Comparison

FocusIsle vs Underlairs

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

Head to head
About

FocusIsle

Features
Read full description

FocusIsle is an immersive focus app designed for deep work, studying, reading, and relaxation. Choose a calming illustrated scene, listen to rain, birds, streams, fireplaces, cafés, piano, and other ambient sounds, then settle into uninterrupted focus. KEY FEATURES IMMERSIVE FOCUS SCENES Explore peaceful illustrated environments including sunny nature, rainy cities, forests, libraries, beaches, fireplaces, and van life. CALMING AMBIENT SOUNDS Each scene includes carefully matched sound options. Your selection is saved automatically for your next session. FOCUS TIMER Choose a task, set your session duration, and begin focusing without unnecessary distractions. TIMELINE Review your daily focus sessions and see exactly how your time was spent. WEEKLY STATISTICS Understand your focus habits through weekly charts, task ratios, total focus time, and goal completion. DAILY FOCUS GOALS Set a daily target and follow your progress throughout the day. LIVE ACTIVITIES View your current focus time and goal progress from the Lock Screen and Dynamic Island. HOME SCREEN WIDGETS Keep today’s and this week’s focus statistics visible at a glance. FocusIsle keeps productivity simple. It gives you a quiet, beautiful space where focused work feels natural and sustainable. Selected premium scenes can be unlocked forever with a single lifetime purchase.

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.

Screenshots

FocusIsle4 screens
Underlairs4 screens

Verdict

The call

The clearest difference is update cadence: FocusIsle at every 5 days against Underlairs's every 3 weeks. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FocusIsle sells 1 one-off in-app purchase and Underlairs sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FocusIsle ships an update every 5 days, Underlairs every 3 weeks. The most recent releases landed on September 11, 2026 and September 7, 2026 respectively.

Scorecard1 real difference · 9 level
FocusIsle versus Underlairs: the parameters behind the verdict, then further details
ParameterFocusIsleUnderlairs
PriceFreeFree
Rating—5.0 (7 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—7 — better
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.215.0 — better
Further details — not scored
Size97 MB230 MB
Age rating4+4+
DeveloperFindFire, Inc.John Jang

In-app purchases

1 purchases

FocusIsle

One-time1
  • Lifetime Access$3.99
3 purchases

Underlairs

Subscriptions2
  • Monthly Premium$0.991 Month
  • Yearly Premium3 Days trial$9.991 Year
One-time1
  • Premium Lifetime Access$17.99

Questions

Is FocusIsle free?
FocusIsle is free to download, with in-app purchases available.
Is Underlairs free?
Underlairs is free to download, with in-app purchases available.
Do FocusIsle or Underlairs have ads?
Neither FocusIsle nor Underlairs shows ads.
Which is updated more often, FocusIsle or Underlairs?
FocusIsle ships an update every 5 days, and Underlairs every 3 weeks. Most recently, FocusIsle was updated on September 11, 2026 and Underlairs on September 7, 2026.

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