# TimeNest vs Underlairs

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.

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

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

## The numbers

| Metric | TimeNest | Underlairs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/underlairs-focus-study-timer/id6755931983/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | **Free** | Freemium |
| Size | 127 MB | 230 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HYUNJUNG SEO](https://appshunter.io/developer/1843650315) | [John Jang](https://appshunter.io/developer/1857417631) |

## What reviewers say

### TimeNest

[App page](https://appshunter.io/ios/app/timenest-calendar-planner/id6753350773)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Underlairs

[App page](https://appshunter.io/ios/app/underlairs-focus-study-timer/id6755931983)

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:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $0.99 | per month |
| Yearly Premium | $9.99 | per year |
| Premium Lifetime Access | $17.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*