---
title: "RedX Stairs - 3D Calculator - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Discover the next level of stair construction with the RedX Stair App, now fully enhanced with stunning 3D capabilities. This app is your essential companion for efficient and precise stair measuremen"
---

# RedX Stairs - 3D Calculator — United States
> Design & Calculate Stairs

![RedX Stairs App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/b5/ed/23/b5ed23c6-7c12-55b4-bee0-3516f12d235d/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [RedX Technology](https://apptail.io/developer/redx-technology-epc)
**Category:** Utilities
**Rating:** 4.5/5 (388 ratings)
**Price:** Free
**Bundle ID:** com.RedXApps.Stairs
**Store:** Apple App Store
**Country:** United States
**Version:** 3.1.6 (released 2026-06-17)
**Original Release:** 2021-10-24
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1589688170)
**AppTail Page:** [https://apptail.io/app/redx-stairs-3d-calculator-bdhe/united-states](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/united-states)

## RedX Stairs Description
Discover the next level of stair construction with the RedX Stair App, now fully enhanced with stunning 3D capabilities. This app is your essential companion for efficient and precise stair measurement and visualization. Featuring a wide selection of calculators for every type of stair configuration including Straight Stairs , L-Shaped Stairs, U-Shaped Stairs, Spiral Stairs, Winder Stairs, Corner Deck Stairs and more, it effortlessly simplifies the most complex stair calculations. Whether you're working in CM, MM, Feet, or Inches, this app ensures versatile and accurate measurements for professionals and DIY enthusiasts alike.

Key Upgrades and Features:

Advanced 3D visualization for all stair types, offering a dynamic and immersive design experience
Comprehensive suite of calculators for Straight, L, U, Spiral Stairs, Winders, and more, accommodating any project requirement
Interactive, to-scale stair plans with precise measurements, enhancing design accuracy and efficiency
Multifaceted measurement support in CM, MM, Feet, and Inches for global applicability
Efficient project management options: Print, Share, Save to Photos, or Store designs in-app for future reference
Detailed plans and measurements for common stair builds, including stringer details for unparalleled clarity
Specialized tools for designing Spiral, Curved, and Winder stairs with customizable specifications
Exclusive Features for Enhanced Design:

Enter key details like Total Rise, Stringer, and Tread information to instantly generate detailed, to-scale stair plans
Customize your stair designs with adjustable Stair Angles, Step Numbers, and more for perfect fit and function
For Spiral and Curved Stairs, specify Total Rise, Rotation, and Radius to receive plans with Inner and Outer Stringer measurements
Unique Winder Stairs feature for detailed planning of each tread, ensuring precise execution of complex designs
Specialized calculators for Hip Stringers and Stairs with Landings, offering comprehensive design solutions
The RedX Stair App is the ultimate tool for transforming your stair design process with the power of 3D visualization. Download now to experience unparalleled precision and creativity in stair design. Stay ahead with continuous updates and new features, elevating your design capabilities to new heights.

----------
Terms Of Use


In-app purchases available for premium features. Subscription options include a monthly or yearly Stairs App Pro Subscription, with payment charged to your iTunes account and easy management of auto-renewal settings in the App Store. Pricing details and subscription terms available within the app.

## RedX Stairs Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/60/0a/8e/600a8eb0-4db6-4fbd-ade0-d4c7851cf288/b19b96ec-dd9a-47dc-ab53-4b8a40a214ea_image1.jpeg/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/75/34/fb/7534fb3a-4e52-6f9e-6244-8311279e476c/ffe5b2cb-6bec-4ee4-9ab0-f32e44497074_image2.jpeg/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/dc/15/22/dc152235-9187-5579-4053-c9032fc6d6db/07efd119-ceea-4bbc-be08-22815aaf17fc_image3.jpeg/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/29/81/65/298165a8-76ad-a8f7-ef0b-25ddfca37bf5/e070d340-5f0e-49dd-9d31-645020a2b6dc_image4.jpeg/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/a9/25/9a/a9259a4d-8cbe-b9f2-8af8-9bc3297bfad9/fe90363d-c133-433e-afb5-8cb008611e05_image5.jpeg/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/86/2f/bf/862fbfe5-ef00-2a8a-79f5-7e4fc0fe37b4/b1f7e2e3-5c6e-44f8-8993-d0a6fe0cb763_image6.jpeg/1242x2688.png)

## RedX Stairs Rating Breakdown in United States
- 5 stars: 316 (81%)
- 4 stars: 25 (6%)
- 3 stars: 11 (3%)
- 2 stars: 2 (1%)
- 1 stars: 34 (9%)

## RedX Stairs Reviews in United States

### *---- "Scam to charge you 60.00"
Do not download it gets your Apple ID and if you don’t cancel it in 7 days charges you 60.00 SCAMMERS.
-- stair building homeowner, 2025-05-02

### ***** "Ref x"
Great app for new or pros this app shows you a clear detail pdf of your project in full detail on what you are building! GJG Inc
-- GJG INC, 2025-04-26

### *---- "Horrible 🤮"
At first, when I was paying for my subscription it was amazing, however 2 weeks after my subscription expired, I can’t view, edit, make a pdf, print, or share my projects, I don’t recommend it because it’s expensive and is missing many things/options for stairs
-- R&R Carpentry LLC, 2025-04-24

### *---- "Paid for a year lost work"
I paid for a year then canceled the subscription and it did not keep any of the work even though it had been 1 week. I just didn’t want to have it subscribed knowing I wouldn’t need it more than a month or two.
-- R double L, 2025-02-26

### *---- "Not complete"
Does not do spiral staircases
-- Pineapples105, 2025-02-15

### ***** "Really excellent design app!"
Needed to do a quick design for a riser stair. Given the variables it was getting messy to model. This did it in seconds. Love the views, and the ability to do “what if” scenarios. Great!!
-- kalide, 2024-08-24

### ***** "Fantastic app for stairs"
What a great app. It helped me build a set of 90 degree stairs. Entering the height I was able to adjust landing position, step height, tread width;  run etc until I got the prefect design for my application. So many variables to accommodate your individual needs

Easy to print out the designs for use on the job sight. The cut list and layouts were super easy to understand and apply to the 2x12 stringers so they came out perfect. 

I look forward to using the deck app when I need to build my deck
-- rockin rap pop master, 2024-04-04

### ***** "Stair app"
App was very helpful designing my stairs with limited space available.

Thank you.
-- Cabin builders, 2024-02-22

### *---- "Horrible"
unaccessible app till you literally have to pay for a fake 7 day free trial … took the money from my bank 2 minutes later. dont use
-- vesiree, 2023-12-14

### *---- "Subscription waste of money from the start"
Tried to calculate stairs with only 18” overall rise. Said that number was too small. Found a free stair calculator online that worked just fine. I wasted my money.
-- dsmv324, 2022-09-07

### *---- "Doesn’t tell you it’s 40 some dollars per month"
This app stinks. It doesn’t tell you it’s over 40 a month to use it.
-- RK Sew, 2022-05-25

### *---- "Can’t do anything without subscription"
Nothing, nada, zilch until you pay the piper
-- Eherby, 2022-05-24

### *---- "Item is free to download. Costs to use"
So you’re looking to build stairs?  Great app!  Just download it, sign into their account for some unknown reason…. Then sign up. 

All features are pro. All features cost a subscription cost. 

Look, might be a good app, but I don’t know since I’m not signing up and paying 25$ a year to use it. 

Garbage.
-- Bmpreston, 2022-01-08

### ***-- "Seems to be a decent app"
The apps for walls and roofs seem to be decent and helps speed most cases up but I really think if I paid for the walls app and roof app I should get the stairs app for free considering it cost less for all 3 in a bundle than I paid for 2 apps.
-- AAF22721, 2021-12-01

[View all RedX Stairs reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)

## RedX Stairs In-App Purchases
| Item | Price |
|------|-------|
| RedX Stairs Premium | $59.99 |
| RedX Stairs Pro | $69.99 |
| RedX Stairs Monthly | $6.99 |
| RedX Apps Bundle | $99.99 |
| RedX Apps Bundle  | $119.99 |
| RedX Apps Pro++ | $9.99 |


## RedX Stairs Discovered Keywords
- stair calculator
- stair builder
- stair stringer calculator
- my carpentry
- limone piemonte
- stair
- carpentry formulator
- building stairs
- 3d calculator

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## RedX Stairs Available In
- [United States](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/united-states)
- [Canada](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/canada)
- [Russia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/russia)
- [France](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/france)
- [Ukraine](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/ukraine)
- [United Kingdom](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/united-kingdom)
- [Australia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/australia)
- [Mexico](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/mexico)
- [Germany](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/germany)
- [Poland](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/poland)
- [Italy](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/italy)
- [Romania](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/romania)
- [Brazil](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/brazil)
- [China](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/china)
- [Sweden](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/sweden)
- [Belgium](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/belgium)
- [Norway](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/norway)
- [Argentina](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/argentina)
- [Taiwan](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/taiwan)
- [Türkiye](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/turkey)
- [Philippines](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/philippines)
- [Chile](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/chile)
- [Vietnam](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/vietnam)
- [Portugal](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/portugal)
- [New Zealand](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/new-zealand)
- [Croatia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/croatia)
- [Israel](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/israel)
- [Uruguay](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/uruguay)
- [Thailand](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/thailand)
- [Switzerland](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/switzerland)
- [Colombia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/colombia)
- [Lithuania](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/lithuania)
- [South Korea](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/south-korea)
- [Denmark](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/denmark)
- [Czechia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/czechia)
- [Japan](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/japan)
- [Saudi Arabia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/saudi-arabia)
- [Slovakia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/slovakia)
- [Kazakhstan](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/kazakhstan)
- [Netherlands](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/netherlands)
- [South Africa](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/south-africa)
- [Spain](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/spain)
- [Ecuador](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/ecuador)
- [North Macedonia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/north-macedonia)
- [Hong Kong SAR China](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/hong-kong)
- [Uzbekistan](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/uzbekistan)
- [Azerbaijan](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/azerbaijan)
- [Austria](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/austria)
- [Latvia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/latvia)
- [Indonesia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/indonesia)
- [Cyprus](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/cyprus)
- [Egypt](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/egypt)
- [Oman](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/oman)
- [Panama](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/panama)
- [Peru](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/peru)
- [Estonia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/estonia)
- [Pakistan](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/pakistan)
- [Algeria](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/algeria)
- [Dominican Republic](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/dominican-republic)
- [United Arab Emirates](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/united-arab-emirates)
- [Armenia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/armenia)
- [Singapore](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/singapore)
- [Slovenia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/slovenia)
- [Belarus](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/belarus)
- [Tunisia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/tunisia)
- [Brunei](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/brunei)
- [Bahrain](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/bahrain)
- [Bulgaria](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/bulgaria)
- [Ireland](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/ireland)
- [Iceland](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/iceland)
- [India](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/india)
- [Hungary](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/hungary)
- [Jordan](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/jordan)
- [Kenya](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/kenya)
- [Kuwait](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/kuwait)
- [Sri Lanka](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/sri-lanka)
- [Greece](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/greece)
- [Madagascar](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/madagascar)
- [Malta](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/malta)
- [Finland](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/finland)
- [Malaysia](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/malaysia)
- [Nigeria](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/nigeria)
- [Nepal](https://apptail.io/app/redx-stairs-3d-calculator-bdhe/nepal)

---

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