Comparison

SCAN ACE · PDF Scanner App vs Invoice Maker・Estimate App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SCAN ACE · PDF Scanner App

Transform any document or image into a high-quality digital file. This app offers automatic edge detection, multiple scan modes, and advanced editing tools like OCR, filters, and watermarking. Securely manage, share, and convert your files with ease.

Highlights
  • Automatic document edge detection
  • Document, ID, and Passport scan modes
  • AI OCR for text recognition and copying
  • Professional editing filters
  • Add signatures and watermarks
  • Password protection for PDFs
  • Cloud storage integration
Features
Read full description

Turn a simple scan into perfect results - SCAN ACE Every file and image is consistently captured with clear, high-quality results. Trusted by millions of users worldwide for over a decade. SCAN ACE PROVIDES ALL THE TOOLS FOR DOCUMENTS: FULL FEATURE SCANNER - Automatically detects document edges with no manual angle adjustment required; - Supports Document, ID Card, Passport scan modes, and image to PDF conversion for different needs; - Provides the option to select page size when exporting documents; - Supports JPG, PDF, and image to PDF file formats for sharing ALL IN ONE PDF DOCUMENT EDITOR - Recognizes text in over 20 languages with AI OCR and supports content copying; - Professional filters including Color, Black & White, Photo, Grayscale; - Draw or scan a signature directly into documents; - Highlight important information with a marker. - Add a watermark to documents for protection or labeling. MANAGE & SHARE PDF - Add a password to PDF documents to keep them secure; - Send documents by fax or email, save to files, or upload to Google Drive, OneDrive, Box, and Dropbox; - Adjust PDF pages to reorder, delete, or rotate them; - Convert files to PDF or search PDF documents by keywords to quickly find what you need SUBSCRIPTION DETAILS - Weekly and annual subscriptions are available. - Payment will be charged to your iTunes account at confirmation of purchase. - Your subscription will automatically renew unless auto-renew is disabled at least 24 hours before the end of the current subscription period. - Automatic renewals will be charged at the same price you were originally charged for the subscription. - Subscriptions can be managed by going to Account Settings on the App Store after purchase. SCAN ACE is regularly updated with new features and improvements. If you encounter any issues, please contact us before leaving a review. We are always ready to help and guide you through using the app. If you have a problem or suggestion, please email support@neopixel.biz. You will receive a timely response and solution. Terms of Service: https://neopixel.ai/SCAN-ACE/terms Privacy Policy: https://neopixel.ai/SCAN-ACE/privacy

About

Invoice Maker・Estimate App

Create, send, and manage professional invoices, estimates, and receipts effortlessly. Designed for freelancers and small businesses, this tool helps you get paid faster and stay organized on the go.

Highlights
  • Create professional invoices
  • Send estimates and receipts
  • Convert estimates to invoices
  • Track invoices and payments
  • Manage client information
  • Send invoices via email/text
Read full description

Invoice Maker is a simple invoice and estimate app for contractors, tradespeople, freelancers, and small businesses. Create a professional invoice or estimate on your iPhone or iPad in minutes, send it as a PDF, and keep track of who has paid. It is built for people who need fast, clean billing, not full accounting software. If you need bookkeeping, payroll, or crew scheduling, a larger tool will suit you better. If you want to quote a job, bill it, and get back to work, this is made for that. WHO IT'S FOR Plumbers, electricians, HVAC technicians, roofers, painters, carpenters, landscapers, cleaners, handymen, mechanics, consultants, and freelancers. WHAT YOU CAN DO - Create invoices with your business details, logo, customer information, labor, materials, quantities, rates, taxes, discounts, payment terms, and notes - Create estimates and quotes before work begins, then convert an approved estimate into an invoice without retyping anything - Create receipts - Preview every document, export it as a PDF, and share it by email, text message, WhatsApp, or any other app on your device - Mark invoices as paid or unpaid and see what still needs attention - Save customers, products, and services to reuse on future jobs - Choose from a variety of templates - Work on iPhone or iPad, with a sidebar and roomier layout on iPad HOW IT WORKS 1. Add your business details and logo. 2. Add a customer and your line items: labor, materials, services. 3. Preview the document, export a PDF, and send it. 4. Mark it paid when the money arrives. FROM QUOTE TO FINAL INVOICE Send an estimate before the job. When the customer approves, convert it to an invoice in one tap. Customer details and line items carry over, so you only enter them once. COMMON USES - Invoice a customer right after a completed job - Send a quote or estimate before work starts - Create PDF invoices and receipts - Track paid and unpaid invoices - Reuse saved customers and services for repeat work - Handle billing for contractor or freelance work FREE TO TRY, PREMIUM TO UNLOCK MORE Invoice Maker is free to download. Share, save and print every client-ready document. Unlimited invoices. FAQ What is Invoice Maker used for? Creating invoices, estimates, quotes, receipts, and PDF billing documents for small businesses, contractors, and freelancers. Is it good for contractors? Yes. Add labor, materials, services, taxes, discounts, and payment terms to invoices and estimates, and turn approved estimates into invoices. Is it a full accounting app? No. It focuses on invoicing and estimates, and on tracking paid and unpaid work. Can I send invoices as PDFs? Yes. Preview, export, and share them by email, text, WhatsApp, or other apps. Does it work on iPad? Yes. Invoice Maker is optimized for iPhone and iPad. SUBSCRIPTION INFORMATION Premium is available as a weekly, monthly, or annual auto-renewing subscription. Prices are shown in the app before you subscribe. Payment is charged to your Apple ID account at confirmation of purchase. Your subscription renews automatically unless you cancel at least 24 hours before the end of the current period. You can manage or cancel it in your Apple ID account settings after purchase. Privacy Policy: https://the-invoice-machine.web.app/legal/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Less paperwork. More time for your business.

Screenshots

SCAN ACE · PDF Scanner App4 screens
Invoice Maker・Estimate App4 screens

Verdict

The call

The clearest difference is ratings volume: SCAN ACE · PDF Scanner App at 39K against Invoice Maker・Estimate App's 201. SCAN ACE · PDF Scanner App also leads on review sentiment (87% vs 67%) and chart position (#175 vs unranked). Invoice Maker・Estimate App's advantage is update cadence (every 3 days vs fortnightly). On price, rating, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SCAN ACE · PDF Scanner App sells 10 in-app purchases, starting at $2.99 per month and Invoice Maker・Estimate App sells 4 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for SCAN ACE · PDF Scanner App against 4.9 for Invoice Maker・Estimate App. That said, the two scores are not equally well evidenced: SCAN ACE · PDF Scanner App has 39K ratings behind it against 201, so its average is the more settled of the two. Written reviews are what separate them: 87% of SCAN ACE · PDF Scanner App's written reviews are positive against 67% of Invoice Maker・Estimate App's.

UpkeepUpdate frequency

SCAN ACE · PDF Scanner App ships an update fortnightly, Invoice Maker・Estimate App every 3 days. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

Scorecard4 real differences · 7 level
SCAN ACE · PDF Scanner App versus Invoice Maker・Estimate App: the parameters behind the verdict, then further details
ParameterSCAN ACE · PDF Scanner AppInvoice Maker・Estimate App
PriceFreeFree
Rating4.8 (39K ratings)4.9 (201 ratings) — better
Positive reviews86.8% of reviews — better66.7% of reviews
Number of ratings39K — better201
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionSubscription
Best chart rank#175 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size126 MB18 MB
Age rating4+4+
DeveloperNEO PIXEL LABS PTE. LTD.Dynamic Falcon

Customer experience

SCAN ACE · PDF Scanner App

All ratings39,124 ratings
Positive96.7%
Neutral1.1%
Negative2.2%
Written reviews1,999 reviews
Positive86.8%
Neutral3.5%
Negative9.8%

Invoice Maker・Estimate App

All ratings201 ratings
Positive97.5%
Neutral0.5%
Negative2.0%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

SCAN ACE · PDF Scanner App

Reported bugs

3 issues
  • Crashes or freezes during use
  • Issues with batch scanning and document processing
  • Problems with exporting or sharing scanned documents

Requested features

4 requests
  • Restore folder organization and management
  • Improve cloud storage integration and sync
  • Add more customization options for file naming and organization
  • Enhance multi-page scanning and editing capabilities

Invoice Maker・Estimate App

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

SCAN ACE · PDF Scanner App

Subscriptions10
  • Premium Plan - Monthly3 Days trial$2.991 Month
  • Premium Plan - Weekly3 Days trial$4.997 Days
  • Premium Plan - Weekly$4.997 Days
Show 7 more
  • Premium Plan - Weekly3 Days trial$5.997 Days
  • Premium Plan - Monthly$9.991 Month
  • Premium Plan - Weekly7 Days trial$9.997 Days
  • Premium Plan - Yearly$19.991 Year
  • Premium Plan - Yearly1 Year trial$29.991 Year
  • Premium Plan - Yearly$29.991 Year
  • Premium Plan - Yearly$49.991 Year
4 purchases

Invoice Maker・Estimate App

Subscriptions4
  • Estimates & Invoices Maker Weekly$5.997 Days
  • Create Invoices On-site with trial3 Days trial$5.997 Days
  • Create Invoice Templates Monthly$9.991 Month
Show 1 more
  • Simple Invoices Generator Annually$99.991 Year

Questions

Is SCAN ACE · PDF Scanner App free?
SCAN ACE · PDF Scanner App is free to download, with in-app purchases available.
Is Invoice Maker・Estimate App free?
Invoice Maker・Estimate App is free to download, with in-app purchases available.
Which has better reviews, SCAN ACE · PDF Scanner App or Invoice Maker・Estimate App?
Invoice Maker・Estimate App is rated higher. SCAN ACE · PDF Scanner App averages 4.8 out of 5 from 39K ratings, while Invoice Maker・Estimate App averages 4.9 from 201 ratings.
Do SCAN ACE · PDF Scanner App or Invoice Maker・Estimate App have ads?
Neither SCAN ACE · PDF Scanner App nor Invoice Maker・Estimate App shows ads.
Which is updated more often, SCAN ACE · PDF Scanner App or Invoice Maker・Estimate App?
SCAN ACE · PDF Scanner App ships an update fortnightly, and Invoice Maker・Estimate App every 3 days. Most recently, SCAN ACE · PDF Scanner App was updated on October 24, 2026 and Invoice Maker・Estimate App on October 22, 2026.

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