# Natsec vs Construction Calculator °

The clearest difference is in-app purchases: Natsec at none against Construction Calculator °'s 2. Natsec also leads on iOS requirement (15.1 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Construction Calculator ° sells 2 in-app purchases, starting at $0.99 per month. Natsec asks for nothing beyond the download.

Natsec ships an update every 3 months, Construction Calculator ° every 5 months. The most recent releases landed on October 3, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Natsec | Construction Calculator ° |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/natsec/id1508977939/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free | — |
| Size | 80 MB | 2 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [National Securities](https://appshunter.io/developer/1508977938) | [Nikhil Kumar](https://appshunter.io/developer/1783391273) |

## What reviewers say

### Natsec

[App page](https://appshunter.io/ios/app/natsec/id1508977939)

Trade Mongolian stocks directly or place orders through National Securities. Manage your portfolio, track gains and losses, and handle transactions from your mobile device.

**Highlights:** Direct Mongolian Stock Exchange trading, Order placement with National Securities, Portfolio management, Dividend tracking, Income and expense tracking, Profit and loss calculation

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

**In-app purchases:** none


### Construction Calculator °

[App page](https://appshunter.io/ios/app/construction-calculator/id6747843052)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Construction Calculator Pro | $0.99 | per month |
| Construction Calculator Pro | $9.99 | per year |


## Frequently asked questions

### Is Natsec free?

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

### Is Construction Calculator ° free?

Construction Calculator ° is free to download, with in-app purchases available.

### Do Natsec or Construction Calculator ° have ads?

Neither Natsec nor Construction Calculator ° shows ads.

### Which is updated more often, Natsec or Construction Calculator °?

Natsec ships an update every 3 months, and Construction Calculator ° every 5 months. Most recently, Natsec was updated on October 3, 2026 and Construction Calculator ° on September 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*