RedX Stairs - 3D Calculator

3.1.9

RedXApps

3.54

1,026 reviews

100,000+
Downloads

Free

3D Stair Design: Straight, Spiral, Winder Stairs, Stringer PDFs, Share Plans

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3.54 · 1,026 reviews · 100,000+ downloads

Download from Google Play

RedX Stairs - 3D Calculator combines immersive 3D visualization with a focused suite of stair calculators, from Straight to Spiral and Winder designs, plus to-scale plans and multi-unit measurements. With 100,000+ total downloads and 2.1K in the last 30 days, it serves professionals and DIY enthusiasts seeking precise stair design.

Pros & Cons

Offers immersive 3D visualization for diverse stair configurations
Extensive calculators for straight, L-, U-, spiral, and winder stairs
Multi-unit measurement support (CM, MM, feet, inches) for global use
In-app design storage, sharing, printing, and plan management

Not ranked in any top lists, limiting visibility versus competitors
In-app purchases (Stairs App Pro) may require ongoing subscriptions for premium features
Broad permission set (including location, microphone, Bluetooth, and ads IDs) warrants user privacy review

About RedX Stairs - 3D Calculator

RedX Stairs - 3D Calculator is a tools app developed by RedXApps.

Download Statistics

RedX Stairs - 3D Calculator has been downloaded 190 thousand times. In the last 30 days, the app was downloaded 2.1 thousand times.

User Ratings

RedX Stairs - 3D Calculator is rated 3.54 out of 5 stars. The rating is based on 1 thousand ratings.

App Information

RedX Stairs - 3D Calculator is FREE to download. The APK download size is 113.28 MB. The latest version available is 3.1.9. The last update was on July 31, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play since November 2021.

Description

Discover the next level of stair construction with the RedX Stair App, now fully enhanced with stunning 3D capabilities.

More data about RedX Stairs - 3D Calculator

Price	Free to download
Total downloads	190 thousand
Recent downloads	2.1 thousand
Rating	3.54 based on 1 thousand ratings
Ranking	Not ranked
Version	3.1.9
APK size	113.3 MB
Number of libraries	?
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Google Play Rating history and histogram

Rating history

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Downloads over time

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RedX Stairs - 3D Calculator has been downloaded 190 thousand times. Over the past 30 days, it averaged 72 downloads per day.

Changelog of RedX Stairs - 3D Calculator

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Developer information for RedXApps

RedXApps

josh@redxroof.com

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Comments on RedX Stairs - 3D Calculator for Android

★★★★★ Theresa Horne · Feb 19, 2024

I hate doing stair math and this app is the simplest and easiest one that covers everything necessary like flooring thickness which is usually forgotten in other stair calculators. Great app!

★★★★★ Chris Stirm · Dec 22, 2024

I thought it was an amazing app. I just don't have a need to purchase it. If I needed to use it more than once I would've been more than happy to purchase it. This works amazing for non-standard stairs or complex stairs. Gives complete dimensions to follow to build the stairs. The app itself was easy to use. Very user-friendly I could Intuit how to use the app. Didn't need to go find any instructional videos to learn the app.

★☆☆☆☆ Charlie Shread · Sep 8, 2022

This is a paid app and it's not cheap. It's free to download, but you literally cannot do anything unless you pay for the pro subscription. How infuriating! They should make that clear before downloading. Or at least make one of the stair types free, so we know what it's like before paying for the rest. But for now, this is an immediate uninstallation for me.

★☆☆☆☆ Jon Bjarki Gunnarsson · Jun 17, 2025

Very disappointed. Using RedX Stair Pro designing a C shaped steir. Unfortunately delivered completely unusable designs. App did not offer support for using European measurements (cm, mm). Tried fiddling with the measurements but small changes in measurements completely changed the layout.

★☆☆☆☆ Robert Schuler Sr · May 28, 2022

The app simply buffers and buffers when I'm running full bars 5g ? And when she ain't buffering she's so full of ads it'll make you stab yourself in the eye with your pencil

★☆☆☆☆ sto cephas · May 18, 2026

Not worth the subscription, even free, if you can't build without the app, you should hire someone who can ......this app won't save you if you don't already know.

Google Play Rankings for RedX Stairs - 3D Calculator

This app is not ranked

Technologies used by RedX Stairs - 3D Calculator

20 permissions

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Trust & Safety: The app requests a broad range of permissions typical for a free utility with ads, including ad IDs, location, network, storage, and notifications, plus Bluetooth and microphone access. Users should review the app’s privacy policy and permission prompts, especially in relation to in-app purchases (Pro subscriptions) and data handling.

Frequently asked questions about RedX Stairs - 3D Calculator

Is RedX Stairs - 3D Calculator free?

Yes. RedX Stairs - 3D Calculator is free to download from Google Play.

Is RedX Stairs - 3D Calculator still available?

Yes. RedX Stairs - 3D Calculator is on Google Play, and the last update we saw was on July 31, 2026.

Does RedX Stairs - 3D Calculator contain ads?

No. Google Play does not list RedX Stairs - 3D Calculator as containing ads.

How large is the RedX Stairs - 3D Calculator APK?

The RedX Stairs - 3D Calculator APK is 113.28 MB.

Is RedX Stairs - 3D Calculator suitable for children?

Google Play rates the content of RedX Stairs - 3D Calculator as suitable for everyone.

How many times has RedX Stairs - 3D Calculator been downloaded?

Google Play lists 100,000+ downloads for RedX Stairs - 3D Calculator.

How do people rate RedX Stairs - 3D Calculator?

RedX Stairs - 3D Calculator scores 3.54 out of 5 stars, from 1,026 ratings on Google Play.

Who made RedX Stairs - 3D Calculator?

RedX Stairs - 3D Calculator was developed by RedXApps. It is listed in the tools category on Google Play.

What are the best alternatives to RedX Stairs - 3D Calculator?

People looking at RedX Stairs - 3D Calculator also look at these tools apps: Classic stair calculator, Stairs-X Lite - Calculator, Stairs-X Pro Stairs Calculator, Stair Calculator Riser Tread, Construction Calculator (feet).

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