Apps by Beijing four time ledo Technology Co., Ltd.
calculator HD⁻ app icon

Utilities

calculator HD⁻

Beijing four time ledo Technology Co., Ltd.

Free download 4.47 · 1 storefront · 2,500 ratings In-app purchases
Open on Apple

About this app

This app uses the basic functions of the calculator to make the simplest, best calculator in the app store. And it can record the operation process completely, and can check and edit at any time. Designed with simplicity, usability and beauty in mind! Elegant & Intuitive interface Displays both the equation & the result at the same time Supports many scientific functions Multiple themes Application subscription: 1. Subscription Service: Quarterly Member (3 months) 2. Subscription price: ¥18 / quarter for consecutive quarterly membership 3. Payment: After the user confirms the purchase and the payment is credited to the iTunes account 4. Apple iTunes account will deduct the fee within 24 hours before the expiration, and the subscription cycle will be extended by one after the successful deduction 5. During the subscription period, you can use all key sounds to calculate data 6. The subscription will be automatically renewed for the same price and period (one year) as before, unless the automatic renewal is closed at least 24 hours in advance before the end of the current subscription period 7. After purchase, users can manage subscription and turn off automatic renewal in account Settings. For more information please go to: http://support.apple.com/kb/ht4098" Please refer to the following links for terms of Service and Privacy policy: Privacy policy: https://cdn.40sishi.com/app/resources/jisuanqihd/privacy.html Service agreement: https://cdn.40sishi.com/app/resources/jisuanqihd/vipservice.html The price is equal to the price of a subscription in DOLLAR terms specified in Apple's App Store Pricing Table.

Latest release

What’s New

Version 2.1.3 Jun 17, 2026

一些UI适配 bug fix

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
2,500 ratings
2,500 Sep 13, 2026 · 2,500 ratings Sep 13, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free 0×
Price history
Current Free
Free Sep 13, 2026 · Free Sep 13, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Sep 13, 2026 · 12:09 PM Free

Screenshots

calculator HD⁻ iPhone screenshotcalculator HD⁻ iPhone screenshotcalculator HD⁻ iPhone screenshot calculator HD⁻ iPad screenshotcalculator HD⁻ iPad screenshot