A Little Brighter is designed for Lightroom mobile and gives one-click editing to your photos. Included is:
DNG file to upload directly to Lightroom mobile
Please note: I recommend downloading on a laptop or desktop PC and then adding the DNG file to a cloud service you can access from your mobile. If you need help with installation then use the tips in this blog post - How to Install Lightroom Presets.
You do not need a Lightroom subscription for this product - it works on mobile without an Adobe Subscription.