Comparison

Underlairs vs MELT

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

Head to head
About

Underlairs

Enhance concentration and memory with curated ambient soundscapes and a focus timer. Choose from unique 'Lairs' and track your progress to achieve deep work and productivity goals.

Highlights
  • Focus Timer with customizable durations
  • Beast Mode for continuous music
  • Ambient soundscape playlists
  • Background playback
  • Lock screen controls
  • Stats tracking for focus minutes and streaks
  • Minimalist design
Features
Read full description

Timer and session-based focus workflow: 1. Press play 2. Start the timer & play music 3. Finish a study session Underlairs is focus music for people with ambitious plans. Cinematic, high-intensity soundscapes engineered for deep work — press play, start the timer, and get more done in one session than most people do all day. No lo-fi beach vibes here. This is music for masterminds. FIVE SOUNDSCAPES, ONE MISSION • THE LAIR — Your domain, your default soundscape • BIG DESK ENERGY — Repeal societal expectations and break free • SPACE PIRACY — Fly that spaceship into deep space like you stole it • FLUENT IN FINANCE — Serious people doing serious things • TOXIC INTENSITY — The details of your incompetence is not interesting 60+ original tracks. Zero interruptions. Music designed to keep your brain locked in, whether you're studying, coding, writing, or plotting something bigger. BEAST MODE A focus timer built for real sessions — not just 25-minute sprints. Track deep work sessions up to 24 hours. Start it, disappear into the work, and come back victorious. STATS THAT KEEP SCORE See your focus streaks and total time in the zone. Watch the hours stack up. Evidence of your inevitable rise. WHY UNDERLAIRS • Completely free — every playlist, every feature • No subscription, no ads, no account required • Works offline — all music is on your device • Background playback while you use other apps • Designed for studying, work, coding, reading, and ADHD-friendly concentration Underlairs is free because world domination shouldn't have a paywall. If it helps you get things done, there's a tip jar inside — entirely optional, eternally appreciated. Your lair awaits. Press play and get to work.

About

MELT

This minimalist app visualizes focus time as a flow of color, not numbers. Select your focus duration and choose distracting apps to block. A candy-themed screen melts away to show your progress, with automatic re-blocking after temporary access.

Highlights
  • Focus timer with customizable durations
  • Block distracting apps, categories, and websites
  • Temporary access with auto-reblocking
  • Local session history and focus time tracking
  • Minimalist visual progress indicator
  • Multi-language support
Read full description

MELT is a minimalist focus app that turns time into a visual flow instead of another number to watch. Choose a focus duration and the apps you want to block. A candy-colored screen slowly melts as the session moves forward, while Apple's Screen Time technology shields the apps and categories you selected. Key features • 15, 25, 45, or 60-minute presets, plus custom durations up to 12 hours • Choose apps, categories, and websites to block • One temporary 3-minute unlock per focus session • Automatic re-blocking after 3 minutes, even in the background • On-device history for completed and ended sessions • Five candy colors • Korean, English, Japanese, Simplified Chinese, and Traditional Chinese • No ads, accounts, analytics, or tracking All history and settings stay on your device. Screen Time permission is required to use app blocking.

Screenshots

Underlairs4 screens
MELT4 screens

Verdict

The call

The clearest difference is price: Underlairs at Free against MELT's $2.99. MELT's advantage is in-app purchases (none vs 3) and update cadence (daily vs every 3 weeks). On review sentiment, ads, 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

Underlairs is free to download; MELT costs $2.99 up front. Underlairs sells 3 in-app purchases, starting at $0.99 per month. MELT asks for nothing beyond the download.

UpkeepUpdate frequency

Underlairs ships an update every 3 weeks, MELT daily. The most recent releases landed on October 9, 2026 and October 21, 2026 respectively.

Scorecard4 real differences · 6 level
Underlairs versus MELT: the parameters behind the verdict, then further details
ParameterUnderlairsMELT
PriceFree — better$2.99
Rating5.0 (7 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings7 — better—
Update frequencyEvery 3 weeksDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size230 MB23 MB
Age rating4+4+
DeveloperJohn JangMINSUK SONG

Customer experience

Underlairs

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

MELT

Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Underlairs

Subscriptions2
  • Monthly Premium$0.991 Month
  • Yearly Premium3 Days trial$9.991 Year
One-time1
  • Premium Lifetime Access$17.99
None

MELT

No in-app purchases

Questions

Is Underlairs free?
Underlairs is free to download, with in-app purchases available.
Is MELT free?
MELT costs $2.99, with no in-app purchases.
Do Underlairs or MELT have ads?
Neither Underlairs nor MELT shows ads.
Which is updated more often, Underlairs or MELT?
Underlairs ships an update every 3 weeks, and MELT daily. Most recently, Underlairs was updated on October 9, 2026 and MELT on October 21, 2026.

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