Calo: Scientific Calculator

Calo: Scientific Calculator

Unit Converter & Math Notes

22 ratings
20 reviews
Free

Price history


Details

Released
September 12, 2024
Updated
November 6, 2026

Features

Calo: Scientific Calculator screenshot #1 for iPhone
Calo: Scientific Calculator screenshot #2 for iPhone
Calo: Scientific Calculator screenshot #3 for iPhone
Calo: Scientific Calculator screenshot #4 for iPhone
Calo: Scientific Calculator screenshot #5 for iPhone
iphone
ipad
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About

This app offers a high-precision calculator with scientific functions and unit conversion. It allows users to save and search calculation history, add notes, and export results. Customize themes and sync across devices for a personalized experience.

✓High-precision calculation engine
✓Scientific mode with advanced functions
✓Unit converter
✓Searchable calculation history
✓Save and reuse expressions
✓Export results (CSV, image)
✓Home Screen and Lock Screen widgets
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What's New in Calo

3.4

November 6, 2026

1. The toolbox is now a home page selector: converter, programmer, formula, notepad and high-precision calculator can each be set as your launch page 2. Expressions now show thousands separators — applied in the input field, history and tape, leaving decimals and scientific notation untouched 3. Re-recorded all pronunciation voices with tighter pacing, plus a new "zero zero" reading for the 00 key 4. Refreshed the app icon with dark, light and tinted variants 5. The high-precision calculator is now available in 8 more languages 6. Fixed an issue in the notepad where the cursor, text selection and copy/paste menu could stop working

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User reviews

非常给力的开发

能够及时听取用户的反馈,新迭代快速高效

加油

非常不错 没有广告

语音功能

1、计算结果不能听到真人语音
2、“00”按键不能听到真人语音
如果加上这个就完美啦

Response from developer

感谢 5 星好评反馈,最新版本计算结果已经加入真人语音,00 按键的语音下一个版本加入下。

Best calculator ever

Intuitive, elegant, and beautiful.

完美的计算器

功能强大,体积小巧,启动迅速还免费~多谢开发者

Developer apps

FAQ

What is Calo's rating and how many reviews does it have?

Calo has an excellent rating of 4.7 stars based on 22 user reviews. This indicates a generally positive user sentiment towards the application.

Is Calo free to download and use?

Yes, Calo is completely free to download and use. The app does not require any payment to access its core features.

Does Calo have ads?

No, Calo is ad-free. Users can enjoy an uninterrupted calculation experience without any advertisements.

What devices does Calo support?

Calo is available for both iPhone and iPad, offering a seamless experience across Apple's mobile platforms.

How often is Calo updated?

The latest version of Calo is 3.4, and it was last updated on November 6, 2026. This suggests a history of regular updates and ongoing development.

What are the advanced calculation features in Calo?

Calo supports powers, roots, logarithms, trigonometry, and factorials. It also allows switching between degrees and radians for trigonometric functions.

Can I save my calculations in Calo?

Yes, Calo allows you to save expressions you use often for quick insertion. You can also search your calculation history and reuse earlier expressions.

What is the age rating for Calo?

Calo has an age rating of 4+, making it suitable for a wide range of users, including younger individuals.