Underlairs vs 4get.
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.
4get.
Transform your smartphone into a 2003-style green LCD phone for a set duration. Focus on the countdown and signal, and grow a forget-me-not flower in your field for each successful session. Lock distracting apps during your focus time.
- 2003-style LCD phone interface
- Focus timer with countdown
- Grow virtual forget-me-nots
- App locking for distractions
- Minimalist design
- Offline functionality
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FORGET THE FEED. PLANT THE SEED. 4get. turns your smartphone into a 2003 green-LCD phone for a set amount of time. No feed, no scroll, no red badges. Just a countdown, a signal needle, and the quiet hum of an era before the attention economy. HOW IT WORKS — TUNE a session (15–120 minutes) and put the phone down. — The screen becomes a 2003 dashboard: a seven-segment countdown, a trembling signal needle, static noise on a green LCD. — Pick up the phone or wander off, and the SIGNAL drifts toward LOST. Hold the line, and something grows. — When the timer ends, a forget-me-not is planted in your FIELD — one flower per day you came back to the real world. FIELD Your field is a calendar of days you stayed away. No streaks, no scores, no badges — just flowers on the days you looked up. Miss a day and nothing punishes you; the soil simply waits. LOCK Seal the apps that pull you back. During a session, 4get. uses Apple's Screen Time technology to shield the apps you choose. They come back when the timer ends — not before. ALSO IN THE BOX — NOISE: lo-fi static loops to leave on while you're gone. — MEMO: one small notepad, 2003-style. — CAMERA: take a before/after memory — one photo, dithered like an old cameraphone. — CALL: your favorite people, one tap away, even mid-session. Real calls were never the problem. WHAT 4get. IS NOT No account. No server. No analytics. No feed to check. Your data stays on your device and in your own iCloud. The app is designed to be left alone — the less you touch it, the better it works. LOOK UP. THE WORLD IS STILL THERE.
Screenshots
Verdict
The clearest difference is in-app purchases: 4get. at none against Underlairs's 3. Underlairs's advantage is device support (3 vs 1). On price, review sentiment, update cadence and ads 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
Both are free to download. Underlairs sells 3 in-app purchases, starting at $0.99 per month. 4get. asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 7, 2026 and September 21, 2026 respectively.
| Parameter | Underlairs | 4get. |
|---|---|---|
| Price | Free | Free |
| 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 | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 230 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | John Jang | 연우 정 |
Customer experience
Underlairs
4get.
In-app purchases
Underlairs
- Monthly Premium$0.991 Month
- Yearly Premium3 Days trial$9.991 Year
- Premium Lifetime Access$17.99
4get.
No in-app purchases









