# Paradoxes vs RelativityTheory

The clearest difference is update cadence: RelativityTheory at every 3 weeks against Paradoxes's every 90 months. Paradoxes's advantage is iOS requirement (12.0 vs 14.4). On price, ads, in-app purchases and device support there is nothing between them.

Paradoxes costs $0.99 and RelativityTheory $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Paradoxes ships an update every 90 months, RelativityTheory every 3 weeks. The most recent releases landed on September 18, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Paradoxes | RelativityTheory |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/paradoxes/id1231246308/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 90 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 28 MB | 6 MB |
| Requires iOS | **12.0** | 14.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Polemics Applications LLC](https://appshunter.io/developer/482504032) | [Takao Akatsu](https://appshunter.io/developer/1530946331) |

## What reviewers say

### Paradoxes

[App page](https://appshunter.io/ios/app/paradoxes/id1231246308)

Explore a vast collection of over 220 logical oddities with detailed explanations. This app serves as a reference for philosophy students and anyone seeking engaging conversational topics, offering content in flashcard, dictionary, audio, and self-study formats.

**Highlights:** Over 220 paradoxes with explanations, Flashcard format, Dictionary format, Audio explanations, Self-study mode, Categorized paradoxes

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

**In-app purchases:** none


### RelativityTheory

[App page](https://appshunter.io/ios/app/relativitytheory/id1620999874)

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

**In-app purchases:** none


## Frequently asked questions

### Is Paradoxes free?

Paradoxes costs $0.99, with no in-app purchases.

### Is RelativityTheory free?

RelativityTheory costs $0.99, with no in-app purchases.

### Do Paradoxes or RelativityTheory have ads?

Neither Paradoxes nor RelativityTheory shows ads.

### Which is updated more often, Paradoxes or RelativityTheory?

Paradoxes ships an update every 90 months, and RelativityTheory every 3 weeks. Most recently, Paradoxes was updated on September 18, 2026 and RelativityTheory on September 13, 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.*