Comparison

Sereni vs Liminal Clock

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

Head to head
About

Sereni

This app offers customizable white, pink, and brown noise sounds to aid focus, relaxation, or sleep. Its simple interface allows volume adjustment and timer settings for personalized ambient soundscapes.

Highlights
  • White, pink, and brown noise options
  • Customizable volume control
  • Adjustable timer settings
  • Simple and user-friendly interface
  • Minimalistic design
Features
Read full description

Sereni is the simplest way to play calming background sound for sleep, focus, and relaxation. Pick a theme and press play. Ambient gives you five soothing noise colors: White, Pink, Brown, Green, and Deep. Life Sounds brings real recordings of Rain, a Fan, and the Ocean. Lo-Fi adds three original, mellow instrumental beats made for long study sessions. Every sound is set against its own peaceful painted background. Set a sleep timer to drift off and let Sereni stop on its own, with playback that keeps going in the background and full lock-screen controls. Sereni's clean, modern design stays out of your way so you can focus on rest. No clutter, no sign-up — just press play. Features: • Three themes: Ambient, Life Sounds, and Lo-Fi, with a simple switcher at the top of the player • Ambient: White, Pink, Brown, Green, and Deep noise • Life Sounds: Rain, Fan, and Ocean — free for everyone • Lo-Fi (Sereni+): Attic, Corner Booth, and Snowfall — original instrumental beats, no vocals • Next stays inside the theme you chose • Sleep timer with 15, 30, and 60 minute presets or your own duration • Choose a default sound to open to, or pick up where you left off • Background playback with lock screen & Control Center controls • Beautiful, calming backgrounds for every sound • Light, Dark, and System appearance • Designed for accessibility (VoiceOver & Dynamic Type) • Sereni+ home-screen widget: play, pause, and switch sounds without opening the app Want more? Sereni+ is a simple one-time purchase that removes all ads, unlocks the Lo-Fi theme, and adds the home-screen widget — a mini player with live artwork for whatever's playing. Download Sereni and discover the soothing power of sound.

About

Liminal Clock

Features
Read full description

Time doesn’t just tick — it moves. Liminal Clock transforms your iPad into a living canvas of motion and imagination. Each animation is a looping work of art — serene, surreal, or bold — designed to make you feel something every time you glance at the clock. Features • Daily motion art — Free users enjoy 14 rotating animations, while Premium members receive a new animated artwork every day. • Beautifully looping experiences — Time becomes part of the art. • Mark favorites to build your personal gallery of animations. • Optimized for iPad, and works elegantly on iPhone too. • Liminal Clock Premium subscribers get new art daily and full access to the growing gallery. Subscription Unlock Liminal Clock Premium to receive a new animation every day and grow your evolving collection of art. Your iPad becomes more than a clock — it becomes a living gallery. The free version includes 14 captivating works of motion art that cycle daily, offering a new visual experience each day. Upgrade to Liminal Clock Premium to unlock a new animated artwork every single day, expanding your collection endlessly. Step beyond static timekeeping. Discover a world where seconds shimmer, minutes unfold, and hours become moments of wonder. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Sereni4 screens
Liminal Clock3 screens

Verdict

The call

The clearest difference is ads: Liminal Clock at none against Sereni's shown. Liminal Clock also leads on update cadence (every 2 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement 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. Sereni sells 1 one-off in-app purchase and Liminal Clock sells 1 in-app purchase, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Sereni ships an update every 2 months, Liminal Clock every 2 weeks. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 7 level
Sereni versus Liminal Clock: the parameters behind the verdict, then further details
ParameterSereniLiminal Clock
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.5
Further details — not scored
Size57 MB195 MB
Age rating4+12+
Developermichael ortizBraviata LLC

In-app purchases

1 purchases

Sereni

One-time1
  • Sereni Plus$1.99
1 purchases

Liminal Clock

Subscriptions1
  • Liminal Clock Premium - Yearly$19.991 Year

Questions

Is Sereni free?
Sereni is free to download, with in-app purchases available.
Is Liminal Clock free?
Liminal Clock is free to download, with in-app purchases available.
Do Sereni or Liminal Clock have ads?
Sereni shows ads; Liminal Clock does not.
Which is updated more often, Sereni or Liminal Clock?
Sereni ships an update every 2 months, and Liminal Clock every 2 weeks. Most recently, Sereni was updated on October 6, 2026 and Liminal Clock on October 7, 2026.

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