# Contradict vs Causal Loop Diagram

The clearest difference is update cadence: Causal Loop Diagram at every 3 weeks against Contradict's every 6 months. Contradict's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Contradict ships an update every 6 months, Causal Loop Diagram every 3 weeks. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Contradict | Causal Loop Diagram |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Size | 3 MB | 4 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Robin Hedinger](https://appshunter.io/developer/1454535247) | [seiji honda](https://appshunter.io/developer/1896430544) |

## What reviewers say

### Contradict

[App page](https://appshunter.io/ios/app/contradict/id6450902162)

**Features:** macOS Compatibility

**In-app purchases:** none


### Causal Loop Diagram

[App page](https://appshunter.io/ios/app/causal-loop-diagram/id6769942289)

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

**In-app purchases:** none


## Frequently asked questions

### Is Contradict free?

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

### Is Causal Loop Diagram free?

Causal Loop Diagram is free to download, with no in-app purchases.

### Do Contradict or Causal Loop Diagram have ads?

Neither Contradict nor Causal Loop Diagram shows ads.

### Which is updated more often, Contradict or Causal Loop Diagram?

Contradict ships an update every 6 months, and Causal Loop Diagram every 3 weeks. Most recently, Contradict was updated on October 6, 2026 and Causal Loop Diagram on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*