# Eureka 2 vs Ecosystems are Interconnected

The clearest difference is update cadence: Eureka 2 at every 6 months against Ecosystems are Interconnected's every 63 months. Eureka 2 also leads on iOS requirement (9.3 vs 11.0). Ecosystems are Interconnected's advantage is device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.

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

Eureka 2 ships an update every 6 months, Ecosystems are Interconnected every 63 months. The most recent releases landed on September 14, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Eureka 2 | Ecosystems are Interconnected |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 63 months |
| Size | 43 MB | 86 MB |
| Requires iOS | **9.3** | 11.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Everyware Apps](https://appshunter.io/developer/718530491) | [Science Education Institute](https://appshunter.io/developer/1439710468) |

## What reviewers say

### Eureka 2

[App page](https://appshunter.io/ios/app/eureka-2/id1174327832)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ecosystems are Interconnected

[App page](https://appshunter.io/ios/app/ecosystems-are-interconnected/id1439729976)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Eureka 2 free?

Eureka 2 is free to download, with no in-app purchases.

### Is Ecosystems are Interconnected free?

Ecosystems are Interconnected is free to download, with no in-app purchases.

### Do Eureka 2 or Ecosystems are Interconnected have ads?

Neither Eureka 2 nor Ecosystems are Interconnected shows ads.

### Which is updated more often, Eureka 2 or Ecosystems are Interconnected?

Eureka 2 ships an update every 6 months, and Ecosystems are Interconnected every 63 months. Most recently, Eureka 2 was updated on September 14, 2026 and Ecosystems are Interconnected on September 22, 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.*