# Epoch History Timeline vs OpeningBook

The clearest difference is in-app purchases: Epoch History Timeline at none against OpeningBook's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OpeningBook sells 1 one-off in-app purchase. Epoch History Timeline asks for nothing beyond the download.

## The numbers

| Metric | Epoch History Timeline | OpeningBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/epoch-history-timeline/id6760444797/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Monetization | Free | — |
| Size | 202 MB | 4 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [万朋 于](https://appshunter.io/developer/1755757404) | [Zhenghong Peng](https://appshunter.io/developer/6797348186) |

## What reviewers say

### Epoch History Timeline

[App page](https://appshunter.io/ios/app/epoch-history-timeline/id6760444797)

Explore world history through immersive, cinematic timelines. Compare civilizations side-by-side and access rich event details with images and Wikipedia links. Features guided tours and curated historical themes for an engaging learning experience.

**Highlights:** Cinematic timelines, Space-Time Pillar for civilization comparison, Auto Tour guided journeys, Rich event details with images, One-tap Wikipedia access, Curated historical themes

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

**In-app purchases:** none


### OpeningBook

[App page](https://appshunter.io/ios/app/openingbook/id6805625863)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Training Mode | $3.99 | one-time |


## Frequently asked questions

### Is Epoch History Timeline free?

Epoch History Timeline is free to download, with no in-app purchases.

### Is OpeningBook free?

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

### Do Epoch History Timeline or OpeningBook have ads?

Neither Epoch History Timeline nor OpeningBook 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.*