Use APKPure App
Get qalculate old version APK for Android
Una semplice calcolatrice con pulsanti personalizzabili
A single-digit calculator where you can replace buttons with your pics, by using the 𝗾𝗹𝗮𝗶𝗾 app: https://play.google.com/store/apps/details?id=app.qlaiq.
The app needs storage permission so that you can use your own pics.