# Cálculos Básicos AI vs Structural Formulas Study

The clearest difference is update cadence: Structural Formulas Study at every 5 weeks against Cálculos Básicos AI's every 6 months. Cálculos Básicos AI's advantage is iOS requirement (7.1 vs 18.4). 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.

Cálculos Básicos AI ships an update every 6 months, Structural Formulas Study every 5 weeks. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Cálculos Básicos AI | Structural Formulas Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Size | 2 MB | 5 MB |
| Requires iOS | **7.1** | 18.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mariano Pazos Afonso](https://appshunter.io/developer/788547472) | [Jun Yamabe](https://appshunter.io/developer/1732682049) |

## What reviewers say

### Cálculos Básicos AI

[App page](https://appshunter.io/ios/app/calculos-basicos-ai/id788547469)

**Features:** macOS Compatibility

**In-app purchases:** none


### Structural Formulas Study

[App page](https://appshunter.io/ios/app/structural-formulas-study/id6752260162)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cálculos Básicos AI free?

Cálculos Básicos AI is free to download, with no in-app purchases.

### Is Structural Formulas Study free?

Structural Formulas Study is free to download, with no in-app purchases.

### Do Cálculos Básicos AI or Structural Formulas Study have ads?

Neither Cálculos Básicos AI nor Structural Formulas Study shows ads.

### Which is updated more often, Cálculos Básicos AI or Structural Formulas Study?

Cálculos Básicos AI ships an update every 6 months, and Structural Formulas Study every 5 weeks. Most recently, Cálculos Básicos AI was updated on September 8, 2026 and Structural Formulas Study on September 20, 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.*