# Tabi Calc — Date, Time & Currency Calc

> Travel calculator for date, time, and currency conversions. (iPhone/iPad app by Tsuyoshi Niwa.)

- Source: https://appshunter.io/ios/app/tabi-calc/id1246912834 (this page in markdown: same URL + `.md`)
- Developer: [Tsuyoshi Niwa](https://appshunter.io/developer/888556976)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 3.90/5 from 40 App Store ratings · 41 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 12 MB
- Languages: Korean, Dutch, German (Germany), Russian, European Spanish, American English, Italian, Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan) and 3 more
- Released: 2017-06-13
- Data updated: 2026-08-30
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/tabi-calc/id1246912834/reviews.md

## What is Tabi Calc?

Your essential calculator for travel – Tabi Calc handles time, date, and currency effortlessly.

Tabi Calc is a smart, travel-focused calculator designed to make your journey planning and on-the-go calculations faster, simpler, and more accurate. Whether you're figuring out time zones, calculating the duration of a trip, or converting foreign currency, Tabi Calc does it all in one intuitive interface.


Date & Time Calculator

Easily calculate time differences and durations:
Find out how many days, weeks, or hours between two dates.
Add or subtract days, months, or years from any date.
Perfect for planning itineraries, visa durations, or work schedules across time zones.


Currency Converter

Convert currencies with live or offline rates:
Automatically detects your location to suggest local currency.
Supports over 160 currencies with frequently updated exchange rates.
Works offline with previously fetched rates—ideal for travel without data.


Made for Travelers

Tabi Calc was designed with travelers in mind:
One tool for all your date, time, and currency needs.
Compact, fast, and easy to use—even on the go.
Saves recent calculations for quick reference.


International Support

Handles regional date formats and localization.
Accurate with leap years, daylight saving time, and calendar math.
Designed to support users worldwide.


More Than Just a Calculator

Tabi Calc is built to be both powerful and simple:
Clean, distraction-free interface.
No ads, no clutter—just focused tools to get the job done.
Precise results powered by a calculation engine built for accuracy.


Whether you're a frequent flyer, digital nomad, travel planner, or just someone who needs a smarter calculator, Tabi Calc is the perfect companion for navigating dates, times, and currencies with confidence.

Download Tabi Calc now and travel smarter.

## Key features

- Date and time difference calculations
- Add/subtract days, months, years from dates
- Multi-currency converter with live/offline rates
- Supports over 160 currencies
- Location-based currency suggestions
- Offline currency rate support
- Saves recent calculations

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| 6 month subscription | $4.49 | per 6 months |
| Yearly Subscription | $7.99 | per year |


## Recent user reviews (10 of 41)

All indexed reviews: https://appshunter.io/ios/app/tabi-calc/id1246912834/reviews.md

### 1/5 — Developer Cut Features From Paid App

*2025-03-30*

I purchased Tabi Calc for date calculations before the developer switched to a subscription model. Those features (that I already paid for) are now locked behind a subscription. Restoring the purchase does nothing. Fortunately, every feature this app offers is available in the iOS calculator or from Google for free.

### 1/5 — Não funciona sem assinatura

*2025-01-16, version 2.3.4*

Era um bom app, mas agora precisa de assinatura para fazer qualquer coisa que não sejam contas de calculadora básica, ou seja, use o app original do iPhone que é grátis.

Se quiser qualquer outra função, agora é preciso pagar a assinatura.

Não recomendo.

### 1/5 — Unscrupulous developer

*2025-01-01*

Dev changed to subscription model without grandfathering in previous paid customers. How is this even legal?

### 1/5 — Une honte

*2024-07-09, version 2.3.3*

J’ai acheté cette application il y a un plus de 5 ans je l’utilisais de temps en temps, très pratique.
Maintenant il faut un abonnement.
honte à vous.

### 1/5 — Added subscription! Pass

*2024-04-06*

Not worth $8. Would have paid $2 for the full app but certainly not that much.

### 1/5 — Subscription Ambush

*2024-03-30, version 2.3.3*

After using this app for time calculations for a number of years, without any warning it suddenly demanded a subscription payment in order for it to keep working.

### 3/5 — Atualização

*2024-01-21, version 2.3.3*

O aplicativo era bom. De vez em quando eu precisava calcular a diferença entre duas datas e funcionava certinho. Contudo, atualizaram o app e agora tem mensalidade. Fica a dica.

### 5/5 — J의 필수 어플이였는데

*2024-01-02*

시간계산기 너무 잘썻고 딱 제가 원하던거였어요
약속시간이나 그런거 생각할때 제가 종종 썼는데
어느순간 구독으로 바뀌었네요 아쉬워요
구독으로 쓰기엔 너무 부담스럽네요.
다른어플 찾아 떠날게요 ㅠㅠ

### 1/5 — Became useless

*2023-11-29, version 2.3.3*

Pass your way, this is now a paying calculator feature !

### 1/5 — Kostenlos und auf einmal will er Geld 👎

*2023-10-19*

Danke dafür, zum Glück gibts Backups.

## Frequently asked questions about Tabi Calc

### What does Tabi Calc do?

Tabi Calc is a specialized calculator designed for travelers. It helps you easily calculate time differences, durations between dates, and convert currencies using live or offline exchange rates. It's built to simplify planning and on-the-go calculations for trips.

### What are the key features of Tabi Calc?

Key features include a date and time calculator for finding differences and durations, a currency converter supporting over 160 currencies with live and offline rates, location-based currency suggestions, and the ability to save recent calculations for quick access. It also handles regional date formats and localization.

### Is Tabi Calc free to use?

The application is free to download and use, offering core functionalities. It operates on a 'free with in-app purchases' model, suggesting that some advanced features or additional content may be available for purchase within the app.

### Can I use Tabi Calc offline?

Yes, Tabi Calc is designed to work offline for currency conversions. You can fetch and store exchange rates beforehand, making it ideal for travel situations where internet access might be limited or unavailable. Date and time calculations also function without an internet connection.

### Who is Tabi Calc designed for?

This app is ideal for frequent flyers, digital nomads, travel planners, and anyone who travels regularly or needs to manage dates, times, and currencies across different regions. Its intuitive design and travel-specific features make it a practical tool for navigating international journeys.

## Version history (last 5 releases)

### 2.3.13 — 2026-02-25

Fixed an issue where photo dates weren’t applied correctly when calculating time.

### 2.3.12 — 2026-02-17

bug fix and performance improvement

### 2.3.11 — 2025-09-02

bug fix and performance improvement

### 2.3.10 — 2025-09-01

bug fix and performance improvement

### 2.3.9 — 2025-06-26

bug fix and performance improvement

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## More apps by Tsuyoshi Niwa

- [Pic Navi](https://appshunter.io/ios/app/pic-navi/id888556973)
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All apps by Tsuyoshi Niwa: https://appshunter.io/developer/888556976

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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 2026-08-30.*