# Perfect Structure vs Foundation Footing Calculator

The clearest difference is rating: Perfect Structure at 5.0 against Foundation Footing Calculator's 3.6. Perfect Structure also leads on update cadence (every 2 days vs every 2 months). Foundation Footing Calculator's advantage is ads (none vs shown) and ratings volume (8 vs 1). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Perfect Structure sells 1 one-off in-app purchase and Foundation Footing Calculator sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Perfect Structure holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Foundation Footing Calculator has 8 ratings behind it against 1, so its average is the more settled of the two.

Perfect Structure ships an update every 2 days, Foundation Footing Calculator every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Perfect Structure | Foundation Footing Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/perfect-structure/id1581860758/reviews)** | [3.6 (8 ratings)](https://appshunter.io/ios/app/foundation-footing-calculator/id1603432083/reviews) |
| Number of ratings | 1 | **8** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 32 MB | 8 MB |
| Requires iOS | **15.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gokhan Behcet Sahin](https://appshunter.io/developer/1409805750) | [Vladislav Zhirnov](https://appshunter.io/developer/1476188065) |

## What reviewers say

### Perfect Structure

[App page](https://appshunter.io/ios/app/perfect-structure/id1581860758)

Design and optimize reinforced concrete columns and beams with support for multiple international design codes and languages. Generate reports in PDF, CSV, and DXF formats, and share them with colleagues. Offers a user-friendly interface for quick and flexible structural analysis.

**Highlights:** Reinforced concrete column and beam design, Support for 5 international design codes, Multilingual support (8 languages), Output in PDF, CSV, and DXF formats, Modern and user-friendly interface, Design checks and optimal reinforcement calculation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Perfect Structure Pro | $8.99 | one-time |


### Foundation Footing Calculator

[App page](https://appshunter.io/ios/app/foundation-footing-calculator/id1603432083)

Instantly calculate concrete foundation requirements, including rebar, excavation volumes, and material costs. Streamline construction planning and estimations with precise, material-specific calculations and smart unit conversions. Ideal for professionals and DIYers alike, it helps reduce errors and speed up project timelines.

**Highlights:** Foundation calculations (strip, slab, diagonal), Rebar quantity and spacing tool, Excavation volume and cost estimator, Smart unit conversion (metric/imperial), Material-specific densities, Offline work capability

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version / monthly | $0.99 | per month |
| Full version / year | $2.99 | per year |
| Remove ADS | $4.99 | one-time |


## Frequently asked questions

### Is Perfect Structure free?

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

### Is Foundation Footing Calculator free?

Foundation Footing Calculator is free to download, with in-app purchases available.

### Which has better reviews, Perfect Structure or Foundation Footing Calculator?

Perfect Structure is rated higher. Perfect Structure averages 5.0 out of 5 from 1 ratings, while Foundation Footing Calculator averages 3.6 from 8 ratings.

### Do Perfect Structure or Foundation Footing Calculator have ads?

Perfect Structure shows ads; Foundation Footing Calculator does not.

### Which is updated more often, Perfect Structure or Foundation Footing Calculator?

Perfect Structure ships an update every 2 days, and Foundation Footing Calculator every 2 months. Most recently, Perfect Structure was updated on November 3, 2026 and Foundation Footing Calculator on November 3, 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.*