# Calculator365: All-In-One Calc — Scientific, Fraction & Unit > All-in-one calculator with scientific, unit, financial, and health tools. (iPhone/iPad app by 晖明 甘.) - Source: https://appshunter.io/ios/app/calculator365-all-in-one-calc/id6448260851 (this page in markdown: same URL + `.md`) - Developer: [晖明 甘](https://appshunter.io/developer/1684180474) - Category: Utilities, Finance - Price: Free with in-app purchases - Rating: 4.75/5 from 83 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 14.0 · 28 MB - Languages: English, French, German, Indonesian, Italian, Japanese, Korean, Malay, Portuguese, Russian and 5 more - Released: 2023-04-26 - Data updated: 2026-06-24 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/calculator365-all-in-one-calc/id6448260851/reviews.md ## What is Calculator365? All-in-one Calculator with voice, history for the iPhone and iPad. ◉ Advanced & Smart Calculator+ ▸ Basic Calculator (+, -, x, ÷, %, (), ...) ▸ Scientific Calculator (e, pi, π, x!, ^, √, Ln, log, trig, …) ▸ Editable Input (Tap to modify, backspace & update results instantly) ▸ Calculator Widget (for iOS 17.0+) ▸ Calculator Keyboard ◉ Unit Converter ▸ Supports length, area, volume, speed, pressure, power, weight, temperature, energy, time, angle, density, force, torque, and the data capacity. ◉ Currency Converter ▸ Calculate currency exchange rate conversions, including dollar, euro, yen, yuan, etc. ◉ Fraction Calculator ▸ Quickly calculate fraction addition, subtraction, multiplication, and division. convert between fractions and decimals. ▸ Get detailed, step-by-step solutions for every calculation. ◉ Percentage Calculator ▸ Easily calculate the percentage increase or decrease between numbers. ▸ Calculate what percentage one number is of another. ◉ Loan Calculator ▸ Calculate total interest, total payment based on loan principal and interest rate. ▸ Calculate monthly payments after early repayment or interest rate changes. ◉ Investment & Compound Interest Calculator ▸ Calculate Future Value based on principal, periodic contributions, and compounding frequency. ▸ Goal Seeking: Planning for $1M? Reverse calculate the required ROI or Years to reach your financial target. ◉ Date & Time Calculator ▸ Calculate the exact duration between dates with precision—down to the month, week, day, hour, minute, and second. ◉ BMI Calculator ▸ Measure the body mass index (BMI), the basal metabolic rate (BMR), and body fat percentage (BFP). ▸ Save the result to track your health changes over time. ◉ Ovulation Calculator • Calculates the time of ovulation and fertility using the menstrual cycle. ◉ Salary Calculator ▸ Convert salary amounts to their corresponding values based on payment frequency. ◉ Savings Calculator ▸ Enter initial deposit, interest rate & term to calculate total interest and final balance. ◉ Income Tax Calculator ▸ Enter pre-tax salary, deductions to calculate your take-home pay, taxes, and social contributions. ◉ Numbers to words ▸ Convert numbers to words for writing checks and legal documents. ◉ Hex Converter ▸ Convert seamlessly between binary, octal, decimal, and hex bases. ◉ OTHER FEATURES ▸ Keyboard vibration & Sound. ▸ Thousands separator. ▸ Multiple skin themes. ▸ Support Multitasking (iPad). More features are being developed~ Please Come to download, just enjoy it ^_^ VIP Membership: Payment: After the user confirms the purchase, the payment will be deducted from the iTunes account. Subscription: iTunes account will be automatically charged within 24 hours before the expiration date, and the subscription period will be extended accordingly after successful payment. To cancel the renewal, please manually disable the auto-renewal feature in iTunes/Apple ID settings at least 24 hours before the current subscription expires. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Disclaimer: The developer provides this application without any warranties regarding the accuracy, reliability, or suitability of its calculations or information. The developer is not liable for any direct or indirect damages resulting from the use of this application's calculations or information. ## Key features - Scientific, basic, and fraction calculators - Unit and currency converters - Financial and loan calculators - Health and date/time calculators - Editable input and calculation history - Calculator widget and keyboard ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Calculator PRO - 1 Year | $4.99 | per year | | Calculator PRO - 1 Month | $0.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Calculator PRO - Forever | $7.99 | one-time | ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/calculator365-all-in-one-calc/id6448260851/reviews.md ### 5/5 — Speed ​​Matters *2025-03-25* The response speed is delayed, I hope the new version can be improved ### 5/5 — Great calculator, I love it *2024-01-12* It works really well, allowing you to save your calculation history. Later you can note, copy, redo and modify these records. it laso has some other features that I haven't tried yet but look great. **Developer response:** Thank you very much for your support, Enjoy every day! ### 5/5 — 程序真的很轻量，1秒钟下载速度完成👍🏽 *2023-05-03* 目前支持四则运算和括号，基本也满足日常需求，期待早点出科学计算器的能力～ **Developer response:** Thank you for your support and feedback. We have now added the scientific calculator feature, and there are even more practical functionalities available, such as currency conversion and unit conversion. ## Frequently asked questions about Calculator365 ### What types of calculators does Calculator365 offer? Calculator365 provides a wide array of calculators including basic, scientific, fraction, percentage, loan, investment, date & time, BMI, ovulation, salary, savings, income tax, hex, and numbers to words converters. ### Can I edit previous calculations in Calculator365? Yes, Calculator365 features editable input, allowing you to tap to modify previous entries and instantly update results. This makes correcting errors or exploring different scenarios very convenient. ### Does Calculator365 have a widget or keyboard? Yes, Calculator365 offers a calculator widget for iOS 17.0+ and a dedicated calculator keyboard, providing quick access to its functions directly from your home screen or while typing. ### What are the subscription options for Calculator365? Calculator365 offers a VIP Membership with two subscription plans: a 1-month plan for $0.99 with a 3-day free trial, and a 1-year plan for $4.99 with a 7-day free trial. Auto-renewal can be managed in iTunes/Apple ID settings. ### Does Calculator365 have ads? Yes, Calculator365 contains advertisements. While the app is free to download and use, ads are present to support its development and maintenance. ### What devices is Calculator365 compatible with? Calculator365 is designed for iPhone, iPad, and iPod. It also supports multitasking features on iPad. ### How often is Calculator365 updated? The latest version of Calculator365 is 1.4.0, last updated on March 20, 2026. More features are continuously being developed and added to the app. ### What is the age rating for Calculator365? Calculator365 has an age rating of 4+, making it suitable for a wide range of users, including children, for basic to advanced calculation needs. ## Version history (last 5 releases) ### 1.4.2 — 2026-06-23 Minor bug fixes and refinements. ### 1.4.1 — 2026-04-28 Minor bug fixes and refinements. ### 1.4.0 — 2026-03-20 1. New Feature: Salary Calculator. 2. A few quality-of-life (QoL) improvements and bug fixes. ### 1.3.3 — 2026-02-24 A few quality-of-life (QoL) improvements and bug fixes. ### 1.3.2 — 2026-02-10 User experience improvements and bug fixes. ## Apps similar to Calculator365 | App | Rating | Price | Category | | --- | --- | --- | --- | | [Calculator +](https://appshunter.io/ios/app/calculator-plus/id351815470) | 4.6 (9,595) | Free | Utilities | | [Calculator₊](https://appshunter.io/ios/app/calculator/id398129933) | 4.7 (1,721,607) | Free | Utilities | | [Calculator 17 - Math Solver](https://appshunter.io/ios/app/calculator-17-math-solver/id6452015902) | 4.6 (908) | Free | Utilities | | [Xmart Calculator Pro](https://appshunter.io/ios/app/xmart-calculator-pro/id827740598) | 4.4 (152) | $5.99 | Utilities | | [Basic Calculator: Classic Calc](https://appshunter.io/ios/app/basic-calculator-classic-calc/id430271248) | 4.8 (3,100) | Free | Utilities | | [Haseba Calculator](https://appshunter.io/ios/app/haseba-calculator/id1121281655) | 4.6 (3,795) | Free | Utilities | ## More apps by 晖明 甘 - [LoanCalc-Financial Calculators](https://appshunter.io/ios/app/loancalc-financial-calculators/id6450578717) - [PassVault: Password Keeper](https://appshunter.io/ios/app/passvault-password-keeper/id6450984033) - [Smart Calculator Pro](https://appshunter.io/ios/app/smart-calculator-pro/id6469614398) - [心愿岛-电子在线许愿还愿助手神器](https://appshunter.io/ios/app/id6550920829) All apps by 晖明 甘: https://appshunter.io/developer/1684180474 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-24.*