# 發票小秘書 vs i 統一發票 電子發票管理工具

The clearest difference is review sentiment: 發票小秘書 at 100% against i 統一發票 電子發票管理工具's 50%. i 統一發票 電子發票管理工具's advantage is rating (4.8 vs 3.0) and ratings volume (383 vs 2). 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.

i 統一發票 電子發票管理工具 holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: i 統一發票 電子發票管理工具 has 383 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 100% of 發票小秘書's written reviews are positive against 50% of i 統一發票 電子發票管理工具's, so the app with the better star average is not the one people write more warmly about.

發票小秘書 ships an update every 5 weeks, i 統一發票 電子發票管理工具 every 2 months. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 發票小秘書 | i 統一發票 電子發票管理工具 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/id454985448/reviews) | **[4.8 (383 ratings)](https://appshunter.io/ios/app/i/id526625386/reviews)** |
| Number of ratings | 2 | **383** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 37 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [CHEN SHANG LAN](https://appshunter.io/developer/454985451) | [GETONE TECH CO.](https://appshunter.io/developer/526625809) |

## What reviewers say

### 發票小秘書

[App page](https://appshunter.io/ios/app/id454985448)

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

**In-app purchases:** none


### i 統一發票 電子發票管理工具

[App page](https://appshunter.io/ios/app/i/id526625386)

This app helps users automatically check lottery winning numbers for unified invoices and manage their digital receipts. It offers features for scanning paper invoices, tracking spending, and donating to charity. Users receive timely notifications for winning numbers and can easily access their transaction history.

**Highlights:** Automatic lottery checking for unified invoices, Scan and manage paper invoices, Digital receipt management, Spending analysis and statistics, Donation support for cloud invoices, Push notifications for winning numbers

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

**In-app purchases:** none


## Frequently asked questions

### Is 發票小秘書 free?

發票小秘書 is free to download, with no in-app purchases.

### Is i 統一發票 電子發票管理工具 free?

i 統一發票 電子發票管理工具 is free to download, with no in-app purchases.

### Which has better reviews, 發票小秘書 or i 統一發票 電子發票管理工具?

i 統一發票 電子發票管理工具 is rated higher. 發票小秘書 averages 3.0 out of 5 from 2 ratings, while i 統一發票 電子發票管理工具 averages 4.8 from 383 ratings.

### Do 發票小秘書 or i 統一發票 電子發票管理工具 have ads?

Both 發票小秘書 and i 統一發票 電子發票管理工具 show ads.

### Which is updated more often, 發票小秘書 or i 統一發票 電子發票管理工具?

發票小秘書 ships an update every 5 weeks, and i 統一發票 電子發票管理工具 every 2 months. Most recently, 發票小秘書 was updated on October 26, 2026 and i 統一發票 電子發票管理工具 on October 29, 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.*