# FocusOven vs Underlairs

The clearest difference is ads: Underlairs at none against FocusOven's shown. FocusOven's advantage is update cadence (every 3 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. FocusOven sells 2 in-app purchases, starting at $2.99 per month 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.

FocusOven ships an update every 3 days, Underlairs every 3 weeks. The most recent releases landed on October 1, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | FocusOven | Underlairs |
| --- | --- | --- |
| 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 |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Monetization | — | Freemium |
| Size | 49 MB | 230 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jeongbin Park](https://appshunter.io/developer/1819440689) | [John Jang](https://appshunter.io/developer/1857417631) |

## What reviewers say

### FocusOven

[App page](https://appshunter.io/ios/app/focusoven/id6755106950)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FocusOven Pro (1-Month Plan) | $2.99 | per month |
| FocusOven Pro (1-Year Plan) | $19.99 | per year |


### 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 FocusOven free?

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

### Is Underlairs free?

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

### Do FocusOven or Underlairs have ads?

FocusOven shows ads; Underlairs does not.

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

FocusOven ships an update every 3 days, and Underlairs every 3 weeks. Most recently, FocusOven was updated on October 1, 2026 and Underlairs on September 23, 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.*