# 英会話パターン帳 vs Probability Paradox Lab

The clearest difference is in-app purchases: 英会話パターン帳 at none against Probability Paradox Lab's 1. 英会話パターン帳 also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Probability Paradox Lab sells 1 one-off in-app purchase. 英会話パターン帳 asks for nothing beyond the download.

英会話パターン帳 ships an update every 10 days, Probability Paradox Lab every 3 weeks. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 英会話パターン帳 | Probability Paradox Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Size | 8 MB | 18 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SANWA Inc.](https://appshunter.io/developer/1878028373) | [Non Kudo](https://appshunter.io/developer/1890455917) |

## What reviewers say

### 英会話パターン帳

[App page](https://appshunter.io/ios/app/id6760806149)

**Features:** macOS Compatibility

**In-app purchases:** none


### Probability Paradox Lab

[App page](https://appshunter.io/ios/app/probability-paradox-lab/id6782385785)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock Pack | $0.99 | one-time |


## Frequently asked questions

### Is 英会話パターン帳 free?

英会話パターン帳 is free to download, with no in-app purchases.

### Is Probability Paradox Lab free?

Probability Paradox Lab is free to download, with in-app purchases available.

### Do 英会話パターン帳 or Probability Paradox Lab have ads?

Probability Paradox Lab shows ads; 英会話パターン帳 does not.

### Which is updated more often, 英会話パターン帳 or Probability Paradox Lab?

英会話パターン帳 ships an update every 10 days, and Probability Paradox Lab every 3 weeks. Most recently, 英会話パターン帳 was updated on October 25, 2026 and Probability Paradox Lab on October 28, 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.*