發票小幫手(電子發票|傳統發票掃瞄|統一發票對獎)

What 發票小幫手 covers for unified invoices

Anyone who keeps unified invoices (統一發票) ends up with a drawer of them and the same question after each draw: did any of these win? 發票小幫手(電子發票|傳統發票掃瞄|統一發票對獎) is built to answer that from a phone, whether the receipt is paper or electronic.

It covers three jobs. It checks paper invoices against the prize numbers, it scans electronic invoices with the camera, and it shows the winning number list itself. The listing describes it as free software.

The sections below go through each part in the detail the listing gives.

Checking paper invoices offline with the prize checker

The prize checker, called 對獎機 in the app, works from the last three digits of a paper invoice. You type those in and the app compares them with the prize tiers. A match on the last three digits of the head prize counts as a sixth prize (六獎). The phone vibrates, and the app shows the full head prize number so you can compare the rest of the invoice.

A match on the last three digits of the special prize (特獎) also vibrates the phone and shows the full special prize number. The listing says a spoken alert plays for these matches too, and that you can switch the voice prompt off under settings.

The prize numbers are stored on the phone, so this checking does not need a connection. The listing names it as offline prize checking, and it applies to both paper invoices and scanned electronic ones.

Scanning electronic invoices with the phone camera

For electronic invoices, point the camera at the QR code or barcode on the paper invoice. The app reads the code, checks the invoice against the prize numbers, and saves the result. You do not need to type any digits.

The listing recommends a phone camera of 8 megapixels or more, and a clear barcode, for reliable reads. If a code does not scan, the listing's advice points to the camera quality and the sharpness of the print first.

Saving scanned invoices until their draw

Scanning the left QR code on an electronic invoice certificate copy (電子發票證明聯) also records it on the phone. This matters for invoices whose draw has not yet happened. Scan them now, then open the record after the draw to see whether it won.

The scan history can also show transaction details for the invoice. The listing notes that these details are not always available, so some records may show only the prize result.

The month selector lists the months whose prizes can still be claimed. The listing says four months can be checked together, so a pile of invoices from several months can be checked in one pass without sorting them first.

Winning number lists and automatic updates

The 號碼單 tab lists the winning numbers for the two most recent issues. It needs an internet connection to load them.

According to the listing, the app updates itself after each draw, which takes place on the 25th of odd-numbered months. The next draw it names falls on 25 November 2026, for the September and October issue.

For the July and August 2026 issue, the listing gives a claim window of 6 October 2026 to 5 January 2027.

Message board, clipboard and retired cloud invoices

The 留言 board lets users post a winning reaction and share it with other users.

The 剪貼簿 is a simple text editor whose contents can be sent to other apps. The listing says it was added while the developer was testing the invoice features.

The cloud invoice feature (雲端發票) was switched off on 31 March 2025. The listing says this happened because the developer's contract with the Ministry of Finance API had ended.