fieldenm wrote:I have Co-Pilot installed for no-data emergencies, often Cornwall or The Peak District. Co-Pilot isn't great, but it has a full UK map installed on the phone memory so no connection is required - just GPS.

Could I ask whether that's the free or premium (£19.99) version? I had a look at the free one, and saw that it requires access to my contact list and call log, so I won't be using it. Does the premium also require that access as well?

I've had a look at the Co-pilot privacy policy and am a lot more comfortable now. It was the extended explanation of the app permissions requested for social information that had me worried. I don't know whether that's generic Play Store text, or specifically set by the Co-pilot app.

The points it made about what malicious apps could do with the data made my professional data protection hat leap in the air and stopped me going any further with the install.

I fully accept the justification for access to my contacts - I'm not so sure about the call logs. The app can get the address and phone number from my contact. It doesn't need to know when I last called them and how frequently. Principles 2 and 3 of the DP Act come to mind as applicable and I have to wonder whether, by giving the app permission to access my contact information (which certainly constitutes personal data and may even be, in some cases, sensitive personal data), I'm also in danger of breaching Principle 8, even though the Act is aimed at organisations' rather than individuals' use of personal data.

However, I do accept that this has absolutely nothing to do with the OP's query! I believe the solution to ensure you have the maps cached in your phone is to set up your route while the phone has a data connection either by cellular network or wi-fi. Waze will download and cache all the necessary tiles for that route (according to previous posts on the topic). Going exploring without a set route will lead to the map disappearing whenever you move onto a tile that hasn't been downloaded and there's no network connection.

HTH