Ultra-practical scientific calculator ~ each calculation step is displayed, quickly return to the key steps, you can view the history, so that your calculation efficiency is fully upgraded~

Subscription:
1、Users can only have unlimited access to all functions of the scientific calculator, altitude measurement, English case conversion, etc. through a paid subscription;
2、Subscription fee will be deducted from iTunes account when user confirms the purchase, free trial for three days, can be automatically renewed, renewal fee $39.99/year;
3、Users can turn off the auto-renewal subscription 24 hours before the end of the current subscription, otherwise the subscription will be automatically renewed;
4、Auto-renewal of subscription Apple ID, will be automatically deducted from the iTunes account 24 hours before the expiration of each billing cycle and extend the corresponding validity period;
5、Users manage their subscription services, i.e., they can go to their user account settings to turn off automatic subscriptions after purchase.

User Agreement: https://vciacsoym7.feishu.cn/docx/TkD8dVeKRoahP2xpjsbcuOc4nQd
Privacy Policy: https://vciacsoym7.feishu.cn/docx/MnZSdR13Fop3ZBxZUVacWmLInah