# Staircase Calculator & Planner vs Stringer

The clearest difference is update cadence: Stringer at weekly against Staircase Calculator & Planner's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Staircase Calculator & Planner sells 3 in-app purchases, starting at $1.99 per month and Stringer sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Staircase Calculator & Planner ships an update every 3 months, Stringer weekly. Both last shipped on October 28, 2026.

## The numbers

| Metric | Staircase Calculator & Planner | Stringer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (5 ratings)](https://appshunter.io/ios/app/stringer-stair-layout/id6784882437/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Free |
| Size | 12 MB | 1 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vladislav Zhirnov](https://appshunter.io/developer/1476188065) | [家宝 戴](https://appshunter.io/developer/1826395838) |

## What reviewers say

### Staircase Calculator & Planner

[App page](https://appshunter.io/ios/app/staircase-calculator-and-planner/id6756850142)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version / monthly | $1.99 | per month |
| Full version / year | $4.99 | per year |
| Full version | $9.99 | one-time |


### 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 (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stringer Pro Monthly | $7.99 | per month |
| Stringer Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is Staircase Calculator & Planner free?

Staircase Calculator & Planner is free to download, with in-app purchases available.

### Is Stringer free?

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

### Do Staircase Calculator & Planner or Stringer have ads?

Neither Staircase Calculator & Planner nor Stringer shows ads.

### Which is updated more often, Staircase Calculator & Planner or Stringer?

Staircase Calculator & Planner ships an update every 3 months, and Stringer weekly. Most recently, Staircase Calculator & Planner was updated on October 28, 2026 and Stringer on October 28, 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.*