# Liminal vs SOPHI0

The clearest difference is update cadence: SOPHI0 at every 4 days against Liminal's every 11 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Liminal sells 1 one-off in-app purchase and SOPHI0 sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Liminal ships an update every 11 days, SOPHI0 every 4 days. The most recent releases landed on October 28, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Liminal | SOPHI0 |
| --- | --- | --- |
| 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 11 days | **Every 4 days** |
| Monetization | Free | — |
| Size | 5 MB | 4 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 12+ |
| Developer | [OMAR DANIEL GRAZIANO](https://appshunter.io/developer/1896485759) | [Daniel Frank](https://appshunter.io/developer/6785720557) |

## 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 |


### SOPHI0

[App page](https://appshunter.io/ios/app/sophi0-philosophy-zero/id6785720555)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 8 Tokens | $0.99 | one-time |
| Unlimited Writing | $2.99 | one-time |


## Frequently asked questions

### Is Liminal free?

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

### Is SOPHI0 free?

SOPHI0 is free to download, with in-app purchases available.

### Do Liminal or SOPHI0 have ads?

Neither Liminal nor SOPHI0 shows ads.

### Which is updated more often, Liminal or SOPHI0?

Liminal ships an update every 11 days, and SOPHI0 every 4 days. Most recently, Liminal was updated on October 28, 2026 and SOPHI0 on October 12, 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.*