# Staircase3D: Stair Calculator — Stair Calculator & 3D Design

> Stair Calculator & 3D Design (iPhone/iPad app by Widding Systems AS.)

- Source: https://appshunter.io/ios/app/staircase3d-stair-calculator/id6778939838 (this page in markdown: same URL + `.md`)
- Developer: [Widding Systems AS](https://appshunter.io/developer/6778939840)
- Category: Graphics & Design, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 22 MB
- Languages: American English, Arabic, Danish, Dutch, Finnish, French (France), German (Germany), Hebrew, Hindi, Icelandic and 11 more
- Released: 2026-09-24
- Data updated: 2026-10-13

## What is Staircase3D?

Staircase3D: Stair Calculator

Plan your staircase with stair stringer calculation, tread depth, riser height and landing dimensions. Calculate stringer geometry and inspect your staircase design in 3D.

Measure from finished floor to finished floor. Draw from the bottom of the staircase to the top. Two nodes per level are free; three or more require paid editing access.

Use 3D to inspect the stair and Save to commit the whole project. Recovery drafts are separate from saved projects. Always verify dimensions, construction and local requirements with a qualified professional.

Projects with up to two nodes per level are free. Keep unlimited projects. Saved 3D views, drawings, notes and exports remain available after your subscription ends.

Unlock editing for projects with three or more nodes on any level.

Eligible subscribers get the first month free, then pay the regular monthly price. Cancel before the trial ends to avoid being charged.

Renews automatically at the regular monthly price until cancelled in your Apple subscription settings.

Permanent editing access for all your projects. No recurring charge.

A lifetime purchase does not cancel your current subscription. Manage it with Apple to avoid further subscription charges.

Apple licence agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Is Staircase3D safe?

Not enough ratings yet to assess Staircase3D.

## Is Staircase3D legit?

Staircase3D: Stair Calculator has limited verification signals. The AppsHunter Legitimacy Score for Staircase3D is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.0.2 — 2026-10-09

Improvements to staircase editing and navigation. Closing an unfinished staircase now returns you to the model selector. Dimension changes are clearer, with confirmation before extending the final tread.

### 1.0.1 — 2026-10-06

Redesigned purchase screen with clearer monthly and lifetime options. Simpler staircase creation, clearer controls for editing dimensions, and support for cast staircase modelling.

### 1.0 — 2026-09-24

No release notes.

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## Related topics

[staircase calculator](https://appshunter.io/ios/topics/staircase-calculator) · [app builder free stair](https://appshunter.io/ios/topics/app-builder-free-stair) · [stair and angle calculator](https://appshunter.io/ios/topics/stair-and-angle-calculator) · [staircase calculator & planner](https://appshunter.io/ios/topics/staircase-calculator-planner) · [stair calculator plus](https://appshunter.io/ios/topics/stair-calculator-plus) · [stair stringer calculator pro](https://appshunter.io/ios/topics/stair-stringer-calculator-pro) · [stair calculator pro](https://appshunter.io/ios/topics/stair-calculator-pro) · [stair calculator with stringer details](https://appshunter.io/ios/topics/stair-calculator-with-stringer-details)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-13.*