# RedX Stairs - 3D Calculator — user reviews > 27 indexed App Store user reviews of RedX Stairs by RedX Technology Inc, rated 4.50/5 from 407 ratings. - Source: https://appshunter.io/ios/app/redx-stairs-3d-calculator/id1589688170/reviews - App overview in markdown: https://appshunter.io/ios/app/redx-stairs-3d-calculator/id1589688170.md - Rating breakdown: 5★ 327 · 4★ 27 · 3★ 11 · 2★ 3 · 1★ 39 ## What do users think of RedX Stairs? Overall sentiment: negative **Pros** - 👍 Great for pros and new users - 💡 Detailed project PDFs - 💡 Excellent for riser stairs - 💡 Handles complex stair designs - 💡 Useful for limited space - 💡 Easy to print designs - 💡 Clear cut lists and layouts **Cons** - 👎 App gets stuck on opening screen - 👎 Scam to charge $60 - 👎 Subscription expired, can't view/edit - 👎 Expensive and missing options - 👎 Paid for a year, lost work after canceling - 👎 Does not do spiral staircases - 👎 Can't use features without subscription - 👎 Repeatedly redirects to subscription page - 👎 Difficult to cancel - 👎 Unaccessible without paying - 👎 Charged immediately for trial - 👎 Paid version has nothing - 👎 Subscription waste of money - 👎 Can't calculate small rises - 👎 Money pit, £80/year - 👎 Doesn't disclose monthly cost - 👎 Over $40 per month - 👎 Can't do anything without subscription - 👎 All features cost subscription - 👎 Useless without subscription - 👎 Similar tools available for free - 👎 New features slow and confusing - 👎 3D model too detailed for field **Commonly reported bugs** - App gets stuck on opening screen - App repeatedly redirects to subscription page - Lost work after canceling subscription **Most requested features** - Support for spiral staircases - Include stairs app in bundle - More features in paid version ## Newest reviews (8 of 27) ### 1/5 — Horrible *2023-12-14, version 2.0.8* unaccessible app till you literally have to pay for a fake 7 day free trial … took the money from my bank 2 minutes later. dont use ### 1/5 — Subscription waste of money from the start *2022-09-07, version 1.1* Tried to calculate stairs with only 18” overall rise. Said that number was too small. Found a free stair calculator online that worked just fine. I wasted my money. ### 1/5 — Money pit *2022-07-21, version 1.1* You can’t do a thing without paying £80 a year! Total rip off ### 1/5 — Doesn’t tell you it’s 40 some dollars per month *2022-05-25, version 1.1* This app stinks. It doesn’t tell you it’s over 40 a month to use it. ### 1/5 — Can’t do anything without subscription *2022-05-24, version 1.1* Nothing, nada, zilch until you pay the piper ### 1/5 — Would not recommend *2022-02-05* Cant use the app with out payment. ### 1/5 — Item is free to download. Costs to use *2022-01-08, version 1.1* So you’re looking to build stairs? Great app! Just download it, sign into their account for some unknown reason…. Then sign up. All features are pro. All features cost a subscription cost. Look, might be a good app, but I don’t know since I’m not signing up and paying 25$ a year to use it. Garbage. ### 1/5 — Useless *2022-01-07* This app is useless except if you have a very simple stair to design. Similar tools are available online for free. Worst money spent. ## Most critical reviews (10 lowest-rated) ### 1/5 — Way off code *2026-07-30, version 3.1.7* Wasn’t even close to code. If I made these the way it drew them somebody would have gotten injured let alone it would never pass inspection. ### 1/5 — Good app, bad subscription *2026-07-13, version 3.1.7* App works well. The problem I have is , I signed up for the free trial and when you sign up it says that the app will prompt you before your trial runs out. Never prompted me that my trial was about to run out and charged me $59 for a year subscription that I won’t use. ### 1/5 — The old app worked better *2026-06-15, version 3.1.5* Why are you attempting to add all of these new features for mobile? Did it occur to you that workers don’t always need to see this extra detail provided in the 3D model. It’s slower to load in the field and confusing for most users. ### 1/5 — App does not work *2026-02-28, version 3.1.4* It gets stuck on the opening screen ### 1/5 — Scam to charge you 60.00 *2025-05-02, version 3.1.2* Do not download it gets your Apple ID and if you don’t cancel it in 7 days charges you 60.00 SCAMMERS. ### 1/5 — Horrible 🤮 *2025-04-24, version 3.1.2* 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 ### 1/5 — Paid for a year lost work *2025-02-26, version 3.0.9* 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. ### 1/5 — Not complete *2025-02-15, version 3.0.9* Does not do spiral staircases ### 1/5 — Cant use features without subscription *2024-10-23* But once subscribed, app repeatedly redirects to subscription page. Cancelled and deleted app. ### 1/5 — Terrible *2024-06-19, version 3.0.5* Didn't do what I wanted, didn't give me the dimensions I was looking for too difficult to use. Tried canceling and I'm having a very difficult time going it, they are not helping resolve my issue either, tell me I need to go to Apple. Terrible . ## Most praised reviews (9 highest-rated) ### 5/5 — Ref x *2025-04-26, version 3.1.2* 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 ### 5/5 — Treppen in 3D konstruieren - simpel *2025-01-21* Sehr gute App für den Start, aber noch Luft nach oben. Erspart dennoch viel Zeit. ### 5/5 — Really excellent design app! *2024-08-24, version 3.0.5* 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!! ### 5/5 — Fantastic app for stairs *2024-04-04, version 3.0.4* 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 ### 5/5 — Stair app *2024-02-22, version 3.0.1* App was very helpful designing my stairs with limited space available. Thank you. ### 5/5 — Great app! *2022-02-06, version 1.1* ✅ ### 4/5 — Расчет лестницы. *2025-05-07* Очень удобное приложение. Поставил бы с радостью оценку 5. Если косоур проектировал бы из метала, ломанный косоур, на одном косоуре. ### 3/5 — Seems to be a decent app *2021-12-01, version 1.1* 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. ### 2/5 — Don’t pay for it there is nothing in paid version *2022-10-21, version 1.3* Don’t pay --- *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 2026-09-04.*