# Perfect Structure vs Nivlok

The clearest difference is ads: Nivlok at none against Perfect Structure's shown. Perfect Structure's advantage is update cadence (every 2 days vs every 2 weeks) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Perfect Structure sells 1 one-off in-app purchase and Nivlok sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Perfect Structure ships an update every 2 days, Nivlok every 2 weeks. The most recent releases landed on November 3, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Perfect Structure | Nivlok |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/perfect-structure/id1581860758/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 32 MB | 50 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gokhan Behcet Sahin](https://appshunter.io/developer/1409805750) | [株式会社coroutine](https://appshunter.io/developer/1871821921) |

## 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 |


### Nivlok

[App page](https://appshunter.io/ios/app/nivlok-remote-desktop/id6760561257)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $1.99 | per 7 days |
| Monthly Plan | $3.99 | per month |
| Yearly Plan | $24.99 | per year |


## Frequently asked questions

### Is Perfect Structure free?

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

### Is Nivlok free?

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

### Do Perfect Structure or Nivlok have ads?

Perfect Structure shows ads; Nivlok does not.

### Which is updated more often, Perfect Structure or Nivlok?

Perfect Structure ships an update every 2 days, and Nivlok every 2 weeks. Most recently, Perfect Structure was updated on November 3, 2026 and Nivlok on October 11, 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.*