Former health minister Lord Darzi has launched an iPhone application for patients to keep track of their NHS appointments and rate the services they use.
Lord Darzi, who quit as a minister in July 2009, hopes people will use the app just like they use online hotel and restaurant review sites.
The app, "Wellnote", lets patients enter their medical history, including whether they have allergies, specific problems and their test results. The record can then be emailed or shown to a doctor if an emergency arises.
The application contains a list of more than 2,000 medications to help people enter the specific drugs they take, and alerts can be created to tell patients when to take tablets and when they have an NHS appointment. Users can also anonymously rate healthcare services in England.
The scores will appear alongside official ratings from the Care Quality Commission (CQC) so patients can compare scores.
The app was created by Lord Darzi and his team at Imperial College Healthcare Trust and Imperial College London.
He said: "Wellnote will empower the public by giving them the tools they need to make informed decisions about their health and wellbeing.
"By designing a new way for patients to share their knowledge based on personal experience, we will continue to drive up the quality of healthcare services in this country.
"We want the public to use the application in a similar way to how they use online hotel and restaurant rating sites."
The health information contained in the app, which is free to download, is taken from the government's NHS Choices website.