as backgrounds. Fluid Animations Bring your clock to life with smooth, soothing animations. Adjust the speed and intensity to your preference, or select different effects: waves, pulses, shimmers, spirals, or particles. Integrated Weather Instantly check local weather conditions. Lava Clock displays the current temperature and conditions for your location, with the ability to search for any city in the world. Custom Fonts Personalize the appearance of the time with a wide range of fonts. The Pro version includes exclusive handwritten and artistic fonts for a truly unique style. Smart Themes Let your clock's appearance adapt automatically to the time of day or season, with backgrounds that naturally evolve from morning to evening. Various Display Modes Choose from five different layouts: classic, minimal, digital, analog, or compact, depending on your preferences and needs. Lava Clock Pro Unlock the full creative potential with Lava Clock Pro: Custom backgrounds and use of your own photos Advanced animations with speed and intensity controls Exclusive handwritten and artistic fonts Advanced dynamic themes (day, night, seasonal) Lava Clock is the perfect clock for those who appreciate aesthetics and customization. Transform your device into an elegant time display that reflects your personal style. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Weather Data provided by Apple Weather : https://weatherkit.apple.com/legal-attribution.html

Screenshots

OnClock4 screens
Lava Clock4 screens

Verdict

The call

The clearest difference is in-app purchases: OnClock at none against Lava Clock's 1. OnClock also leads on iOS requirement (14.0 vs 17.0). Lava Clock's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads and device support 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

OnClock costs $0.99 and Lava Clock $0.99 up front. Lava Clock sells 1 one-off in-app purchase. OnClock asks for nothing beyond the download.

UpkeepUpdate frequency

OnClock ships an update every 3 weeks, Lava Clock every 2 days. The most recent releases landed on September 7, 2026 and May 17, 2026 respectively.

Scorecard3 real differences · 7 level
OnClock versus Lava Clock: the parameters behind the verdict, then further details
ParameterOnClockLava Clock
Price$0.99$0.99
Rating2.5 (2 ratings) — better—
Positive reviews62.5% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.0 — better17.0
Further details — not scored
Size13 MB42 MB
Age rating4+4+
DeveloperAHN YOONJIMaxime Pontoire

In-app purchases

None

OnClock

No in-app purchases

1 purchases

Lava Clock

One-time1
  • Unlock Features$3.99

Questions

Is OnClock free?
OnClock costs $0.99, with no in-app purchases.
Is Lava Clock free?
Lava Clock costs $0.99, and also offers in-app purchases.
Do OnClock or Lava Clock have ads?
Neither OnClock nor Lava Clock shows ads.
Which is updated more often, OnClock or Lava Clock?
OnClock ships an update every 3 weeks, and Lava Clock every 2 days. Most recently, OnClock was updated on September 7, 2026 and Lava Clock on May 17, 2026.

Other comparisons