Users pay for what they use, as with electricity.

同电消费的模式一样，使用者支付他们消耗的量；

youdao

Is a phone's address book backed up free of charge, or do users pay a monthly fee?

地址簿备份是免费的吗？还是用户需要按月付费？

youdao

Moradian says a "small percentage" of active users pay $1.50 monthly for access to detailed grading data.

Moradian说，只有“少部分”活跃用户愿意每月付$1.5美元获得具体的评级数据。

youdao

Users pay a small amount for each transaction.

VOA: special.2009.11.02

It is healthier that users pay for their devices and operators invest in networks and services.

WSJ: IPhone's Crutch of Subsidies

One deterrent may be the seemingly small amount of money users pay for an app, said Schenkel.

FORBES: Is App Developer Consolidation on the Horizon?

Both make money either through ads or by letting users pay a monthly fee to go ad-free.

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