# Underlairs vs BrewFocus

The clearest difference is update cadence: BrewFocus at weekly against Underlairs's every 3 weeks. Underlairs's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Underlairs sells 3 in-app purchases, starting at $0.99 per month and BrewFocus sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Underlairs ships an update every 3 weeks, BrewFocus weekly. The most recent releases landed on September 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Underlairs | BrewFocus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/underlairs-focus-study-timer/id6755931983/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Freemium | Freemium |
| Size | 230 MB | 284 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [John Jang](https://appshunter.io/developer/1857417631) | [HYUNG SOON CHOI](https://appshunter.io/developer/1833172160) |

## What reviewers say

### 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 |


### BrewFocus

[App page](https://appshunter.io/ios/app/brewfocus-focus-in-a-cafe/id6782930933)

Recreate the productive atmosphere of a cafe anywhere, anytime. Choose your virtual coffee and watch it empty as you focus, with ambient sounds and changing views to enhance concentration.

**Highlights:** Virtual cafe ambience, Customizable focus sessions, Visual progress tracking, Ambient soundscapes, Dynamic visual scenes, Session history and stats

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $19.99 | per year |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Underlairs free?

Underlairs is free to download, with in-app purchases available.

### Is BrewFocus free?

BrewFocus is free to download, with in-app purchases available.

### Do Underlairs or BrewFocus have ads?

Neither Underlairs nor BrewFocus shows ads.

### Which is updated more often, Underlairs or BrewFocus?

Underlairs ships an update every 3 weeks, and BrewFocus weekly. Most recently, Underlairs was updated on September 7, 2026 and BrewFocus on September 22, 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.*