Topographical charts for ipad

[MachFly]

I'm looking for an app for ipad that would have downloadable topographical charts (sort of like sectionals but a lot more specific).
Was wondering if anyone used a good one that they can recommend?

Thanks

 

[BillTIZ]

I have a free app called "Topo Maps", the charts are older but they work and are free.
Check the app store.

 

[MachFly]

Thanks

 

[olasek]

I am using YouNeedAMap (free) and ScenicMap (extra detail, payware), both from the same vendor. I love maps and wanted something that is very rich in topography and detail and they seem the best of the ones I looked at.

 

[Marc CYBW]

for Canada try "Topographic Maps Canada"