# Calculator N

> Calculator N (iPhone/iPad app by Chengdu Hot Technology Co., Ltd.)

- Source: https://appshunter.io/ios/app/calculator-n/id6816916825 (this page in markdown: same URL + `.md`)
- Developer: [Chengdu Hot Technology Co., Ltd](https://appshunter.io/developer/1856186646)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 3 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-09-29
- Data updated: 2026-10-10
- User reviews in markdown: https://appshunter.io/ios/app/calculator-n/id6816916825/reviews.md

## What is Calculator N?

Calculator N — calculation, done with care.

▸ Edit any part of your expression
Halfway through a long calculation and spot a wrong number? Tap it to select it, type the new value, and it's replaced — everything before and after stays as it was. The full expression stays on screen while you type, and the result updates as you go. Large numbers get thousands separators automatically, and you can choose how many decimal places to keep, from 0 to 10. Tap the result to copy it.

▸ Every calculation is saved
Each time you press equals, the calculation is saved automatically and shown on the calculator screen, grouped by date. Tap a record to insert its result into your current expression, recalculate the whole expression, add a note, copy it, or delete it. If you clear your records, you can restore them once. A separate History page keeps your older calculations.

▸ Six handy tools
· Currency Converter: Convert between common currencies, shown side by side, with one-tap swap.
· Amount in Words: Turn a number into its Chinese uppercase form (大写金额) for receipts and contracts. Tap to copy.
· BMI: Choose from four reference standards — China, Asia-Pacific, WHO, and US. A scale shows whether you're underweight, normal, or above the healthy range.
· Mortgage Calculator: Commercial loans based on LPR plus a spread, as well as Housing Provident Fund loans. Supports both equal installments and equal principal. See your monthly payment, total interest, and total repayment at a glance, and expand to view principal and interest for each month.
· Interest & Returns: Savings interest (simple or compound), investment returns (lump sum or monthly contributions), and compound future value.
· Date Tools: Calculate age and lunar birthday from a date of birth; find the time between two dates; count days, weeks, or months forward or back from any date; convert Gregorian dates to the Chinese lunar calendar.

▸ Look and feel
14 theme colors — keys and highlights change together — plus Dark Mode. Key sounds, haptic feedback, and voice readout can each be turned on separately, and voice readout won't interrupt music that's playing. Add it to Control Center to open the calculator with one tap.

Currency, mortgage, interest, and BMI results are for reference only.


## Version history (last 4 releases)

### 4.0.0 — 2026-10-09

性能优化与bug修复。

### 3.0.0 — 2026-10-08

· 新增自定义按钮颜色：可以挑任意颜色，还能保存多个
· 新增「好物推荐」
· 计算器页细节优化：计算记录改为一行显示，算式与结果间距更协调
· 历史数据页：长算式完整显示；点一下就能复制算式、复制结果或删除
· BMI 页面按结果显示不同颜色，删改数字时不再闪跳
· 汇率换算、设置页界面优化
· 修复若干已知问题

### 2.0.0 — 2026-10-01

bug修复与性能优化。

### 1.0.0 — 2026-09-30

No release notes.

## More apps by Chengdu Hot Technology Co., Ltd

- [eSIM保号神器](https://appshunter.io/ios/app/esim/id6758548912)

All apps by Chengdu Hot Technology Co., Ltd: https://appshunter.io/developer/1856186646

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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 2026-10-10.*