Calculate-X 5.1

Smaller and faster than the default calculator, this application provides a user-friendly interface where you can easily access the complete calculation process. Additionally, you can insert notes for bookkeeping purposes. The system offers a variety of built-in skin styles that are visually appealing, and users have the option to customize the skin color to their liking. Customize your computing experience by setting prompt tones with the press of a button. The app also keeps a record of your historical calculations.

• Application Subscription:

1. Subscription service options include monthly membership (1 month), quarterly membership (3 months), and annual membership (12 months).
2. Subscription prices are as follows: monthly membership at 12 yuan per month, quarterly membership at 24 yuan per quarter, and annual membership at 78 yuan per year.
3. Payment is processed through the user's iTunes account after confirmation of purchase.
4. The Apple iTunes account will be debited within 24 hours before the expiration date, and successful deductions will extend the subscription for one cycle.
5. During the subscription period, users have access to all skins and can enjoy an ad-free experience.
6. Subscriptions will automatically renew unless cancelled at least 24 hours before the current cycle ends.
7. Post-purchase, users can manage subscriptions and disable auto-renewal in their account settings.

For further information, you can view our Terms of Service and Privacy Policy by visiting the following links:

• Privacy policy: Privacy Policy
• Service agreement: Service Agreement