Stairs Lab: Stair Calculator
app.blissom.staircalculator
FreeIn-app purchasesEveryone
Key numbers
1+Installs
n/aRating
Oct 21, 2026Released
Oct 21, 2026Updated
Listing text
3D stairs with stringer cut sheet, landings, winders & code check. No ads.
Stairs Lab is a stair calculator that shows your staircase in real 3D and gives you a stringer cut sheet you can build from. Enter the floor-to-floor height and Stairs Lab works out rise and run, the number of risers and treads, stringer length, angle and headroom, then checks the stair against IRC 2021 R311.7.EVERY STAIR LAYOUT• Straight stairs, L-shaped and U-shaped stairs with a landing• Winder stairs: L, U and C…
Get this app from the API
curl -H "X-API-Key: $API_KEY" \ "https://apiplay.net/api/v1/app?id=app.blissom.staircalculator"
import requests
r = requests.get('https://apiplay.net/api/v1/app', params={'id': 'app.blissom.staircalculator'},
headers={'X-API-Key': API_KEY}, timeout=30)
data = r.json()const res = await fetch('https://apiplay.net/api/v1/app?id=app.blissom.staircalculator', {
headers: { 'X-API-Key': process.env.API_KEY },
});
const data = await res.json();$ch = curl_init('https://apiplay.net/api/v1/app?id=app.blissom.staircalculator');
curl_setopt_array($ch, [CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => ['X-API-Key: ' . getenv('API_KEY')]]);
$data = json_decode(curl_exec($ch), true);1,000 free credits a month, no card needed. API reference
Screenshots
Fields in the API response
| Package name | app.blissom.staircalculator |
|---|---|
| Developer | Blissom Apps |
| Developer website | blissom.app |
| Category | Tools |
| Installs (exact) | 4 |
| Price | Free |
| In-app purchases | $9.99 - $59.99 per item |
| Ads | No |
| Content rating | Everyone |
| Current version | 1.0.0 |
| Requires Android | 7.0 |
| Released | Oct 21, 2026 |
| Last update | Oct 21, 2026 |
| Record refreshed | Oct 28, 2026 |
