Research answer
What AppTrendKit can say about Calculator # - 科学计算器 today
Calculator # - 科学计算器 has no estimate-backed download or gross-consumer-spend figure that meets the public evidence contract yet.
Observed App Store metadata, chart positions, and history are shown below. Missing, non-finite, undefined-currency, or undefined-metric evidence stays missing rather than becoming zero.
Performance
Downloads, revenue and chart history
Estimates for the last 7D. Chart positions come from the App Store; downloads and revenue are AppTrendKit estimates, shown as a size band (for example 10K–50K) with a confidence level.
Estimated downloads · 7D
UnavailableNo estimate yet
We only show an estimate once we have enough data. Missing numbers are never shown as zero.
Estimated App Store gross consumer spend · 7D
UnavailableNo estimate yet
We only show an estimate once we have enough data. Missing numbers are never shown as zero.
History
Collected daily performance
No daily history yet.
Rank history
Chart positions
Lower rank is better. Only collected observations are shown.
Coverage note
What the ranks mean
A missing rank is not treated as zero downloads or zero revenue. Apple chart feeds are bounded and may return censored or not-ranked observations outside the visible chart depth.
Read the methodApp Store search
Keywords Calculator # - 科学计算器 ranks for
Observed positions in Apple's US search results, best first. Popularity is a 0–100 index, not a search count.
| Keyword | Position | Change | Popularity | Difficulty |
|---|---|---|---|---|
| calculator | #14 | new | 84 | 75 |
Storefront mix
Top countries by estimated contribution · 7D
Country figures cover the days we collected in each country, so they don't add up to the worldwide estimate. Each country shows when it was last updated.
Monetization
How the app makes money
These are listing and product observations. They are not company revenue, subscriber counts, or advertising revenue.
App details
Store metadata
- Version
- 7.1
- Released
- Aug 31, 2011
- Last updated
- Mar 12, 2026
- Content rating
- 4+
- Default storefront
- CN
Public IAP observations
Validated in-app purchase prices
Only persisted rows with an explicit public publication boundary are shown. Missing price, currency, country, or date values stay unknown.
Listing detail
What the store says
◉ 全球下载超过11,000,000次 ◉ 美国、英国、澳大利亚、加拿大、德国等国最好的免费实用应用 ◉ 在ILoveFreeSoftware.com获得评分和评价 Graphing TI-83、TI-84、TI-89、卡西欧FX(Casio)、夏普Sharp EL等计算器的免费替代之选 Calculator # – 专门针对iPhone/iPad推出的免费、简洁、多功能计算器，现隆重推出能满足各类用户需求的多种功能：无论您是基本计算用户，还是高级用户，如科学计算用户、程序员、工程师和数学专业学生等，本应用配备强大的数学核心和代数引擎，支持数学演示，是所有用户的理想工具。Calculator #提供您需要的一切功能，包括用户手册和教学视频剪辑，几分钟就可轻松掌握使用方法！ ◉ 官网：http://iPhoneCalculator.com ◉ 高级功能： ▸ 数学图片解答器 ▸ 手写识别 ▸ AI 数学问题解决器 (*) 需要APP内购买 ◉ 一般特色： ▸ 通用计算应用 ▸ 支持所有最新设备 ¹ ▸ 支持在iPad上分屏运行 ▸ 支持无线键盘 ² ▸ 数学显示 ▸ 编辑&导出表达式/结果 ▸ 历史记录查看 ▸ 基本运算 (+, -, x, ÷, %, Abs,...) ▸ 高级函数 (Sin,Cos,Ln,X!, ^, √,…) ▸ 14个内存变量(Including X,Y,Z,M) ▸ 赋值运算 ▸ F(x)自定义函数 (F1) ▸ 分数和度/角度计算 ▸ 数值积分计算 ▸ 双色皮肤（银光 & 碳黑+) ◉ 代数特色功能： ▸ 大整数&有理数（可达到30!） ▸ 展开&因式分解多项式 ▸ 基本不定积分 ◉ 方程解答器： ▸ 元二次方程 ▸ 线性方程组(2未知数) ◉ 二维图表： ▸ 捕捉到点 ▸ 平滑缩放&转换 ▸ 支持 F(X,Y) = 0。示例：Sin(X) + Cos(Y) = 0。 ◉ 多语言: ▸ 英语, 西班牙语, 德语 ▸ 法语, 日语, 中文 (*) 需要APP内购买 ¹: 包括iPhone 6/6S+ 的高清视网膜显示屏 ²: 标准英语键盘 我们欢迎你的反馈，非常感谢！ 服务条款： https://iphonecalculator.com/terms-of-service/
Publisher websiteStore creative
Screenshots
Competitive set
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How we estimate
Where every number comes from
App details: Apple iTunes Search API, updated Sep 27, 2026, 10:37 PM.
Rankings: collected chart positions from the listed storefront. Missing ranks are not zeros.
Economics: downloads and gross store consumer spend are estimated, not official Apple or publisher figures.
Model: Lineage not exposed by this aggregate.
Confidence: —; intervals widen when evidence or history is limited.
Last updated: Sep 27, 2026, 10:37 PM.
See how AppTrendKit separates observations, estimates, coverage, and confidence.
Open methodology