# Eureka 1 vs Nuestra biblioteca

The clearest difference is update cadence: Nuestra biblioteca at every 4 months against Eureka 1's every 10 months. Eureka 1's advantage is iOS requirement (9.3 vs 13.0). 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.

Eureka 1 ships an update every 10 months, Nuestra biblioteca every 4 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Eureka 1 | Nuestra biblioteca |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 months** |
| Size | 86 MB | 286 MB |
| Requires iOS | **9.3** | 13.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Everyware Apps](https://appshunter.io/developer/718530491) | [Polygon Education S.L](https://appshunter.io/developer/1182312666) |

## What reviewers say

### Eureka 1

[App page](https://appshunter.io/ios/app/eureka-1/id1041929396)

**Features:** macOS Compatibility

**In-app purchases:** none


### Nuestra biblioteca

[App page](https://appshunter.io/ios/app/nuestra-biblioteca/id1276460217)

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

**In-app purchases:** none


## Frequently asked questions

### Is Eureka 1 free?

Eureka 1 is free to download, with no in-app purchases.

### Is Nuestra biblioteca free?

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

### Do Eureka 1 or Nuestra biblioteca have ads?

Neither Eureka 1 nor Nuestra biblioteca shows ads.

### Which is updated more often, Eureka 1 or Nuestra biblioteca?

Eureka 1 ships an update every 10 months, and Nuestra biblioteca every 4 months. Most recently, Eureka 1 was updated on November 2, 2026 and Nuestra biblioteca on November 6, 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.*