# Biography 2 vs IR Theory Explorer

The clearest difference is price: Biography 2 at Free against IR Theory Explorer's $1.99. Biography 2 also leads on device support (4 vs 2) and iOS requirement (17.5 vs 26.4). IR Theory Explorer's advantage is in-app purchases (none vs 2). On rating, ratings volume and ads there is nothing between them.

Biography 2 is free to download; IR Theory Explorer costs $1.99 up front. Biography 2 sells 2 in-app purchases, starting at $1.99 per month. IR Theory Explorer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Biography 2 against 5.0 for IR Theory Explorer. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

## The numbers

| Metric | Biography 2 | IR Theory Explorer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/biography-2/id6689492775/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/ir-theory-explorer/id6763011305/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | **Freemium** | Paid |
| Size | 3 MB | 0 MB |
| Requires iOS | **17.5** | 26.4 |
| Devices | **iPhone, iPad, Apple TV, Vision Pro** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [MAMN84](https://appshunter.io/developer/351982783) | [Jennifer Cannon](https://appshunter.io/developer/1895119860) |

## What reviewers say

### Biography 2

[App page](https://appshunter.io/ios/app/biography-2/id6689492775)

Discover influential figures daily through engaging stories, animations, and timelines. Learn about history's greatest minds in multiple languages, with options to read or listen. Perfect for history enthusiasts and curious learners seeking daily inspiration.

**Highlights:** Daily new biography, Explore influential figures, Animated backgrounds, Immersive timelines, Quotes from legends, Audio and text in 11 languages, Cross-device compatibility

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Biography - Monthly Access | $1.99 | per month |
| Biography - Yearly Access | $14.99 | per year |


### IR Theory Explorer

[App page](https://appshunter.io/ios/app/ir-theory-explorer/id6763011305)

Explore and understand International Relations theories. This app helps you learn about key authors, compare different theories, and see how they apply to historical and current events.

**Highlights:** Learn International Relations theories, Understand key authors, Compare and contrast theories, Apply theories to events, Educational content

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

**In-app purchases:** none


## Frequently asked questions

### Is Biography 2 free?

Biography 2 is free to download, with in-app purchases available.

### Is IR Theory Explorer free?

IR Theory Explorer costs $1.99, with no in-app purchases.

### Which has better reviews, Biography 2 or IR Theory Explorer?

Biography 2 and IR Theory Explorer are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Biography 2 or IR Theory Explorer have ads?

Neither Biography 2 nor IR Theory Explorer 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.*