Comparison

QR vs DueBy

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

Head to head
About

QR

Create and scan QR codes with this versatile generator. Save codes locally, share them as high-resolution PNGs or PDFs, and even add custom logos. Works offline on iPhone and iPad.

Highlights
  • Generate QR codes from text
  • Scan existing QR codes
  • Save and restore QR codes locally
  • Share as PNG or PDF
  • Add custom logo images
  • Create home screen widgets
  • Offline functionality
Features
Read full description

QR-Code generator is a flash-like QR code maker. Insert the message into a text field and receive the blazing result.  Save QR barcodes in a local database and restore it at any time. Works on iPhone and iPad. Doesn't need internet connection. Share or copy high resolution image in PNG format or PDF file. Paste into any document or message. Scan any QR code, get decoded result as a text, and reworked QR-code. No internet connection needed. QR code generator allows to produce QR widget from any QR generated code. QR code widgets are QR code symbols from your QR code generator app that you can choose to place on your home screen or Today view. New optional QR logo image is available . Select QR logo image from the gallery. Place QR logo image in the centre of the generated QR code. QR code is an abbreviated from Quick Response code. QR barcode has fast readability and greater storage capacity compared to standard UPC barcodes. QR codes produced with QR code generator may be used as a "touchless" system to display information, show menus, or provide updated consumer information. Using QR code generator restaurants can replace paper menus with QR barcode decals on the table, which opened an online menu.

About

DueBy

Create professional invoices quickly and efficiently from your phone. Manage client details, track payment statuses, and generate financial reports. Customize templates and support multiple currencies for global business.

Highlights
  • Create invoices in seconds
  • Share invoices via email/messaging
  • Monitor invoice statuses
  • Customize invoice templates
  • Generate financial reports
  • Multi-currency support
Features
Read full description

Need a simple and efficient way to manage invoices? This app is the ultimate tool for freelancers, small businesses, and entrepreneurs to create professional invoices in seconds—right from your phone! - Create invoices with minimal steps. Enter details, select a client, add an amount, and send. A fast and seamless invoicing experience. - Share invoices via email, messaging apps, or other platforms to ensure quick and smooth payment processing. - Monitor invoice statuses, including paid, pending, and overdue, to stay on top of your finances. - Customize invoice templates by editing colors, logos and fields to match the brand identity. - Generate financial reports with breakdowns by month, quarter, or year to track revenue and business performance. - Invoice clients worldwide with multi-currency support, selecting from major currencies like USD, EUR, and more. Invoice Maker simplifies the billing process, allowing you to focus on running and growing your business. Terms of Service: https://calledandrey.github.io/invoiceapp/terms.html Privacy Policy: https://calledandrey.github.io/invoiceapp/privacy.html Got questions or suggestions? Email us at invoiceappnet@gmail.com We’d love to hear your feedback!

Screenshots

QR4 screens
DueBy4 screens

Verdict

The call

The clearest difference is price: DueBy at Free against QR's $19.99. DueBy also leads on update cadence (every 10 days vs every 9 months). QR's advantage is in-app purchases (none vs 3). On review sentiment, ads, device support and iOS requirement 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

DueBy is free to download; QR costs $19.99 up front. DueBy sells 3 in-app purchases, starting at $5.99 per 7 days. QR asks for nothing beyond the download.

UpkeepUpdate frequency

QR ships an update every 9 months, DueBy every 10 days. The most recent releases landed on September 15, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 6 level
QR versus DueBy: the parameters behind the verdict, then further details
ParameterQRDueBy
Price$19.99Free — better
Rating—4.9 (47 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—47 — better
Update frequencyEvery 9 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.0 — better
Further details — not scored
Size1 MB13 MB
Age rating4+4+
DeveloperBinariver LTDCREATIVE TECHNOLOGIES LLC

Customer experience

QR

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

DueBy

All ratings47 ratings
Positive97.9%
Neutral2.1%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

QR

No in-app purchases

3 purchases

DueBy

Subscriptions3
  • Invoice Premium3 Days trial$5.997 Days
  • Invoice Premium$17.991 Month
  • Invoice Premium$69.991 Year

Questions

Is QR free?
QR costs $19.99, with no in-app purchases.
Is DueBy free?
DueBy is free to download, with in-app purchases available.
Do QR or DueBy have ads?
Neither QR nor DueBy shows ads.
Which is updated more often, QR or DueBy?
QR ships an update every 9 months, and DueBy every 10 days. Most recently, QR was updated on September 15, 2026 and DueBy on September 20, 2026.

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