# RTI SMARTHOME vs Construction Calculator °

The clearest difference is in-app purchases: RTI SMARTHOME at none against Construction Calculator °'s 2. RTI SMARTHOME also leads on update cadence (every 3 months vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

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

RTI SMARTHOME ships an update every 3 months, Construction Calculator ° every 8 months. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | RTI SMARTHOME | Construction Calculator ° |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/construction-calculator/id6747843052/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | — | Freemium |
| Size | 111 MB | 2 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rural Telephone Inc](https://appshunter.io/developer/1654109406) | [Nikhil Kumar](https://appshunter.io/developer/1783391273) |

## What reviewers say

### RTI SMARTHOME

[App page](https://appshunter.io/ios/app/rti-smarthome/id6444355070)

**Features:** Vision Pro support

**In-app purchases:** none


### Construction Calculator °

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

This app provides fast and accurate building calculations for construction professionals and DIYers. It offers free tools for measurements, spacing, and angles, with optional pro features for stairs, concrete, and baluster spacing via subscription.

**Highlights:** Fast, accurate building math, Type measurements naturally, Free calculators for spacing and angles, Pro calculators for stairs and concrete, Smart measurement keys, Save and share results

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

**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 RTI SMARTHOME free?

RTI SMARTHOME 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 RTI SMARTHOME or Construction Calculator ° have ads?

Neither RTI SMARTHOME nor Construction Calculator ° shows ads.

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

RTI SMARTHOME ships an update every 3 months, and Construction Calculator ° every 8 months. Most recently, RTI SMARTHOME was updated on November 7, 2026 and Construction Calculator ° on October 30, 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.*