No, the don't pay the upgrade. In fact, it is an interesting way to launch your app: a small price at the beginning, as a special promotion, and then increase it if you made significant improvements.
Google "iphone app pricing strategies" for info on how other apps did in the store.
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不，不支付升级费用。 事实上，这是一种有趣的启动应用程序的方式：一开始价格很小，作为特别促销，如果你做出了重大改进，然后增加价格。
谷歌“iPhone应用程序定价策略”，了解其他应用程序在商店中的表现。
No, the don't pay the upgrade. In fact, it is an interesting way to launch your app: a small price at the beginning, as a special promotion, and then increase it if you made significant improvements.
Google "iphone app pricing strategies" for info on how other apps did in the store.
不，这是鼓励潜在用户尽快购买的一种方式。
No, that's a way to encourage your potential users to buy it ASAP.