# Calculations Polycarbonate vs Smart Construction Tools

The clearest difference is update cadence: Smart Construction Tools at fortnightly against Calculations Polycarbonate's every 5 months. Calculations Polycarbonate's advantage is review sentiment (100% vs 73%) and iOS requirement (9.3 vs 18.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Calculations Polycarbonate sells 1 one-off in-app purchase and Smart Construction Tools sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Calculations Polycarbonate ships an update every 5 months, Smart Construction Tools fortnightly. The most recent releases landed on September 17, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Calculations Polycarbonate | Smart Construction Tools |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 72.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 29 MB | 72 MB |
| Requires iOS | **9.3** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shamil Berdiev](https://appshunter.io/developer/1166005866) | [Dmitrii Gorbachev](https://appshunter.io/developer/1565707272) |

## What reviewers say

### Calculations Polycarbonate

[App page](https://appshunter.io/ios/app/calculations-polycarbonate/id1166005867)

This reference app helps calculate various loads and properties of polycarbonate for construction projects like greenhouses and awnings. It determines snow and wind loads, rafter and arch spacing, thermal conductivity, and light transmission.

**Highlights:** Snow load calculation, Wind loading calculation, Rafter distance calculation, Arch support spacing calculation, Thermal conductivity calculation, Light transmission calculation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO-VERSION | $0.99 | one-time |


### Smart Construction Tools

[App page](https://appshunter.io/ios/app/smart-construction-tools/id1565936353)

This construction calculator app helps builders estimate materials and volumes for various projects, including foundations, walls, roofs, and earthworks. It features a unit converter and detailed calculations for concrete, rebar, lumber, and more, aiding in material purchasing and project planning.

**Highlights:** Foundation calculations (slab, strip, circular, etc.), Wall material estimation (brick, block, insulation), Roofing material calculations, Lumber and timber calculations, Metal structure calculations, Earthwork volume estimation, Unit conversion tool

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Six months | $11.99 | per 6 months |
| Yearly | $19.99 | per year |


## Frequently asked questions

### Is Calculations Polycarbonate free?

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

### Is Smart Construction Tools free?

Smart Construction Tools is free to download, with in-app purchases available.

### Do Calculations Polycarbonate or Smart Construction Tools have ads?

Neither Calculations Polycarbonate nor Smart Construction Tools shows ads.

### Which is updated more often, Calculations Polycarbonate or Smart Construction Tools?

Calculations Polycarbonate ships an update every 5 months, and Smart Construction Tools fortnightly. Most recently, Calculations Polycarbonate was updated on September 17, 2026 and Smart Construction Tools on September 26, 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.*