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70
BU Score
Strong

發票小幫手(電子發票|統一發票對獎)

4.2 ✍️ Editor
✍️ BU Analytics Review

發票小幫手(電子發票|統一發票對獎) is an Android app from bluezz.tw in the Tools category, currently rated 4.2★ across 40,392 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.

Our BU Score puts it at 70Strong (healthy traction). For a Tools app, that means healthy traction.

Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.

creator

📊 Performance Tracking LIVE

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Forecast Revenue / mo
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💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 3 of 3 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Mid install base (40,392 ratings)METRIC
+$5,500
Good rating (4.2★)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
🔖 v5.7.5🔄 updated 1w ago📂 Tools💰 Free

📝 About this app

Invoice Assistant - Simple to Use, Super Fast Prize Check

The next draw for the unified invoice in March/April is on May 25, 2026 (Monday).

The latest draw numbers are for January/February 2026.

January/February 2026: Special Prize: 87510041 Grand Prize: 32220522 First Prize: 21677046, 44662410, 31262513 Prize Redemption Date: April 6, 2026 2026-07-06

Offline prize matching and e-invoice scanning available. Provides Republic of China uniform invoice winning number slips and e-invoice functionality. Directly compare numbers on the slip, or use the prize matching machine to enter the last 3 digits for prize matching. You can also scan the QR code on the left side of the e-invoice proof slip to match prizes and view transaction details. The program automatically updates after the draw on the 25th of each odd-numbered month.

【Prize Matching Machine】 You can quickly enter the last 3 digits of the invoice. If the last 3 digits of the first prize match, you have won a sixth prize. Your phone will vibrate to notify you and display the complete first prize number for comparison with other prizes.

If the last 3 digits of the grand prize match, your phone will vibrate and provide a voice prompt (voice prompt can be selected in [Settings]). The complete grand prize number will be displayed for comparison with the grand prize.

【E-invoice】 Use your phone's camera to scan the invoice paper. The system will automatically check the winning numbers and save the QR code or barcode after scanning. It is recommended to use a phone with at least 8 megapixels and a clear barcode scanner.

[Number Slip] Lists the winning numbers for the last two draws of the uniform invoice (internet access required).

[Scanning Record] Scanning the QR code on the left side of the electronic invoice will record the information on your phone. Invoices that haven't been drawn yet can be scanned first; after the draw, you can directly check if you've won and view the transaction details (the time when you can access the transaction details may vary).

[Month] You can select the months where you can still claim your prize. Check all four months at once; no need to organize a bunch of invoices by month, just use them directly for the prize check.

-----[Leave a Message]-----

Share your winning thoughts with everyone.

-----[Cloud Invoice]- ----

Due to the expiration of the API contract with the Ministry of Finance, this feature will be discontinued on March 31, 2025.

-----【Scrapbook】-----

[Invoice Helper Scrapbook] allows you to edit text and share it to other apps. It was developed as a side project for testing invoice-related functions.

-----【Settings】----- Customizable options

Disclaimer (By downloading this program, you agree to these terms)

This program is free software. The developer assumes no legal responsibility for any loss, damage, or injury caused by the use of this program.

This program is applicable to Taiwan.

----------------------------------------------------- Invoice Assistant - Required Phone Permissions

• System Tools

Enhances screen brightness to improve the scanning accuracy of invoices.

• Network Communication

Requires internet connection to update winning numbers.

• Camera

Built-in QR Code scanning function for electronic invoices; camera must be enabled.

• Storage Space

Invoice winning numbers are stored on the phone.

• Vibration Control

The phone vibrates when a matching invoice is found.

-----------------------------------------------------

This software was developed by bluezz Travel Notebook (https://bluezz.tw)

Unified Invoice Matching Website

https://invoice.cof.tw

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
發票小幫手(電子發票|統一發票對獎)
Developer
bluezz.tw
Bundle ID
invoice.cof.tw
App Store URL
Open in App Store
Category
Tools
Content rating
Not found
Languages
Not found

Company

Website
Not found
Tagline
Not found
Description
Not found
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
Not found

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$1.7K/mo
Top-grossing rank
Not found
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
Not found
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
Not found
Contact page
Not found
About page
Not found
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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