# Calculator - Spoken Formulas — Scientific math with history

> Intuitive calculator app with formula display, history, and customizable skins. (iPhone/iPad app by 荣 周.)

- Source: https://appshunter.io/ios/app/calculator-spoken-formulas/id1322880549 (this page in markdown: same URL + `.md`)
- Developer: [荣 周](https://appshunter.io/developer/1241562586)
- Category: Utilities, Finance
- Price: Free with in-app purchases
- Rating: 4.80/5 from 16 App Store ratings · 13 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 33 MB
- Languages: American English, Dutch, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean, Malay and 10 more
- Released: 2017-12-29
- Data updated: 2026-09-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calculator-spoken-formulas/id1322880549/reviews.md

## What is Calculator?

Smart Calculator+ keeps every calculation clear, editable, and easy to revisit.

• Tap any number or operator to edit an expression and update the result instantly
• Basic and scientific keypads with trigonometry, logarithms, powers, roots, factorials, permutations, and combinations
• Save calculation history with notes; search, load, reuse, and review detailed statistics
• Share formulas, results, and notes as a clean long image
• Customize a simpler keypad and make frequently used keys larger
• Chinese, Japanese, and English key and result voices
• Dark mode, text size, decimal precision, angle unit, key sounds, and haptics
• An optional one-time Pro purchase removes ads and unlocks interactive Quick Calculation widgets

Calculations and notes stay on your device. No account is required.

## Key features

- Formula display for error prevention
- Calculation history for editing
- Sheet management function
- Customizable style skins
- Tone and vibration feedback
- Dynamic icon changes
- Share calculation results

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Professional Edition | $6.99 | one-time |


## Recent user reviews (10 of 13)

All indexed reviews: https://appshunter.io/ios/app/calculator-spoken-formulas/id1322880549/reviews.md

### 5/5 — Surprisingly Amazing!

*2023-06-29, version 4.1.2*

Very cool calculator. Well thought out and fast. I really like the clean modern look. Well worth the money.

One small suggestion. It has decimal digits for 3 and 5, but not 4. In my line of work I need 4 digits. Please add this feature.

### 5/5 — Saber

*2023-06-15*

If the points among digits are being written it is gonna be the best calculator that i have ever used 2000,000,000,000, like this

### 1/5 — Alles 0 NICHT HERUNTERLADEN!!!!

*2023-06-02, version 4.1.0*

0000

### 4/5 — Missing star

*2022-09-07, version 4.1.0*

You guys need to make a long math problem editable. 

Example being:

30000+(80×20×0.4×50)+(60×13×0.6×50) = 85400

I don’t have to rewrite the whole thing to make a small change!

Thanks

### 5/5 — 很喜歡

*2020-11-13, version 4.0.8*

介面設計很舒服。請問可以在運算列單純複製計算結果嗎？

### 5/5 — Like it!

*2020-02-05, version 4.0.1*

Needs to have the plus,minus, equals buttons in a different position. Love the history and ability to use the history for current equations.

### 5/5 — 最好用的iOS計算機

*2019-05-21, version 3.2.2*

最好用的iOS計算機

### 5/5 — Love it!

*2019-04-13*

The only calculator app I will use. I love that you can personalize it and it has a great design.

**Developer response:** Thank you for your use！

### 1/5 — Fake!

*2019-03-15, version 3.2.2*

Everything equals Zero!!

### 3/5 — Could be just what I need

*2018-12-03*

but it doesn’t calculate, all answers are 0

## Frequently asked questions about Calculator

### What is the short name for Smart Calculator-With History?

The short common name for Smart Calculator-With History is Smart Calculator. This is derived by removing the subtitle and anything after the dash.

### How accurate is Smart Calculator?

Smart Calculator displays mathematical formulas as you enter them, which helps prevent input errors. Users have rated it highly, with an average of 4.8 stars from 16 ratings, indicating a high level of user satisfaction with its accuracy and functionality.

### Does Smart Calculator have ads?

Yes, Smart Calculator contains advertisements. This is indicated by the 'hasAds' flag being true in its data.

### What devices is Smart Calculator available on?

Smart Calculator is available on iPhone, iPad, and iPod devices. It is designed for the iOS ecosystem.

### How often is Smart Calculator updated?

The latest version of Smart Calculator was released on June 20, 2023. This suggests it receives regular updates to maintain performance and add features.

### What is the age rating for Smart Calculator?

Smart Calculator has an age rating of 4+. This means it is suitable for children aged 4 and above.

### Can I save my calculations with Smart Calculator?

Yes, Smart Calculator records the complete calculation process and supports local storage of calculated records for easy viewing anywhere. You can also insert notes to achieve accounting purposes.

### How does Smart Calculator compare to other calculator apps?

Smart Calculator stands out with its formula display feature, which helps prevent errors. It also offers customizable skins and a history function for easy editing and recalculation, providing a more user-friendly experience than basic calculators.

## Version history (last 5 releases)

### 5.0.2 — 2026-09-22

Fixed edge cases when editing decimals, parentheses, and signs, and when continuing input after deletion. Live calculations are more reliable.

### 5.0.1 — 2026-09-19

Fixed calculations with very large or small numbers in scientific notation and a backspace issue after replacing a function.

### 5.0.0 — 2026-09-18

Version 5.0.0 is a complete upgrade:
• Tap-to-edit expressions with live results
• Redesigned basic and scientific keypads with a customizable simple mode
• Saved history, notes, search, statistics, reuse, and long-image sharing
• New interactive Quick Calculation widgets
• Refined voice, haptics, appearance, and iPhone/iPad layouts
• Improved reliability and data compatibility

### 4.1.2 — 2023-06-20

- fix a few issues

### 4.1.0 — 2021-08-06

- update something

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All apps by 荣 周: https://appshunter.io/developer/1241562586

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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 2026-09-24.*