# ConstruCalc vs SIGA App

The clearest difference is review sentiment: ConstruCalc at 77% against SIGA App's 67%. On price, update cadence, 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.

ConstruCalc ships an update every 5 weeks, SIGA App every 2 months. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ConstruCalc | SIGA App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (7 ratings)](https://appshunter.io/ios/app/construcalc/id1241654573/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **76.9% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 43 MB | 16 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marcus Borges](https://appshunter.io/developer/1241654572) | [CONGREGACAO CRISTA NO BRASIL](https://appshunter.io/developer/1485102868) |

## What reviewers say

### ConstruCalc

[App page](https://appshunter.io/ios/app/construcalc/id1241654573)

Accurately estimate building materials and quantities for construction and renovation projects. Avoid waste, improve budgets, and reduce costs by precisely calculating needs for concrete, walls, floors, tiles, and more.

**Highlights:** Material quantity calculation, Concrete estimation, Wall and floor material calculation, Tile and flooring estimation, Staircase and plaster calculation, Paint and PVC material needs, Useful construction tables

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

**In-app purchases:** none


### SIGA App

[App page](https://appshunter.io/ios/app/siga-app/id1485102869)

This application is designed for the iOS platform to manage information within the Siga system. It allows users to record incoming collections and track deposits made.

**Highlights:** Siga system information management, Record incoming collections, Track deposits made, iOS platform compatibility, Information system integration

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

**In-app purchases:** none


## Frequently asked questions

### Is ConstruCalc free?

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

### Is SIGA App free?

SIGA App is free to download, with no in-app purchases.

### Do ConstruCalc or SIGA App have ads?

Neither ConstruCalc nor SIGA App shows ads.

### Which is updated more often, ConstruCalc or SIGA App?

ConstruCalc ships an update every 5 weeks, and SIGA App every 2 months. Most recently, ConstruCalc was updated on October 16, 2026 and SIGA App on October 10, 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.*