# Ruma vs Строительный калькулятор SO

The clearest difference is in-app purchases: Строительный калькулятор SO at none against Ruma's 3. Ruma's advantage is update cadence (every 5 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Ruma sells 3 in-app purchases, starting at $1.99 per 7 days. Строительный калькулятор SO asks for nothing beyond the download.

Ruma ships an update every 5 days, Строительный калькулятор SO monthly. The most recent releases landed on September 11, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Ruma | Строительный калькулятор SO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Size | 19 MB | 23 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Celal Anak](https://appshunter.io/developer/1828222319) | [Maksim Maltsev](https://appshunter.io/developer/1872080568) |

## What reviewers say

### Ruma

[App page](https://appshunter.io/ios/app/ruma-renovation-and-material/id6758203923)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ruma Premium - Weekly | $1.99 | per 7 days |
| Ruma Premium - Monthly | $4.99 | per month |
| Ruma Premium - Yearly | $29.99 | per year |


### Строительный калькулятор SO

[App page](https://appshunter.io/ios/app/so/id6758302848)

**In-app purchases:** none


## Frequently asked questions

### Is Ruma free?

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

### Is Строительный калькулятор SO free?

Строительный калькулятор SO is free to download, with no in-app purchases.

### Do Ruma or Строительный калькулятор SO have ads?

Neither Ruma nor Строительный калькулятор SO shows ads.

### Which is updated more often, Ruma or Строительный калькулятор SO?

Ruma ships an update every 5 days, and Строительный калькулятор SO monthly. Most recently, Ruma was updated on September 11, 2026 and Строительный калькулятор SO on October 31, 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.*