# Sika Biblioteca vs Structuralia

The clearest difference is in-app purchases: Sika Biblioteca at none against Structuralia's 2. Sika Biblioteca also leads on update cadence (fortnightly vs every 5 weeks). Structuralia's advantage is iOS requirement (14.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Structuralia sells 2 in-app purchases, starting at $24.99 per month. Sika Biblioteca asks for nothing beyond the download.

Sika Biblioteca ships an update fortnightly, Structuralia every 5 weeks. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Sika Biblioteca | Structuralia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (5 ratings)](https://appshunter.io/ios/app/structuralia/id6739357111/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 71 MB | 67 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Odilo](https://appshunter.io/developer/976580041) | [Educa EdTech](https://appshunter.io/developer/1682926385) |

## What reviewers say

### Sika Biblioteca

[App page](https://appshunter.io/ios/app/sika-biblioteca/id1630102249)

**In-app purchases:** none


### Structuralia

[App page](https://appshunter.io/ios/app/structuralia/id6739357111)

Advance your career with specialized online courses and master's degrees in engineering, construction, energy, and digital transformation. Learn from industry leaders with flexible, up-to-date content designed to enhance your skills and competitiveness in the job market.

**Highlights:** Specialized courses in engineering and construction, Master's degrees from industry experts, Flexible learning methodologies, Up-to-date digital transformation content, Career advancement focus, Access to BIM, AI, and Big Data training

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Structuralia - Cursos Online | $24.99 | per month |
| Structuralia - Cursos Online | $199.99 | per year |


## Frequently asked questions

### Is Sika Biblioteca free?

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

### Is Structuralia free?

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

### Do Sika Biblioteca or Structuralia have ads?

Neither Sika Biblioteca nor Structuralia shows ads.

### Which is updated more often, Sika Biblioteca or Structuralia?

Sika Biblioteca ships an update fortnightly, and Structuralia every 5 weeks. Most recently, Sika Biblioteca was updated on October 16, 2026 and Structuralia on October 17, 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.*