RedX Stairs - 3D Calculator

3.1.7

RedXApps

3.52

987 reviews

100,000+
Downloads

Free

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

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Pros & Cons

Immersive 3D visualization enhances design precision
Extensive stair-type calculators cover straight, spiral, winders, and more
Multi-unit measurements (CM, MM, Feet, Inches) for global projects
Integrated project workflow: Print, Share, Save, and Store designs

Limited to stair-focused calculations; lacks general construction calculators (area, volume, etc.)
In-app purchases and Pro subscription may be required for premium features
Not ranked in top app lists (no top-list placement in provided data)

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 180 thousand times. In the last 30 days, the app was downloaded 3.1 thousand times.

User Ratings

RedX Stairs - 3D Calculator is rated 3.52 out of 5 stars. The rating is based on 990 ratings.

App Information

RedX Stairs - 3D Calculator is FREE to download. The APK download size is 110.10 MB. The latest version available is 3.1.7. The last update was on June 22, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play 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	180 thousand
Recent downloads	3.1 thousand
Rating	3.52 based on 990 ratings
Ranking	Not ranked
Version	3.1.7
APK size	110.1 MB
Number of libraries	?
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Alternative downloads for the RedX Stairs - 3D Calculator app

RedX Stairs - 3D Calculator compared with similar apps

Common keywords of similar apps

Plans Redx Winder Straight Visualization Calculators Designs Detailed Details Terms Subscription Share Enhanced Capabilities Efficient Measurement Including Shaped Complex Cm Mm Key Offering Experience Comprehensive Project Scale Management Options Store Unparalleled Specialized Curved Total Rise Information Stair Stairs App Design Spiral Features Stringer Measurements Precise Feet Inches Tread

Keywords missing from this app

Calculator Construction Calculate Calculations Concrete Pro Shape Master Metric Drawings Advanced Calculation Tool Calc Accurate Results Slide Inch Turn Simple Easy Projects Fast Fractions Tools Roofing Material Function Fence Buildcalc Height Angle Zig Zag Staircase Roof Free Angles

Google Play Rating history and histogram

520

270

Downloads over time

RedX Stairs - 3D Calculator has been downloaded 180 thousand times. Over the past 30 days, it averaged 100 downloads per day.

Changelog of RedX Stairs - 3D Calculator

Show changelog

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.

★☆☆☆☆ 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.

★☆☆☆☆ 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.

★☆☆☆☆ 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.

★☆☆☆☆ 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

Google Play Rankings for RedX Stairs - 3D Calculator

This app is not ranked

Technologies used by RedX Stairs - 3D Calculator

RedX Stairs - 3D Calculator is requesting 20 permissions and we don't have library information (yet).

Permissions

Development tools

test access to protected storage

Your location

precise (GPS) location

Network communication

view network connections, view Wi-Fi connections, pair with Bluetooth devices, full network access, Google Play billing service, receive data from Internet

Your accounts

read Google service configuration

Storage

modify or delete the contents of your USB storage

Hardware controls

record audio

System tools

access Bluetooth settings, prevent phone from sleeping

Extra

android.permission.ACCESS_ADSERVICES_AD_ID, android.permission.ACCESS_ADSERVICES_ATTRIBUTION, android.permission.BLUETOOTH_CONNECT, android.permission.POST_NOTIFICATIONS, com.RedxApps.redx_stairs.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION, com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE, com.google.android.gms.permission.AD_ID

We haven't collected library information for this app yet. You can use the AppBrain Ad Detector app to detect libraries in apps installed on your device.

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