--- title: "Underlairs: Focus Study Timer - Reviews, Revenue and Downloads in United States | Apple App Store" 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 s" --- # Underlairs: Focus Study Timer — United States > Offline music for deep work ![Underlairs App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/1a/1c/ee/1a1cee0b-c18a-e99c-f61b-40d1c7c8efbe/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png) **Developer:** [John Jang](https://apptail.io/developer/john-jang-Ugqbhb) **Category:** Productivity **Rating:** 5.0/5 (7 ratings) **Price:** Free **Bundle ID:** com.johnjang.underlairs **Store:** Apple App Store **Country:** United States **Version:** 1.2.1 (released 2026-08-30) **Original Release:** 2025-12-06 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6755931983) **AppTail Page:** [https://apptail.io/app/underlairs-focus-study-timer-SsJx/united-states](https://apptail.io/app/underlairs-focus-study-timer-SsJx/united-states) ## Underlairs 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. ## Underlairs Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/78/e0/21/78e0212d-0e02-9f34-50dc-c6288c6f0f42/1.png/1284x2778.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/15/26/30/152630e0-2cef-62c3-b82c-6be835bc6d10/2.png/1284x2778.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/af/2a/05/af2a057a-771b-588b-ac62-6f7c88869c10/3.png/1284x2778.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/51/aa/73/51aa7316-4180-69fb-4ec9-9de1a88b760f/4.png/1284x2778.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d2/87/d2/d287d25d-0c25-97f8-2785-697149394e8a/5.png/1284x2778.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/2f/89/24/2f892458-14f4-b101-e5f6-8756499dfb74/6.png/1284x2778.png) ## Underlairs Rating Breakdown in United States - 5 stars: 7 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## Underlairs Reviews in United States ### ***** "Best workjam!" I love the moody focus music! It’s also beautifully designed I find myself keep opening it. -- amyjj1, 2025-12-19 [View all Underlairs reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Underlairs In-App Purchases | Item | Price | |------|-------| | Yearly Premium | $9.99 | | Monthly Premium | $0.99 | | Premium Lifetime Access | $17.99 | ## Underlairs Available In - [United States](https://apptail.io/app/underlairs-focus-study-timer-SsJx/united-states) - [South Korea](https://apptail.io/app/underlairs-focus-study-timer-SsJx/south-korea) - [Estonia](https://apptail.io/app/underlairs-focus-study-timer-SsJx/estonia) - [Egypt](https://apptail.io/app/underlairs-focus-study-timer-SsJx/egypt) - [Sri Lanka](https://apptail.io/app/underlairs-focus-study-timer-SsJx/sri-lanka) - [Lithuania](https://apptail.io/app/underlairs-focus-study-timer-SsJx/lithuania) - [North Macedonia](https://apptail.io/app/underlairs-focus-study-timer-SsJx/north-macedonia) - [Mali](https://apptail.io/app/underlairs-focus-study-timer-SsJx/mali) - [Saudi Arabia](https://apptail.io/app/underlairs-focus-study-timer-SsJx/saudi-arabia) - [United Arab Emirates](https://apptail.io/app/underlairs-focus-study-timer-SsJx/united-arab-emirates) - [Vietnam](https://apptail.io/app/underlairs-focus-study-timer-SsJx/vietnam) - [Colombia](https://apptail.io/app/underlairs-focus-study-timer-SsJx/colombia) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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