# Calco 2

> A productive scientific calculator with an intuitive interface and advanced features. (iPhone/iPad app by Long LI.)

- Source: https://appshunter.io/ios/app/calco-2/id1317692699 (this page in markdown: same URL + `.md`)
- Developer: [Long LI](https://appshunter.io/developer/433868146)
- Category: Utilities, Education
- Price: Free
- Rating: 4.13/5 from 8 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 19 MB
- Languages: English, Japanese, Russian, Chinese, Spanish, Chinese
- Released: 2017-11-28
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/calco-2/id1317692699/reviews.md

## What is Calco 2?

Calco is a simple scientific calculator built for the sole purpose of amazing productivity.

Great efforts have been taken to rework and improve frequently-used features of a scientific calculator and perfected its interactions. It eliminated many frustrations you may encounter with typical calculator apps.

Features & Stuff
* Endless active ticker tape history
* Syntax highlighting & selection
* Automatic evaluation
* Quick precision & rounding setter
* Quick angle mode toggling
* Gestural swipe selection
* Themes
* Free & ad-free
* Possibly more to come

## Key features

- Endless ticker tape history
- Syntax highlighting
- Automatic evaluation
- Quick precision and rounding
- Quick angle mode toggling
- Gestural swipe selection
- Themes

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/calco-2/id1317692699/reviews.md

### 5/5 — Please upgrade

*2022-10-16, version 2.7.2*

Please upgrade to better support iso15 and iso16!
Thinks very much

### 3/5 — always crash

*2022-02-21, version 2.7.2*

Idk why

### 1/5 — Unit converter

*2020-05-16, version 2.7.1*

Hello.Need fraction like (—),integral,graph drawing,program,matrix
Thanks

### 5/5 — 超贊

*2018-07-19, version 2.5*

試了二十幾個計算器，還買了幾個收費的，普通使最便捷易用的一款，強推👍🏻👍🏻👍🏻

### 5/5 — Love this app

*2017-11-30, version 2.5*

The only thing I could add is it would be great to use 3D Touch to move the cursor over between numbers instead of sliding your thumb on the white bar.

## Frequently asked questions about Calco 2

### What makes Calco 2 a productivity-focused calculator?

Calco 2 aims for productivity by offering features like an endless ticker tape history, syntax highlighting for easier editing, and quick toggles for angle modes and precision settings, reducing common user frustrations.

### Does Calco 2 have ads?

No, Calco 2 is completely free and ad-free, providing an uninterrupted user experience.

### What devices does Calco 2 support?

Calco 2 is available for iPhone, iPad, and iPod touch devices.

### What is the age rating for Calco 2?

Calco 2 has an age rating of 4+, making it suitable for a wide range of users.

### How often is Calco 2 updated?

The latest version of Calco 2 was released on August 27, 2020. While updates may not be frequent, the app is stable and functional.

### What is the user sentiment for Calco 2?

Calco 2 is rated 4.1 stars from 8 ratings, indicating generally positive user sentiment.

### Can I customize the appearance of Calco 2?

Yes, Calco 2 offers themes, allowing you to customize its appearance to your preference.

### Does Calco 2 have offline functionality?

As a calculator app, Calco 2 is designed to function offline, allowing you to perform calculations without an internet connection.

## Version history (last 1 release)

### 2.7.2 — 2020-08-27

Fixed a minor bug.
Support Bluetooth number keyboard

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## More apps by Long LI

- [GBookmarks for Google User](https://appshunter.io/ios/app/gbookmarks-for-google-user/id975089152)

All apps by Long LI: https://appshunter.io/developer/433868146

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*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 2026-06-10.*