# 상식 한 줄 vs BnB

The clearest difference is in-app purchases: BnB at none against 상식 한 줄's 2. BnB also leads on update cadence (every 6 days vs every 2 weeks) and iOS requirement (13.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. 상식 한 줄 sells 2 in-app purchases, starting at $1.99 per month. BnB asks for nothing beyond the download.

상식 한 줄 ships an update every 2 weeks, BnB every 6 days. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 상식 한 줄 | BnB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6451434808/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | Freemium | — |
| Size | 57 MB | 27 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Sunghee Lee](https://appshunter.io/developer/1477689060) | [CARROT GLOBAL Inc.](https://appshunter.io/developer/994380313) |

## What reviewers say

### 상식 한 줄

[App page](https://appshunter.io/ios/app/id6451434808)

Access a daily line of general knowledge on your home screen without dedicated study time. Explore over 3,000 facts across 60 topics, test your knowledge with quizzes, and track your learning progress through levels and streaks. Save and search for facts to build a consistent learning habit.

**Highlights:** Daily knowledge facts via widgets, Over 3,000 facts across 60 topics, 4-choice quizzes for review, Leveling and streak tracking, Save and search for facts, Home and lock screen widgets

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1개월 Premium | $1.99 | per month |
| 1년 Premium | $14.99 | per year |


### BnB

[App page](https://appshunter.io/ios/app/bnb/id6473818657)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 상식 한 줄 free?

상식 한 줄 is free to download, with in-app purchases available.

### Is BnB free?

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

### Do 상식 한 줄 or BnB have ads?

Neither 상식 한 줄 nor BnB shows ads.

### Which is updated more often, 상식 한 줄 or BnB?

상식 한 줄 ships an update every 2 weeks, and BnB every 6 days. Most recently, 상식 한 줄 was updated on October 30, 2026 and BnB on October 27, 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.*