1.普通计算：算式编辑，运算过程完整记录，方便查询运算过程
2.科学计算：三角函数、对数、指数以及角度弧度切换
3.汇率计算：汇率实时更新，支持170多种币种任意切换
4.单位换算：长度、面积、质量、体积、速度、温度、压力、功率等多种单位换算
5.丰富主题：支持深色模式，保护眼睛节省电池，更有8种个性化主题
6.小数位数：自选小数位数，根据所需提供更精确的计算
7.简洁高效：布局简洁，操作方便，运算高效
SUBSCRIPTION PRICING AND TERMS
Subscription options
In our game we have the following subscription length:
1. Weekly Advanced Features for $4.99 offers a weekly subscription after a 3-day free trial, unlocks all themes and exchange rates.
2. Yearly Advanced Features for $49.99 offers a yearly subscription, unlocks all themes and exchange rates.
End of trial and subscription renewal
This price is for United States customers. Pricing in other countries may vary, and actual charges may be converted to your local currency depending on the country of residence.
Your subscription will be charged to your iTunes Account at confirmation of purchase.
Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.
Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal.
Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase.
Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.
Canceling trial or subscription
You can turn off the auto-renew for the subscription whenever you want to through iTunes. Check https://support.apple.com/HT202039. When your current trial/subscription period expires, you will be unsubscribed. The current active subscription period can not be canceled. After your subscription expires, you will no longer be able to use sticker packs marked as Premium.
If you have any questions or comments, feel free to contact us at [email protected].
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