This will be part of the major v2 release scheduled for late August / early September! Presets will be synched across devices and you’ll be able to import third party preset packs (or make your own). For now, you can back up your presets by going to Export -> Generate Preset URL

@jean - Saving custom presets is supported in the next major version of Color.io - You can launch the current beta version here: https://beta.color.io

Custom cross-device presets are now out of beta and officially available in the app at app.color.io - When you save a preset, it is automatically available anywhere you sign in with your color.io account 🙌