# 發票對獎 vs 發Q

The clearest difference is review sentiment: 發票對獎 at 94% against 發Q's 40%. 發Q's advantage is update cadence (every 4 weeks vs every 6 months) and iOS requirement (12.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

發票對獎 ships an update every 6 months, 發Q every 4 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | 發票對獎 | 發Q |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (65 ratings)](https://appshunter.io/ios/app/id967299053/reviews)** | — |
| Number of ratings | **65** | — |
| Positive reviews | **94.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 4 weeks** |
| Monetization | — | Ad-supported |
| Size | 14 MB | 30 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [fengyi tsai](https://appshunter.io/developer/967299052) | [BAT Mobile Inc.](https://appshunter.io/developer/1190563974) |

## What reviewers say

### 發票對獎

[App page](https://appshunter.io/ios/app/id967299053)

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

**In-app purchases:** none


### 發Q

[App page](https://appshunter.io/ios/app/q/id1413228414)

This app helps you track personal spending by combining cloud and paper invoices. It offers a unique, multi-language voice-guided experience for checking lottery winning numbers, making the process fun and educational. Easily manage your electronic receipts and reduce paper waste.

**Highlights:** Cloud and paper invoice tracking, Multi-language voice-guided lottery checking, Customizable voice options, Invoice scanning with sound effects, Electronic receipt management, Desktop widget for quick access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 發票對獎 free?

發票對獎 is free to download, with no in-app purchases.

### Is 發Q free?

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

### Do 發票對獎 or 發Q have ads?

Both 發票對獎 and 發Q show ads.

### Which is updated more often, 發票對獎 or 發Q?

發票對獎 ships an update every 6 months, and 發Q every 4 weeks. Most recently, 發票對獎 was updated on October 24, 2026 and 發Q on October 24, 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.*