# NodeSpark vs Causal Loop Diagram

The clearest difference is in-app purchases: Causal Loop Diagram at none against NodeSpark's 2. Causal Loop Diagram also leads on iOS requirement (16.0 vs 26.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. NodeSpark sells 2 in-app purchases, starting at $9.99 per month. Causal Loop Diagram asks for nothing beyond the download.

NodeSpark ships an update fortnightly, Causal Loop Diagram every 3 weeks. The most recent releases landed on June 30, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | NodeSpark | Causal Loop Diagram |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nodespark/id6756223114/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 134 MB | 4 MB |
| Requires iOS | 26.1 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Elliott](https://appshunter.io/developer/1815549651) | [seiji honda](https://appshunter.io/developer/1896430544) |

## What reviewers say

### NodeSpark

[App page](https://appshunter.io/ios/app/nodespark/id6756223114)

Build and run custom automations directly on your iPhone or iPad. Create complex workflows visually, leverage AI assistance for guidance, and connect to a hub for continuous operation. Ideal for users seeking to streamline tasks without coding.

**Highlights:** Visual workflow builder, AI workflow assistant (Synra), Template-based automation creation, Mobile-first design, NodeSparkHub integration, Safe automation design

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NodeSpark Unlimited | $9.99 | per month |
| NodeSpark Unlimited | $79.99 | per year |


### 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 NodeSpark free?

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

### Is Causal Loop Diagram free?

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

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

Neither NodeSpark nor Causal Loop Diagram shows ads.

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

NodeSpark ships an update fortnightly, and Causal Loop Diagram every 3 weeks. Most recently, NodeSpark was updated on June 30, 2026 and Causal Loop Diagram on September 23, 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.*