# NBTC e vs 世界历史

The clearest difference is in-app purchases: NBTC e at none against 世界历史's 1. NBTC e also leads on update cadence (every 4 months vs every 11 months). 世界历史's advantage is iOS requirement (6.0 vs 12.1). On price, ads and device support there is nothing between them.

Both are free to download. 世界历史 sells 1 one-off in-app purchase. NBTC e asks for nothing beyond the download.

NBTC e ships an update every 4 months, 世界历史 every 11 months. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | NBTC e | 世界历史 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/id1100747980/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 11 months |
| Size | 21 MB | 95 MB |
| Requires iOS | 12.1 | **6.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 17+ |
| Developer | [Office of The National Broadcasting and Telecommunications Commission](https://appshunter.io/developer/721507053) | [芬霞 方](https://appshunter.io/developer/1083875516) |

## What reviewers say

### NBTC e

[App page](https://appshunter.io/ios/app/nbtc-e-library/id955374020)

**Features:** macOS Compatibility

**In-app purchases:** none


### 世界历史

[App page](https://appshunter.io/ios/app/id1100747980)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 去除广告 | $2.99 | one-time |


## Frequently asked questions

### Is NBTC e free?

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

### Is 世界历史 free?

世界历史 is free to download, with in-app purchases available.

### Do NBTC e or 世界历史 have ads?

Neither NBTC e nor 世界历史 shows ads.

### Which is updated more often, NBTC e or 世界历史?

NBTC e ships an update every 4 months, and 世界历史 every 11 months. Most recently, NBTC e was updated on October 18, 2026 and 世界历史 on October 16, 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.*