# SMARTOBRA360 vs Stringer

The clearest difference is update cadence: Stringer at weekly against SMARTOBRA360's every 2 months. SMARTOBRA360's advantage is iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SMARTOBRA360 ships an update every 2 months, Stringer weekly. Both last shipped on October 7, 2026.

## The numbers

| Metric | SMARTOBRA360 | Stringer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/stringer-stair-layout/id6784882437/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free |
| Size | 44 MB | 1 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MaisTech Tecnologia](https://appshunter.io/developer/1868985698) | [家宝 戴](https://appshunter.io/developer/1826395838) |

## What reviewers say

### SMARTOBRA360

[App page](https://appshunter.io/ios/app/smartobra360/id6758634767)

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

**In-app purchases:** none


### Stringer

[App page](https://appshunter.io/ios/app/stringer-stair-layout/id6784882437)

This app calculates stair stringer dimensions for builders and DIYers. It provides clear options based on rise and going, with code compliance checks. All calculations and projects are saved on the device for offline use.

**Highlights:** Stair stringer calculations, Imperial/metric unit support, Building code references, Offline functionality, Project saving, Visual results and cut sheets

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

**In-app purchases:** none


## Frequently asked questions

### Is SMARTOBRA360 free?

SMARTOBRA360 is free to download, with no in-app purchases.

### Is Stringer free?

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

### Do SMARTOBRA360 or Stringer have ads?

Neither SMARTOBRA360 nor Stringer shows ads.

### Which is updated more often, SMARTOBRA360 or Stringer?

SMARTOBRA360 ships an update every 2 months, and Stringer weekly. Most recently, SMARTOBRA360 was updated on October 7, 2026 and Stringer on October 7, 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.*