# Pepper Day vs Underlairs

The clearest difference is ads: Underlairs at none against Pepper Day's shown. Pepper Day's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Pepper Day sells 4 one-off in-app purchases 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.

Pepper Day ships an update monthly, Underlairs every 3 weeks. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Pepper Day | 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 |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 52 MB | 230 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [松琴 臧](https://appshunter.io/developer/6822652444) | [John Jang](https://appshunter.io/developer/1857417631) |

## What reviewers say

### Pepper Day

[App page](https://appshunter.io/ios/app/pepper-day/id1483174732)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 懒猪金币+20 | $0.99 | one-time |
| 懒猪金币+400 | $2.99 | one-time |
| Century VIP Access (Ad-Free) | $6.99 | one-time |
| Cicada All-Access Ultimate VIP | $14.99 | one-time |


### 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 Pepper Day free?

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

### Is Underlairs free?

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

### Do Pepper Day or Underlairs have ads?

Pepper Day shows ads; Underlairs does not.

### Which is updated more often, Pepper Day or Underlairs?

Pepper Day ships an update monthly, and Underlairs every 3 weeks. Most recently, Pepper Day was updated on November 7, 2026 and Underlairs on November 5, 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.*