# Calculator Pro - Professional — Expr. math, tape & formulas

> Expr. math, tape & formulas (iPhone/iPad app by 家芳 陶.)

- Source: https://appshunter.io/ios/app/calculator-pro-professional/id6768542466 (this page in markdown: same URL + `.md`)
- Developer: [家芳 陶](https://appshunter.io/developer/1891660721)
- Category: Utilities
- Price: $0.99
- Age rating: 4+
- Requires: iOS 17.6 · 1 MB
- Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2026-05-18
- Data updated: 2026-07-27
- User reviews in markdown: https://appshunter.io/ios/app/calculator-pro-professional/id6768542466/reviews.md

## What is Calculator Pro?

About
Professional Calculator helps you evaluate expressions quickly, review a tape-style history, and build reusable formulas with optional exchange-rate context. Display and sound can be tuned to your habits. Data stays on your device.

Calculate
• Familiar operators and parentheses for chained calculations
• A tape area shows recent entries near your input
• You can hide the keypad for more reading space

History
• Successful "=" runs can be saved locally for review (behavior as implemented in the app)
• Tape layouts: default, result-only, or full view
• Batch select/delete and selection sum
• Copy expression or result; optional tags for organization
• Create a formula template from a history entry (as supported in-app)

Formulas
• Compose calculations with blocks for easier edits and reuse
• Pick base/quote currencies and refresh a reference rate (Frankfurter public API)
• Inject the rate into a number block; save and manage templates

Settings
• Optional key tap sound (may be silent in silent mode)
• Decimal places, thousands grouping, and theme (system/dark/light)

Important
Rates are third-party public data for reference only—not investment advice. Use your bank or official channels for trading decisions.

Privacy & data
History and related data are stored locally on device by default. Features are as shown in the app; if a Privacy Policy is provided, it prevails for legal details.


## Version history (last 1 release)

### 1.0 — 2026-05-19

No release notes.

## More apps by 家芳 陶

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All apps by 家芳 陶: https://appshunter.io/developer/1891660721

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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 2026-07-27.*