# Underlairs vs Apsis

The clearest difference is iOS requirement: Underlairs at 15.0 against Apsis's 18.6. On price, ads, in-app purchases 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 and Apsis sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Underlairs | Apsis |
| --- | --- | --- |
| 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 | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Freemium | — |
| Size | 230 MB | 32 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [John Jang](https://appshunter.io/developer/1857417631) | [Seungrae Cho](https://appshunter.io/developer/1620778100) |

## 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 |


### Apsis

[App page](https://appshunter.io/ios/app/apsis-focus-timer-and-to-do/id6777428026)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| deepspace monthly subscription | $2.99 | per month |
| deepspace annual subscription | $17.99 | per year |
| Apsis Lifetime Pass | $59.99 | one-time |


## Frequently asked questions

### Is Underlairs free?

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

### Is Apsis free?

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

### Do Underlairs or Apsis have ads?

Neither Underlairs nor Apsis shows ads.

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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.*