# Freestyle Calculator: Sci & FX — Formula·Percent·Math·Sync·Tape

> Real-time expression editing calculator with history, unit conversion, and customization. (iPhone/iPad app by 锋 邹.)

- Source: https://appshunter.io/ios/app/freestyle-calculator-sci-and-fx/id6760956908 (this page in markdown: same URL + `.md`)
- Developer: [锋 邹](https://appshunter.io/developer/1863829052)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 8 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 25 MB
- Languages: American English, Amharic, Arabic, Bangla, Czech, Dutch, French (France), German (Germany), Hindi, Indonesian and 13 more
- Released: 2026-04-11
- Data updated: 2026-08-19
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/freestyle-calculator-sci-and-fx/id6760956908/reviews.md

## What is Freestyle Calculator?

Freestyle Calculator gives you real-time expression editing on iPhone and iPad.

Start typing and watch the result update live — no equals button needed. Move the cursor anywhere in your expression, edit freely, and the preview adjusts instantly. Every calculation is saved with a searchable, annotated history.

CORE FEATURES

▸ Real-time preview — see results as you type
▸ Expression editing — backspace, insert, or reposition the cursor
▸ Searchable history — pin, copy, annotate, or reuse any calculation
▸ Unit conversion — length, mass, area, volume, temperature, time
▸ Reference exchange rates — multiple providers with automatic fallback
▸ Widgets — exchange rates and formulas on your home and lock screen

PRO FEATURES

▸ Keyboard Studio — rearrange keys, save multiple layouts (Compact / Standard / Scientific)
▸ Theme Studio — 10 keyboard themes, accent colors, key density, dark mode
▸ Custom Formulas — reusable workflows with variables and live FX rates
▸ Sessions — organize work into named groups with notes and pins
▸ Cloud Sync — back up everything to iCloud, restore on any device

Always available: real-time preview, full history, unit conversion, and scientific keys. No ads, no accounts, no server dependency. Your data stays on your device by default.

Privacy Policy: https://apps.foamzou.com/freestyle-calculator/privacy/
Terms of Use: https://apps.foamzou.com/freestyle-calculator/terms/

## Key features

- Real-time calculation preview
- Flexible expression editing
- Searchable calculation history
- Unit and currency conversion
- Customizable keyboard layouts
- Cloud synchronization

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| CalcStudio Pro Annual | $3.99 | per year |
| CalcStudio Pro Monthly | $0.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| CalcStudio Pro Lifetime | $7.99 | one-time |
| Medium Tip | $3.99 | one-time |
| Large Tip | $9.99 | one-time |
| Small Tip | $0.99 | one-time |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/freestyle-calculator-sci-and-fx/id6760956908/reviews.md

### 5/5 — 很简约的好用的计算器工具

*2026-06-15*

支持的功能很实用，界面简约无广告，还有各种换算功能，汇率实时换算，流量数据换算等等

### 5/5 — 很棒的计算器

*2026-04-22*

功能非常实用，实时编辑这一项就超越了苹果原生计算器。

### 5/5 — 改进

*2026-04-21*

能改成左滑删除吧现在苹果把这个功能取消了还是很怀念这个操作

### 5/5 — 能把人声声音加入就完美了

*2026-04-13*

很好的app

**Developer response:** 你好，已支持语音播报功能

## Frequently asked questions about Freestyle Calculator

### Does Freestyle Calculator have ads?

No, Freestyle Calculator is ad-free. The app description explicitly states 'No ads, no accounts, no server dependency.'

### What is the pricing for Freestyle Calculator?

The core features of Freestyle Calculator are free to use. Advanced features are available through 'CalcStudio Pro' with monthly ($0.99) and annual ($3.99) subscription plans, the latter including a 7-day free trial.

### How does Freestyle Calculator handle data privacy?

Freestyle Calculator prioritizes user privacy by keeping data on the device by default. It states 'Your data stays on your device by default' and does not require accounts or server dependency for core functions.

### What devices is Freestyle Calculator compatible with?

Freestyle Calculator is available for iPhone and iPad. It is designed to work on both platforms, offering a seamless experience.

### How often is Freestyle Calculator updated?

The latest version of Freestyle Calculator is 1.3.3, last updated on June 25, 2026. This indicates a recent update, suggesting ongoing development and support.

### Can I customize the keyboard in Freestyle Calculator?

Yes, Freestyle Calculator offers 'Keyboard Studio' as a Pro feature, allowing you to rearrange keys and save multiple layouts, including Compact, Standard, and Scientific options.

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

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

### How does the real-time preview work in Freestyle Calculator?

The real-time preview allows you to see the calculation result update instantly as you type or edit your expression, eliminating the need to press an equals button.

## Version history (last 5 releases)

### 1.3.5 — 2026-08-12

- [Improved] Voice readout: Key announcements feel more responsive and naturally overlap during rapid input. Speech speed is now simplified to Relaxed, Standard, and Brisk, with visible generation progress; generated speech is reused to reduce repeated waits.

### 1.3.4 — 2026-08-01

- [New] Text Size: too small to read? Adjust it right in Settings and watch it change as you drag; it now follows your system text size too, and you can fine-tune the display, keys and recent history separately
- [Improved] Formula Mode: tap anywhere in a variable to fix a digit — no more backspacing all the way

### 1.3.3 — 2026-06-25

- [New] Result Display: Option to disable thousands separators, with the calculator and converter pages staying in sync
- [New] Percent Rule: Added a "Percentage Increase/Decrease" mode, perfect for markup, tax, tip, and discount scenarios
- [New] History: Added a "Save history on clear" switch so you can keep history only after pressing =
- [Improved] App icon refresh
- [Fixed] The "±" key now negates only the last number, matching the iOS native calculator

### 1.3.2 — 2026-06-14

- [New] Custom Keyboard: Added a "00" key that you can place on your keyboard to quickly enter two zeros
- [New] Sharing: Turn any calculation into a beautiful image card and share it in one tap
- [New] Unit Conversion: Added "Data Size" conversion, with a switch between 1024 and 1000 conversion rules
- [Fixed] iOS 17: Fixed an issue where tapping "Keyboard Gestures" in Advanced Settings did not respond

### 1.3.1 — 2026-06-11

- [Fixed] Device heating up and faster battery drain during extended use in some cases
- [Fixed] Choppy animations when opening Settings or switching keyboards with the Frost theme
- [Fixed] Clearing an expression after relaunching the app could create a duplicate history record

## More apps by 锋 邹

- [Scrollie: Long Screenshot](https://appshunter.io/ios/app/scrollie-long-screenshot/id6757146579)
- [CollectorCam - Photo Frames](https://appshunter.io/ios/app/collectorcam-photo-frames/id6761397599)

All apps by 锋 邹: https://appshunter.io/developer/1863829052

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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 2026-08-19.*