A community minded app for people with dementia if they are missing

Purple Alert is a free app designed by people living with dementia and carers, Alzheimer Scotland staff, Police Scotland, Social Work, Dementia Friends Scotland, Health and Social Care Partnerships and Telecare Services.

After successfully reach our milestone of 10,000 downloads, Purple Alert has gone through a major design and functionality upgrade. While the main functionality is still helping finding a person with dementia if they’re lost, the new app serves tailored content to users, depending on where you are in Scotland or when you use the app. 

Download the all new Purple Alert Scotland app

On iOS

iOS Download Button


On Android

Android Download Button


Frequently Asked Questions

The new Purple Alert Scotland app is completely different from the old app. Alzheimer Scotland will no longer support the old app going forward and we strongly recommend you to delete the old app and download the new one. If you have questions regarding your old app, its data and what to expect going forward please consult our Frequently Asked Questions page.

Resources for families

Preventative, Emergency and Reflective toolkits

A Step-by-step guide for families designed to help before, during and after someone with dementia is missing.

The Herbert Protocol

We think the Herbert Protocol is as important as Purple Alert.  The Herbert Protocol is a form designed to make sure that if someone goes missing, the Police can get access to important information about that person as soon as possible.   We highly recommend you print this form and fill it in with as much information as possible now, before a moment of crisis.  Then keep it in a safe place and give it to the Police if the person you're caring for goes missing. 

Resources for the community

Good practice guide

Simple guidelines for the Purple Alert community of users. This toolkit explains what to do if someone is missing in your area. It's a short 'good practice' document to make sure you can help finding the missing person in a meaningful way. 

Spread the word

You can make your area safer for people with dementia by raising awareness about Purple Alert. You can share this page by using the social media buttons below, or simply tell a friend, a colleague or a neighbour to download the app. If you would like your organisation to endorse or sponsor Purple Alert, do get in touch and we'll be supporting you throughout.