What's the best GPS map app for iPhone?

I need a GOOD map where I could mark the start point and destination and it would guide me where to go. I've used the iOS map and Google maps and both got me lost!

Waze

If you have iphone 4s or 5, siri is great. Just hold the home button and say "directions to ___ from ___". I have used it countless times and haven't gotten lost at all. When you talk into siri, if the result is unclear you can also change it on the screen. After getting the map, you can change the to or from addresses. Hope I helped!

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