Lukly allows users to access their iCloud contacts remotely through SMS, providing a plan B for when their phone's battery dies and they cannot use it. This is achieved by registering the user's number and uploading their contact list to Lukly, which can then be accessed via Twilio's SMS service from another phone. When a user texts Lukly's number with a specific contact's name, the relevant contact information will be sent back in response, allowing them to select and contact the desired person. Lukly is currently offering 5 free backup credits to new sign-ups, enabling users to test this feature before committing to a paid subscription.