# Calculator & Solver - Calzyo — Basic & Scientific Calculator

> Basic & Scientific Calculator (iPhone/iPad app by Changsha Liangchao Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/calculator-and-solver-calzyo/id6799898954 (this page in markdown: same URL + `.md`)
- Developer: [Changsha Liangchao Technology Co., Ltd.](https://appshunter.io/developer/1767728236)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 20 MB
- Languages: American English, Dutch, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean, Malay and 11 more
- Released: 2026-09-06
- Data updated: 2026-09-19
- User reviews in markdown: https://appshunter.io/ios/app/calculator-and-solver-calzyo/id6799898954/reviews.md

## What is Calculator & Solver?

Calzyo is a professional scientific calculator built for speed, accuracy, and clarity. Whether you’re solving algebra homework, preparing for exams, or handling complex engineering calculations, this app delivers all the tools you need in one clean and simple interface.

KEY FEATURES

Full Scientific Functions

Easily compute sin, cos, tan, ln, log, powers, square roots, factorials, parentheses, and more. Supports both degree and radian modes — perfect for students, engineers, and professionals.
Graphing Calculator

Plot functions instantly, zoom and pan, trace curves, and find intersections and extrema. Visualize equations and gain a deeper understanding of math.
Smart Expression Display

See your entire input clearly as you type — fractions, decimals, percentages, and multi-level parentheses are displayed in a natural, readable format, helping you avoid errors.
History & Memory

Calculation history is saved automatically. Recall previous results, reuse variables, and keep working on multi-step problems without losing track.
Unit Converter & Scientific Constants

Built-in unit conversions and a handy list of scientific constants make this more than just a calculator — it’s a complete reference tool.
Clean, Ad-Free, Offline-Ready

Enjoy a minimalist interface with a dark mode option. Basic calculations work offline, no ads, no distractions, and your privacy is fully protected.
WHO IT’S FOR

Students from middle school to university, educators, engineers, financial analysts, researchers, and anyone who needs a fast, reliable calculator on the go.

Download Calzyo today — smart math, made simple.

Privacy Policy: https://sites.google.com/view/yqprivacy-policy

Terms: https://sites.google.com/view/yq-terms

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Calculator Premium - Weekly | $9.99 | per 7 days |
| Calculator Premium - Weekly | $6.99 | per 7 days |
| Calculator Premium - Yearly | $59.99 | per year |
| Calculator Premium - Monthly | $19.99 | per month |



## Version history (last 2 releases)

### 1.0.1 — 2026-09-10

What’s New in Version 1.0.1
- Fixed minor bugs to improve your experience
- Enhanced app stability for smoother performance
Thank you for using Calculator & Solver - Calzyo!

### 1.0.0 — 2026-09-07

No release notes.

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All apps by Changsha Liangchao Technology Co., Ltd.: https://appshunter.io/developer/1767728236

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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 2026-09-19.*