# Tabi Calc vs unitCalc

The clearest difference is in-app purchases: unitCalc at none against Tabi Calc's 3. unitCalc also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, 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. unitCalc asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 20, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Tabi Calc | unitCalc |
| --- | --- | --- |
| 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 | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 1 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tsuyoshi Niwa](https://appshunter.io/developer/888556976) | [培祐 黃](https://appshunter.io/developer/1053411333) |

## 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 |
| 6 month subscription | $4.49 | per 6 months |
| Yearly Subscription | $7.99 | per year |


### unitCalc

[App page](https://appshunter.io/ios/app/unitcalc/id6445979881)

**Features:** macOS Compatibility, 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 unitCalc free?

unitCalc is free to download, with no in-app purchases.

### Do Tabi Calc or unitCalc have ads?

Neither Tabi Calc nor unitCalc shows ads.

### Which is updated more often, Tabi Calc or unitCalc?

Tabi Calc ships an update fortnightly, and unitCalc fortnightly. Most recently, Tabi Calc was updated on September 20, 2026 and unitCalc on September 28, 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.*