Underlairs vs MELT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- 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
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MELT는 시간이 숫자가 아니라 색의 흐름으로 보이는 미니멀 집중 앱입니다. 집중할 시간을 고르고 방해 앱을 선택하면, 캔디 화면이 천천히 녹아내리며 세션의 흐름을 보여줍니다. 집중 중에는 선택한 앱과 카테고리를 Apple 스크린 타임 기술로 차단합니다. 주요 기능 • 15·25·45·60분 또는 최대 12시간 직접 입력 • 방해 앱·카테고리·웹사이트 선택 및 차단 • 세션마다 한 번 제공되는 3분 임시 접근 • 앱이 백그라운드에 있어도 3분 뒤 자동 재차단 • 완료·중단 세션과 집중 시간 로컬 기록 • 다섯 가지 캔디 색상 • 한국어, 영어, 일본어, 중국어 간체·번체 • 광고, 계정, 추적 없음 모든 기록과 설정은 기기 안에 저장됩니다. 앱 차단 기능을 사용하려면 스크린 타임 권한이 필요합니다.
Screenshots
Verdict
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
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.
Underlairs ships an update every 3 weeks, MELT daily. The most recent releases landed on September 7, 2026 and September 17, 2026 respectively.
| Parameter | Underlairs | MELT |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 5.0 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 230 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | John Jang | MINSUK SONG |
Customer experience
Underlairs
MELT
In-app purchases
Underlairs
- Monthly Premium$0.991 Month
- Yearly Premium3 Days trial$9.991 Year
- Premium Lifetime Access$17.99
MELT
No in-app purchases









