Need sample app (iOS or Anrdoid) to control 6 relays

General
1

Would like to demo and have an app control 6 relays. Later on planning on working on a more comprehensive app.
Any ideas where I can get such an app?

2

Not a native app, but a webpage control of 8 relays, using 2 pins.

3

Thank you very much for your comments and help.

Jens

4

My iOS app Pitchfork has lots of buttons, sliders and switches that could control relays.