# Logical Argumentation vs Biasphera

The clearest difference is in-app purchases: Biasphera at none against Logical Argumentation's 2. Biasphera also leads on ads (none vs shown). Logical Argumentation's advantage is update cadence (every 3 weeks vs every 2 months) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Logical Argumentation sells 2 in-app purchases, starting at $2.99 per month. Biasphera asks for nothing beyond the download.

Logical Argumentation ships an update every 3 weeks, Biasphera every 2 months. The most recent releases landed on September 15, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Logical Argumentation | Biasphera |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/logical-argumentation/id6738572175/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 99 MB | 5 MB |
| Requires iOS | **15.6** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [ARAS MARC-CHRISTOPHE ZIRGULIS](https://appshunter.io/developer/1781191928) | [Oliver Lapsley](https://appshunter.io/developer/1806948719) |

## What reviewers say

### Logical Argumentation

[App page](https://appshunter.io/ios/app/logical-argumentation/id6738572175)

Master deductive, inductive, and abductive reasoning with interactive lessons and an AI-powered tutor. Practice argument construction, identify fallacies, and track your progress in this comprehensive logic learning tool.

**Highlights:** Deductive, Inductive, Abductive Reasoning, Logical Fallacies Recognition, Argument Construction & Evaluation, AI-Powered Personal Tutor, Interactive Argument Workshop, Progress Tracking & Analytics, Offline Content Access

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Logic Pro Monthly | $2.99 | per month |
| Logic Pro Yearly | $9.99 | per year |


### Biasphera

[App page](https://appshunter.io/ios/app/biasphera/id6744299539)

**In-app purchases:** none


## Frequently asked questions

### Is Logical Argumentation free?

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

### Is Biasphera free?

Biasphera is free to download, with no in-app purchases.

### Do Logical Argumentation or Biasphera have ads?

Logical Argumentation shows ads; Biasphera does not.

### Which is updated more often, Logical Argumentation or Biasphera?

Logical Argumentation ships an update every 3 weeks, and Biasphera every 2 months. Most recently, Logical Argumentation was updated on September 15, 2026 and Biasphera on September 8, 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.*