Advice on display cabinet LED setup

Hi everyone,

I am looking for a solution for my display cabinet I use for miniatures. Ive tried a couple solutions I just bought locally but not 100% happy with them as they are either not modular, are not quite the colour I want, or don't have an app to go with it (not interested in using a dedicated remote). Specifically:

• A sunlight yellow LED (can be multicolour but that's the colour I am after). So far, except the LED stick I found at IKEA (not appropriate for this cabinet) the LEDS I have found have been a little greenish when I select yellow.
• Has to be cutable so I can connect them using connectors.
• Controllable from an app (iOS for example) so I can get the right colour as opposed to playing about with a remote. And its just one less thing I need to have.

Open to advice. Thanks.