# unitCalc vs Taiwan Power Coordinates

The clearest difference is in-app purchases: unitCalc at none against Taiwan Power Coordinates's 4. unitCalc also leads on ads (none vs shown) and update cadence (fortnightly vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Taiwan Power Coordinates sells 4 in-app purchases, starting at $0.99 per month. unitCalc asks for nothing beyond the download.

unitCalc ships an update fortnightly, Taiwan Power Coordinates every 2 months. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | unitCalc | Taiwan Power Coordinates |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 100 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [培祐 黃](https://appshunter.io/developer/1053411333) | [CHUN WEI HSU](https://appshunter.io/developer/1564844896) |

## What reviewers say

### unitCalc

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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Taiwan Power Coordinates

[App page](https://appshunter.io/ios/app/taiwan-power-coordinates/id6739532136)

This utility app helps users find and navigate to power coordinates and utility poles across Taiwan. It offers offline lookup, bidirectional coordinate conversion, and detailed location information, making it useful for professionals and outdoor enthusiasts.

**Highlights:** Search by power coordinates, utility pole ID, GPS, or address, Bidirectional power coordinate conversion (9-digit and 11-digit), Multiple basemap and utility pole overlay options, Offline power coordinate lookup, Export results to CSV, Street View with automatic orientation, Built-in navigation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 完整方案(月) | $0.99 | per month |
| 完整方案(季) | $2.99 | per 3 months |
| 完整方案(年) | $9.99 | per year |
| 買斷 | $39.99 | one-time |


## Frequently asked questions

### Is unitCalc free?

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

### Is Taiwan Power Coordinates free?

Taiwan Power Coordinates is free to download, with in-app purchases available.

### Do unitCalc or Taiwan Power Coordinates have ads?

Taiwan Power Coordinates shows ads; unitCalc does not.

### Which is updated more often, unitCalc or Taiwan Power Coordinates?

unitCalc ships an update fortnightly, and Taiwan Power Coordinates every 2 months. Most recently, unitCalc was updated on October 13, 2026 and Taiwan Power Coordinates on October 18, 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.*