# CalcKit: All-in-One Calculator — Money, Health & GPA Calculator

> Money, Health & GPA Calculator (iPhone/iPad app by Gang Chen.)

- Source: https://appshunter.io/ios/app/calckit-all-in-one-calculator/id6806464123 (this page in markdown: same URL + `.md`)
- Developer: [Gang Chen](https://appshunter.io/developer/1793243407)
- Category: Utilities, Finance
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.6 · 5 MB
- Languages: American English
- Released: 2026-09-21
- Data updated: 2026-10-02

## What is CalcKit?

CalcKit is 33 calculators in one clean, fast app — the money, health, school, and everyday math you actually run, without the ads-first clutter or the spreadsheet.

Every calculator is built for real decisions: enter your numbers, see the answer instantly, and get the supporting detail — charts, breakdowns, and full amortization tables — right underneath.

BUILT FOR THE US AND CANADA
Most calculators guess at your country. CalcKit asks once and then gets it right:
• Take-home pay with federal and state or provincial brackets
• Sales tax that knows GST, HST, and PST — not just a flat rate
• Retirement savings modeled as 401(k)/IRA or RRSP/TFSA
• Closing costs including land transfer tax
• Imperial or metric units, set to match your region

FINANCE & TAX (15)
Mortgage Payment • Take-Home Pay • Sales Tax • Loan Payoff • Compound Interest • Retirement Savings • Savings Goal • Rent vs Buy • Currency Converter • Tip Calculator • Profit Margin • ROI • CAGR • APR • Commission

REAL ESTATE (5)
Cap Rate • Cash-on-Cash Return • Rental Yield • Closing Costs • Amortization Schedule

HEALTH & FITNESS (5)
BMI • TDEE / Calories • Macro Calculator • Body Fat % (Navy method) • Water Intake

STUDENT (3)
GPA Calculator • Final Exam Grade • Student Loan

EVERYDAY (5)
Percentage • Discount • Unit Converter • Unit Price • Age Calculator

DESIGNED TO BE FAST
• Favorites — pin the calculators you use weekly to the top
• History — every calculation saved automatically, ready to reopen
• Charts and tables that make long-term numbers make sense
• Light and dark themes that follow your system setting
• Seven languages: English, Español, Français, 简体中文, 繁體中文, 日本語, 한국어

PRIVATE BY DESIGN
CalcKit works entirely offline. There is no account, no sign-up, and no server — your salary, your mortgage, and your health numbers stay on your device and are never uploaded anywhere.

CALCKIT PRO
A single one-time purchase — no subscription:
• Remove banner ads
• Extended history: 100 calculations instead of 20
• Unlimited saved calculations instead of 5

Note: the currency converter uses built-in offline reference rates for eight major currencies and is intended for quick estimates, not for trading or settlement.

Questions or a calculator you want added? Get in touch — CalcKit is actively developed and the list keeps growing.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| CalcKit Pro | $2.99 | one-time |


## Is CalcKit safe?

Not enough ratings yet to assess CalcKit.

## Is CalcKit legit?

CalcKit: All-in-One Calculator appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for CalcKit is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.2 — 2026-09-21

No release notes.

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## More apps by Gang Chen

- [OnlyInvoice](https://appshunter.io/ios/app/onlyinvoice/id6742164799)
- [TimeCard: Work Hours & Pay](https://appshunter.io/ios/app/timecard-work-hours-and-pay/id6814944612)

All apps by Gang Chen: https://appshunter.io/developer/1793243407

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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 2026-10-02.*