---
title: "▸ Calculator + - Reviews, Revenue and Downloads in Vietnam | Apple App Store"
description: "+ Award Winning Calculator Since 2007 + THE BEST IN THE CLASS   HiCalc - Calculator Pro is an ultimate calculator and will make all your calculations become simpler than ever with 12 calculators: Basi"
---

# ▸ Calculator + — Vietnam
> Scientific Calculator

![▸ Calculator + App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/64/43/9d/64439dd7-f497-3b18-09af-849c9e7edf78/AppIcon-0-1x_U007emarketing-0-0-85-220-10.png/434x0w.png)

**Developer:** [PPCLINK Software](https://apptail.io/developer/ppclink-software-aAd) (Vietnam)
**Category:** Utilities
**Rating:** 4.7/5 (39 ratings)
**Price:** Free
**Bundle ID:** com.vietlotus.hicalcpro
**Store:** Apple App Store
**Country:** Vietnam
**Version:** 5.3 (released 2019-09-24)
**Original Release:** 2011-10-24
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/vn/app/app/id473884845)
**AppTail Page:** [https://apptail.io/app/calculator-EqLc/vietnam](https://apptail.io/app/calculator-EqLc/vietnam)

## ▸ Calculator + Description
+ Award Winning Calculator Since 2007
+ THE BEST IN THE CLASS 

HiCalc - Calculator Pro is an ultimate calculator and will make all your calculations become simpler than ever with 12 calculators: Basic, Scientific, Currency Converter, Unit Converter, Finance, Date - Time, Constants, Equation Solver, Statistics, Base conversion, Graph & Tip calculator.

► Noteworthy
• Three calculating modes: STANDARD, STRING and RPN
• Precision to 31 digits
• BIG CALC in Portrait mode.
• Comprehensive Date & Time calculator
• Unit Converter contains 3,300 units in 113 categories
• Currency converter with daily online update for 152 currencies
• Extended Memory and Expression History supports 
• Intuitive interface
• Export & send out expressions/history

► Features:
• Multi-line LED with smart input for entering complicated expressions
• Show expression as normal writing mode @ very useful for students
• Advanced RPN mode with Stack viewer and functions: DROP, SWAP, ROLL, DEPTH, PICK, OVER, KEEP, LAST, CLEAR
• Sending data from Ext-Memory & History list
• Support 5 languages (English, French, German, Chinese & Vietnamese)

► Scientific calculator: 
• Basic fx: sin, cos, tan, sin-1, cos-1, tan-1, sinh, cosh, tanh, log, ln, sinh-1, cosh-1, tanh-1 …
• Advanced fx: Random, nPr, nCr, Differential function, Evaluation function, Integration function, Root-Finder and Product function, Greatest Common Divisor, Least Common Multiple, Fibonacci function …
• Complex numbers in STRING mode

► Unit Converter: a powerful and easy-to-use tool for converting over 3,300 units in 113 categories.
• Special categories: Women and Girl's Clothing, Cooking, Electric Field, Density Traditional, Typography, UHF channel and frequency chart, Fuel Consumption …
• Full text search for categories and units
• Favorite & Recently used units
• Update over the air

► Statistics calculator
• 15 common functions:  Σ(x), mean of X, AVD, SSD, SDV, C(n, k), Min, Max, GM...
• 6 probability distribution functions: Binomial, Gamma, Gaussian, Geometric, Poisson, Rayleigh
• Smart data input: data import from clipboard supported

► Graphing Calculator
• Up to three graphs
• Coordinate system movable
• Zoom in/out

► Equation solver
• Polynomial Equations (1st-4th)
• N-simultaneous equations

► Base conversion
• Full-featured base conversion

► Date & Time calculator
• Date / Time difference:  calculate duration between two dates.
• Add/ Subtract: Add or subtract days, months and years of a given date to get a new date.
• Events Countdown/up: Shows Time Remaining and Elapsed Time

► World Clock
• Show date & time of any city in the World
• Have 6 cool skins

► Finance calculator 
• Time Value of Money (NPER, RATE, PV, FV, PMT)
• Mortgage & Loan Calculator
• Finance functions: SLN, SYD, DB, NPV, IRR, NPER, RATE, PV, FV, PMT.

► Constants Library:
• 1500 constants from Mathematics, Physics, Solar System and Element e.g: Avogadro number, Gravitational const, Stefan-Boltzmann Const, Speed of Light.

## ▸ Calculator + Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple71/v4/08/ba/b0/08bab002-3bd7-53ef-aafa-286984b15498/mzl.hvpoffgb.jpg/640x960.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple62/v4/be/c8/59/bec8595b-fccf-d275-148e-e01e51c8ec78/mzl.qnzfxpsb.jpg/640x960.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple62/v4/35/34/a8/3534a830-88e0-baca-c8fa-b37f67c86e3c/mzl.zipssefv.jpg/640x960.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple62/v4/f4/9d/ba/f49dbaf0-6613-f0b9-f19c-4abe50f0a6f8/mzl.qwqtsfyd.jpg/640x960.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple71/v4/47/20/1f/47201f1f-ecdf-6074-1ecd-5b268beba304/mzl.gukwheyp.jpg/960x640.png)

## ▸ Calculator + Rating Breakdown in Vietnam
- 5 stars: 32 (82%)
- 4 stars: 5 (13%)
- 3 stars: 1 (3%)
- 2 stars: 0 (0%)
- 1 stars: 1 (3%)

## ▸ Calculator + Reviews in Vietnam

### ****- "Được!"
Nhiều tiện ích! Nhưng màu sắc ứng dụng tái quá! Không đẹp bằng phiên free.
-- Tuatuatuatuatuatuatuatua, 2021-08-21

### ***** "Đã dùng tốt trên iOS 13"
Sau khi update đã chạy tốt và ổn định trên ios13. Cảm ơn PPCLink rất nhiều!
-- DzungNguyenDuc259, 2019-09-25

### *---- "Plz update for IOS 13"
Lên ios 13, lỗi toàn tập :(
-- Nguyễn Duy 2280, 2019-09-21

### ***-- "Not working on IOS 10.0.2"
Since I have updated to Ios 10.0.2, this app didn't work anymore. Please fix soon!
-- tuan1289, 2016-09-25

### ***** "Useful, very good"
It's better if support voice over
-- Gianguk, 2014-09-15

### ***** "Đánh giá xếp hạng ứng dụng : Hay !"
Ngày 2-9-2014: Giảm giá O$ !
 - Dùng thử thấy đầy đủ chức năng cơ bản cần thiết của máy tính cho Học Sinh - Sinh Viên như mình !
-- XuanHoaDesigner, 2014-09-02

### ***-- "Qua chuan"
Tot
-- Liptn, 2013-07-11

### ***** "Good"
Good
-- Dyn. Phan, 2012-06-04

### ****- "Ứng dụng hay"
Tôi thấy cái này hay nhưng chưa biết sử dụng hết. Có hướng dẫn đầy đủ bằng tiếng việt thì hay
-- Quang_c4, 2012-04-19

### ***** "Ứng dụng hữu ích."
Mình rate 5 sao ngay vì ứng dụng quá hay, thiết thực!
-- ThànhHoàng, 2011-11-01

[View all ▸ Calculator + reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)

## ▸ Calculator + In-App Purchases
| Item | Price |
|------|-------|
| Formula Toolkit | 29.00 đ |
| Biorhythm | 29.00 đ |
| Periodic Table | 29.00 đ |
| UI Upgrade | 29.00 đ |

## ▸ Calculator + Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Thailand | Utilities | #65 |
| Top Paid | Vietnam | Utilities | #68 |
| Top Paid | Greece | Utilities | #70 |
| Top Paid | Colombia | Utilities | #71 |
| Top Paid | Kuwait | Utilities | #73 |
| Top Paid | Egypt | Utilities | #78 |
| Top Paid | Chile | Utilities | #89 |
| Top Paid | Hong Kong SAR China | Utilities | #90 |
| Top Paid | Saudi Arabia | Utilities | #96 |
| Top Paid | Ecuador | Utilities | #98 |
| Top Paid | Mexico | Utilities | #102 |
| Top Paid | Singapore | Utilities | #102 |
| Top Paid | Peru | Utilities | #104 |
| Top Paid | Lebanon | Utilities | #109 |
| Top Paid | Portugal | Utilities | #113 |
| Top Paid | Argentina | Utilities | #118 |
| Top Paid | Russia | Utilities | #120 |
| Top Paid | United Arab Emirates | Utilities | #122 |
| Top Paid | Taiwan | Utilities | #125 |
| Top Paid | Poland | Utilities | #126 |
| Top Paid | South Korea | Utilities | #137 |
| Top Paid | Austria | Utilities | #140 |
| Top Paid | Belarus | Utilities | #144 |
| Top Paid | France | Utilities | #149 |
| Top Paid | Spain | Utilities | #150 |
| Top Paid | Sweden | Utilities | #153 |
| Top Paid | Italy | Utilities | #154 |
| Top Paid | Czechia | Utilities | #160 |
| Top Paid | Belgium | Utilities | #166 |
| Top Paid | Dominican Republic | Utilities | #187 |
| Top Paid | Brazil | Utilities | #190 |
| Top Paid | Kazakhstan | Utilities | #191 |
| Top Paid | Switzerland | Utilities | #191 |
| Top Paid | Israel | Utilities | #193 |
| Top Paid | Indonesia | Utilities | #205 |
| Top Paid | Hungary | Utilities | #207 |
| Top Paid | Malaysia | Utilities | #220 |
| Top Paid | India | Utilities | #229 |
| Top Paid | Romania | Utilities | #234 |
| Top Paid | Philippines | Utilities | #249 |
| Top Paid | Nigeria | Utilities | #270 |
| Top Paid | Pakistan | Utilities | #279 |
| Top Paid | Canada | Utilities | #294 |
| Top Paid | Denmark | Utilities | #300 |
| Top Paid | Germany | Utilities | #303 |
| Top Paid | Ukraine | Utilities | #306 |
| Top Paid | Japan | Utilities | #307 |
| Top Paid | Azerbaijan | Utilities | #312 |
| Top Paid | New Zealand | Utilities | #317 |
| Top Paid | Türkiye | Utilities | #321 |
| Top Paid | Netherlands | Utilities | #325 |
| Top Paid | Australia | Utilities | #341 |
| Top Paid | United Kingdom | Utilities | #350 |
| Top Paid | Greece | Overall | #354 |
| Top Paid | Ireland | Utilities | #418 |
| Top Paid | Vietnam | Overall | #427 |
| Top Paid | China | Utilities | #430 |
| Top Paid | Finland | Utilities | #434 |
| Top Paid | Egypt | Overall | #445 |
| Top Paid | South Africa | Utilities | #462 |

## ▸ Calculator + Discovered Keywords
- calculator

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## ▸ Calculator + Available In
- [United States](https://apptail.io/app/calculator-EqLc/united-states)
- [Germany](https://apptail.io/app/calculator-EqLc/germany)
- [China](https://apptail.io/app/calculator-EqLc/china)
- [Taiwan](https://apptail.io/app/calculator-EqLc/taiwan)
- [France](https://apptail.io/app/calculator-EqLc/france)
- [Italy](https://apptail.io/app/calculator-EqLc/italy)
- [Hong Kong SAR China](https://apptail.io/app/calculator-EqLc/hong-kong)
- [Thailand](https://apptail.io/app/calculator-EqLc/thailand)
- [Canada](https://apptail.io/app/calculator-EqLc/canada)
- [Japan](https://apptail.io/app/calculator-EqLc/japan)
- [Russia](https://apptail.io/app/calculator-EqLc/russia)
- [United Kingdom](https://apptail.io/app/calculator-EqLc/united-kingdom)
- [South Korea](https://apptail.io/app/calculator-EqLc/south-korea)
- [Mexico](https://apptail.io/app/calculator-EqLc/mexico)
- [Saudi Arabia](https://apptail.io/app/calculator-EqLc/saudi-arabia)
- [Spain](https://apptail.io/app/calculator-EqLc/spain)
- [Switzerland](https://apptail.io/app/calculator-EqLc/switzerland)
- [Brazil](https://apptail.io/app/calculator-EqLc/brazil)
- [Austria](https://apptail.io/app/calculator-EqLc/austria)
- [Vietnam](https://apptail.io/app/calculator-EqLc/vietnam)
- [Belgium](https://apptail.io/app/calculator-EqLc/belgium)
- [Australia](https://apptail.io/app/calculator-EqLc/australia)
- [Sweden](https://apptail.io/app/calculator-EqLc/sweden)
- [Colombia](https://apptail.io/app/calculator-EqLc/colombia)
- [Greece](https://apptail.io/app/calculator-EqLc/greece)
- [Singapore](https://apptail.io/app/calculator-EqLc/singapore)
- [Poland](https://apptail.io/app/calculator-EqLc/poland)
- [Netherlands](https://apptail.io/app/calculator-EqLc/netherlands)
- [Portugal](https://apptail.io/app/calculator-EqLc/portugal)
- [United Arab Emirates](https://apptail.io/app/calculator-EqLc/united-arab-emirates)
- [Türkiye](https://apptail.io/app/calculator-EqLc/turkey)
- [India](https://apptail.io/app/calculator-EqLc/india)
- [Malaysia](https://apptail.io/app/calculator-EqLc/malaysia)
- [Chile](https://apptail.io/app/calculator-EqLc/chile)
- [Argentina](https://apptail.io/app/calculator-EqLc/argentina)
- [Kuwait](https://apptail.io/app/calculator-EqLc/kuwait)
- [Ukraine](https://apptail.io/app/calculator-EqLc/ukraine)
- [Macao SAR China](https://apptail.io/app/calculator-EqLc/macau)
- [Egypt](https://apptail.io/app/calculator-EqLc/egypt)
- [Israel](https://apptail.io/app/calculator-EqLc/israel)
- [Denmark](https://apptail.io/app/calculator-EqLc/denmark)
- [Czechia](https://apptail.io/app/calculator-EqLc/czechia)
- [New Zealand](https://apptail.io/app/calculator-EqLc/new-zealand)
- [Philippines](https://apptail.io/app/calculator-EqLc/philippines)
- [Romania](https://apptail.io/app/calculator-EqLc/romania)
- [Indonesia](https://apptail.io/app/calculator-EqLc/indonesia)
- [Hungary](https://apptail.io/app/calculator-EqLc/hungary)
- [Slovakia](https://apptail.io/app/calculator-EqLc/slovakia)
- [Ireland](https://apptail.io/app/calculator-EqLc/ireland)
- [Ecuador](https://apptail.io/app/calculator-EqLc/ecuador)
- [Norway](https://apptail.io/app/calculator-EqLc/norway)
- [South Africa](https://apptail.io/app/calculator-EqLc/south-africa)
- [Belarus](https://apptail.io/app/calculator-EqLc/belarus)
- [Lebanon](https://apptail.io/app/calculator-EqLc/lebanon)
- [Finland](https://apptail.io/app/calculator-EqLc/finland)
- [Slovenia](https://apptail.io/app/calculator-EqLc/slovenia)
- [Peru](https://apptail.io/app/calculator-EqLc/peru)
- [Luxembourg](https://apptail.io/app/calculator-EqLc/luxembourg)
- [Latvia](https://apptail.io/app/calculator-EqLc/latvia)
- [Bulgaria](https://apptail.io/app/calculator-EqLc/bulgaria)
- [Croatia](https://apptail.io/app/calculator-EqLc/croatia)
- [Armenia](https://apptail.io/app/calculator-EqLc/armenia)
- [Lithuania](https://apptail.io/app/calculator-EqLc/lithuania)
- [Sri Lanka](https://apptail.io/app/calculator-EqLc/sri-lanka)
- [Kazakhstan](https://apptail.io/app/calculator-EqLc/kazakhstan)
- [Ghana](https://apptail.io/app/calculator-EqLc/ghana)
- [Estonia](https://apptail.io/app/calculator-EqLc/estonia)
- [Cyprus](https://apptail.io/app/calculator-EqLc/cyprus)
- [Bahrain](https://apptail.io/app/calculator-EqLc/bahrain)
- [Madagascar](https://apptail.io/app/calculator-EqLc/madagascar)
- [North Macedonia](https://apptail.io/app/calculator-EqLc/north-macedonia)
- [Nigeria](https://apptail.io/app/calculator-EqLc/nigeria)
- [Algeria](https://apptail.io/app/calculator-EqLc/algeria)
- [Dominican Republic](https://apptail.io/app/calculator-EqLc/dominican-republic)
- [Pakistan](https://apptail.io/app/calculator-EqLc/pakistan)
- [Azerbaijan](https://apptail.io/app/calculator-EqLc/azerbaijan)
- [Brunei](https://apptail.io/app/calculator-EqLc/brunei)
- [Iceland](https://apptail.io/app/calculator-EqLc/iceland)
- [Nepal](https://apptail.io/app/calculator-EqLc/nepal)
- [Malta](https://apptail.io/app/calculator-EqLc/malta)

---

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