# Liminal vs The Philosopher’s Library

The clearest difference is iOS requirement: Liminal at 17.0 against The Philosopher’s Library's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Liminal sells 1 one-off in-app purchase and The Philosopher’s Library sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Liminal ships an update every 2 weeks, The Philosopher’s Library weekly. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Liminal | The Philosopher’s Library |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/liminal-learn-philosophy/id6770075835/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 3 MB | 64 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 12+ |
| Developer | [OMAR DANIEL GRAZIANO](https://appshunter.io/developer/1896485759) | [Vasilis Batsios](https://appshunter.io/developer/1799894144) |

## What reviewers say

### Liminal

[App page](https://appshunter.io/ios/app/liminal-learn-philosophy/id6770075835)

Explore Western philosophy with a comprehensive, self-paced curriculum. Access lessons, philosopher profiles, key terms, and quizzes offline. Learn at your own pace with audio narration and interactive features.

**Highlights:** Comprehensive 4-year philosophy curriculum, 104 lessons and 48 philosopher profiles, Searchable glossary of 82 key terms, Interactive quizzes with explanations, Spaced-repetition flashcards, On-device audio narration, Offline access, no network required

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Liminal Full Access | $9.99 | one-time |


### The Philosopher’s Library

[App page](https://appshunter.io/ios/app/the-philosophers-library/id6791702273)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $12.99 | one-time |


## Frequently asked questions

### Is Liminal free?

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

### Is The Philosopher’s Library free?

The Philosopher’s Library is free to download, with in-app purchases available.

### Do Liminal or The Philosopher’s Library have ads?

Neither Liminal nor The Philosopher’s Library shows ads.

### Which is updated more often, Liminal or The Philosopher’s Library?

Liminal ships an update every 2 weeks, and The Philosopher’s Library weekly. Most recently, Liminal was updated on October 19, 2026 and The Philosopher’s Library on October 15, 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.*