Comparison

TimeNest vs Underlairs

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

Head to head
About

TimeNest

This app combines world time with your existing calendar events. View multiple cities' schedules and weather side-by-side, with a home screen widget for instant access to your day. Plan, track habits, and use a Pomodoro timer for focused work.

Highlights
  • Side-by-side city time displays
  • Google Calendar sync
  • Home screen widget
  • Habit and to-do tracking
  • Pomodoro focus timer
  • Daily progress stickers
Features
Read full description

We start with how much of today is left, counted from the hours you're awake. Instead of listing tasks, you carve the day into blocks. And the calendar you fill with photos and handwriting can go on your fridge. ■ See the day by what's left · Not what time it is, but how much is left · Counted all the way to when you go to sleep · The time until your next plan, at a glance ■ Carve out time, not task lists Even the pauses between plans get a block of their own. You can see how the day actually runs. ■ A calendar that turns into a record · One photo, one line in your own hand, one sticker · Multi-day plans stay in one piece · The days you've lived, stacking up ■ Take it off the screen Print it on a single A4 and the stickers and handwriting come with it. Put it on the fridge and the whole family sees it. Or keep it as a PDF. ■ Today, before you open the app Unlock your phone and the blocks you carved and the time you have left are already there. Whatever's running now stays at the top of the screen. ■ A few more things · Syncs with Google Calendar. Nothing to migrate, nothing to give up · City clocks in the corner, showing who's awake right now · Monthly, weekly, and daily views, habit tracking, a Pomodoro timer For anyone who builds a day like a timetable, and wants to keep it afterward.

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

TimeNest4 screens
Underlairs4 screens

Verdict

The call

The clearest difference is in-app purchases: TimeNest at none against Underlairs's 3. TimeNest also leads on update cadence (every 4 days vs every 3 weeks). On price, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Underlairs sells 3 in-app purchases, starting at $0.99 per month. TimeNest asks for nothing beyond the download.

UpkeepUpdate frequency

TimeNest ships an update every 4 days, Underlairs every 3 weeks. Both last shipped on October 30, 2026.

Scorecard3 real differences · 7 level
TimeNest versus Underlairs: the parameters behind the verdict, then further details
ParameterTimeNestUnderlairs
PriceFreeFree
Rating—5.0 (8 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—8 — better
Update frequencyEvery 4 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015.0
Further details — not scored
Size127 MB230 MB
Age rating4+4+
DeveloperHYUNJUNG SEOJohn Jang

Customer experience

TimeNest

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Underlairs

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

TimeNest

No in-app purchases

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 TimeNest free?
TimeNest is free to download, with no in-app purchases.
Is Underlairs free?
Underlairs is free to download, with in-app purchases available.
Do TimeNest or Underlairs have ads?
Neither TimeNest nor Underlairs shows ads.
Which is updated more often, TimeNest or Underlairs?
TimeNest ships an update every 4 days, and Underlairs every 3 weeks. Most recently, TimeNest was updated on October 30, 2026 and Underlairs on October 30, 2026.

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