# 백고요 vs Focus Express

The clearest difference is iOS requirement: Focus Express at 13.0 against 백고요's 15.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 백고요 | Focus Express |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | — |
| Monetization | — | Ad-supported |
| Size | 60 MB | 33 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JAEMIN LEE](https://appshunter.io/developer/1787329213) | [JAEMIN LEE](https://appshunter.io/developer/1894477300) |

## What reviewers say

### 백고요

[App page](https://appshunter.io/ios/app/id6761764407)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Focus Express

[App page](https://appshunter.io/ios/app/focus-express-focus-timer/id6793920524)

This app transforms study or work sessions into a virtual subway journey. Track your focus time by traveling along real subway lines, earning a personalized ticket upon completion. It's designed for those seeking a more engaging and rewarding way to build focus habits.

**Highlights:** Real subway line focus timer, Customizable route selection, Immersive subway experience, Personalized focus tickets, Transit history tracking, Arrival notifications, Save and share tickets

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 백고요 free?

백고요 is free to download, with no in-app purchases.

### Is Focus Express free?

Focus Express is free to download, with no in-app purchases.

### Do 백고요 or Focus Express have ads?

Both 백고요 and Focus Express show 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.*