Underlairs vs TTT
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
Read full descriptionHide 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.
TTT
Read full descriptionHide full description
Why would you use a time tracker that's not the most complete among all these similar apps? Exactly for that reason! It does only that: "time tracking" and it does it well. No fluff, no ad, no subscription, no nonsense. You'll learn how to use it in 5 seconds. Everything is as simple as possible. Add a category of whatever you want to track, add time when you want, get a clear view of where your time goes. And that's it. Get back to your life now! Also the app looks cool and retro because what's important at the end of the day is for it to be readable at a glance. Made by a tiny indie app studio: Framedata. We aim to bring value to you while being gentle with your wallet and your time. Feel free to contact us to let us know what you think about TTT: The Time Tracker, we answer to everyone.
Screenshots
Verdict
The clearest difference is in-app purchases: TTT at none against Underlairs's 3. TTT also leads on update cadence (every 6 days vs every 3 weeks). Underlairs's advantage is iOS requirement (15.0 vs 18.0). On price, ads and device support 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. TTT asks for nothing beyond the download.
Underlairs ships an update every 3 weeks, TTT every 6 days. Both last shipped on October 9, 2026.
| Parameter | Underlairs | TTT |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 230 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | John Jang | Framedata |
In-app purchases
Underlairs
- Monthly Premium$0.991 Month
- Yearly Premium3 Days trial$9.991 Year
- Premium Lifetime Access$17.99
TTT
No in-app purchases









