# Калькулятор Спирта vs Smart Construction Tools

The clearest difference is in-app purchases: Калькулятор Спирта at none against Smart Construction Tools's 3. Калькулятор Спирта also leads on device support (3 vs 1) and iOS requirement (9.0 vs 18.6). Smart Construction Tools's advantage is review sentiment (73% vs 44%). On price, update cadence and ads there is nothing between them.

Both are free to download. Smart Construction Tools sells 3 in-app purchases, starting at $2.99 per month. Калькулятор Спирта asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 13, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Калькулятор Спирта | Smart Construction Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/id1046943567/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 44.4% of reviews | **72.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 23 MB | 90 MB |
| Requires iOS | **9.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Alex Korablev](https://appshunter.io/developer/412275807) | [Dmitrii Gorbachev](https://appshunter.io/developer/1565707272) |

## What reviewers say

### Калькулятор Спирта

[App page](https://appshunter.io/ios/app/id1046943567)

This application helps calculate the necessary amounts of alcohol and water to achieve a desired alcohol mixture strength. It accounts for contraction and offers features like mixing two solutions of different strengths and diluting alcohol by weight or volume. Data is saved across all tabs.

**Highlights:** Calculate alcohol and water for desired strength, Account for contraction, Mix two solutions of different strengths, Dilute alcohol by weight and volume, Timer for distillate heads, Data saved across tabs

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 | $2.99 | per month |
| Six months | $17.99 | per 6 months |
| Yearly | $29.99 | per year |


## Frequently asked questions

### Is Калькулятор Спирта free?

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

### Is Smart Construction Tools free?

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

### Do Калькулятор Спирта or Smart Construction Tools have ads?

Neither Калькулятор Спирта nor Smart Construction Tools shows ads.

### Which is updated more often, Калькулятор Спирта or Smart Construction Tools?

Калькулятор Спирта ships an update every 2 weeks, and Smart Construction Tools every 2 weeks. Most recently, Калькулятор Спирта was updated on October 13, 2026 and Smart Construction Tools on October 21, 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.*