# Tabi Calc vs TimeCalc w/ Watch App

The clearest difference is in-app purchases: TimeCalc w/ Watch App at none against Tabi Calc's 3. TimeCalc w/ Watch App also leads on iOS requirement (15.0 vs 17.0). Tabi Calc's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Tabi Calc sells 3 in-app purchases, starting at $0.99 per month. TimeCalc w/ Watch App asks for nothing beyond the download.

Tabi Calc ships an update every 3 weeks, TimeCalc w/ Watch App every 3 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Tabi Calc | TimeCalc w/ Watch App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (40 ratings)](https://appshunter.io/ios/app/tabi-calc/id1246912834/reviews)** | — |
| Number of ratings | **40** | — |
| Positive reviews | 43.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 9 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Tsuyoshi Niwa](https://appshunter.io/developer/888556976) | [Legal Prompt Inc.](https://appshunter.io/developer/1490746932) |

## What reviewers say

### Tabi Calc

[App page](https://appshunter.io/ios/app/tabi-calc/id1246912834)

This app is a travel-focused calculator that simplifies date, time, and currency calculations. It helps users plan trips, manage itineraries, and convert currencies with live or offline rates. Designed for travelers, it offers an intuitive interface and accurate results.

**Highlights:** 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

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Yearly Subscription | $9.99 | per year |
| Lifetime Pro | $39.99 | one-time |


### TimeCalc w/ Watch App

[App page](https://appshunter.io/ios/app/timecalc-w-watch-app/id6733239757)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Tabi Calc free?

Tabi Calc is free to download, with in-app purchases available.

### Is TimeCalc w/ Watch App free?

TimeCalc w/ Watch App is free to download, with no in-app purchases.

### Do Tabi Calc or TimeCalc w/ Watch App have ads?

Both Tabi Calc and TimeCalc w/ Watch App show ads.

### Which is updated more often, Tabi Calc or TimeCalc w/ Watch App?

Tabi Calc ships an update every 3 weeks, and TimeCalc w/ Watch App every 3 months. Most recently, Tabi Calc was updated on November 6, 2026 and TimeCalc w/ Watch App on November 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*