# 發票集點樂 vs unitCalc

The clearest difference is iOS requirement: 發票集點樂 at 9.0 against unitCalc's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

發票集點樂 ships an update every 4 weeks, unitCalc monthly. Both last shipped on November 7, 2026.

## The numbers

| Metric | 發票集點樂 | unitCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Monthly |
| Size | 19 MB | 1 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chi-Cheng Liao](https://appshunter.io/developer/1053803113) | [培祐 黃](https://appshunter.io/developer/1053411333) |

## What reviewers say

### 發票集點樂

[App page](https://appshunter.io/ios/app/id1492635222)

**Features:** macOS Compatibility

**In-app purchases:** none


### unitCalc

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

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

**In-app purchases:** none


## Frequently asked questions

### Is 發票集點樂 free?

發票集點樂 is free to download, with no in-app purchases.

### Is unitCalc free?

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

### Do 發票集點樂 or unitCalc have ads?

Neither 發票集點樂 nor unitCalc shows ads.

### Which is updated more often, 發票集點樂 or unitCalc?

發票集點樂 ships an update every 4 weeks, and unitCalc monthly. Most recently, 發票集點樂 was updated on November 7, 2026 and unitCalc on November 7, 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.*