Snappli是一个数据压缩应用程序和服务的提供者为Android和iPhone基本上,他们为蜂窝数据提供代理服务(I’m surprised Apple allows such a thing through the App Store, if for the privacy implications alone — if you’re using this, all your cellular data traffic is visible to Snappli.)今天Snappli声称根据他们的使用数据,升级之后很快iOS 6大部分iPhone用户停止使用内置的地图应用:

Summary: before iOS 6 1 in 4 people were using Google maps at least once a dayAfter iOS 6: 1 in 25 using Apple maps and falling.


Now this is just one data point and not enough to make general conclusions, but I would not be surprised if this is just the beginning of more evidence that Apple users will not put up with degraded user experiences.

好事他没有一般结论的标题:“只有4%的iOS 6用户仍然使用苹果地图后5天”没有一般的结论,没有先生。

凯文托福-通常比这更好的工作似乎也买这个结论:“快速吸收后,苹果地图使用1在25个iOS的主人”彼得•科恩简单地调用废话,然后吉姆Dalrymple遵循了一块显示较少的数据多少新iOS地图消耗旧的相比呢Everyone knows what turn-by-turn and voice-driven directions are; I suspect most people have no idea what “vector” map tiles are or how big a difference they can make.


Except there’s one confounding factor: Google’s maps on iOS 5 use raster graphics; Apple’s Maps on iOS 6 use vector graphics (the same format as Nokia, and as Google’s Maps on Android).

The key difference between raster and vector graphics is that raster graphics are a fixed-frame set — essentially, a picture - whereas vector graphics are files where the images they encode can be scaled up or down without requiring any extra dataThere is a cost in terms of CPU to using vector graphics — but the big advantage is that you don’t have to download any extra data once you have the tile.


That was certainly my experience earlier this week in Korea, where on a visit to Samsung I had an iPhone running iOS 6 which had no data contractOne evening I looked at the overview of North and South Korea (it turns out Apple’s Maps offer more detail than Google does for North Korea; the latter’s is just a white blank). The next day, with zero data coverage, we were taken on a coach trip to a Samsung production facility.

The phone tracked our entire journey, with street-level data including the names of shops, all the wayAnd all the way back. And then, later, out to the airportAll that, without getting a single extra drop of data.

优越的缓存和数据大小利用矢量地图在我看来更有可能的解释比Snappli地图数据消费下降的结论,只有4%的iOS 6用户使用应用程序。

更新: 从拥有有趣的帖子(竞争对手Snappli):

Our data experts performed an identical series of activities on Google Maps and Apple Maps that included searching for several US cities, addresses and airports and zooming in and out to locate specific locationsOn Google Maps, the average data loaded from the cellular network for each step was 1.3MBApple Maps came in at 271KB — that’s approximately 80% less data! On some actions, such as zooming in to see a particular intersection, Apple Maps’ efficiency advantage edged close to 7X.

Apple Maps’ overwhelming data advantage in Standard Map views is because of Apple’s use of vector graphicsInstead of downloading map tile images every time users zoom in or out of a map view, Apple’s vector graphics approach resizes dynamically, resulting in the drastically reduced data usage we observed, as well as smooth resizing and fast responsiveness.