Comparison

QR Scanner # vs Plumbline Studio

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

Head to head
About

QR Scanner #

Easily create and scan QR codes for various purposes, including WiFi, contact information, social media, and URLs. Generate codes for events, plain text, and more, with the ability to clone scanned codes.

Highlights
  • Create QR codes
  • Scan QR codes
  • Manage QR codes
  • Clone scanned QR codes
  • Generate WiFi QR codes
  • Generate contact (vCard/MeCard) QR codes
  • Generate social media QR codes
  • Generate URL QR codes
Features
Read full description

Main features: ◉ Create QR code ◉ Manage QR code ◉ Scan QR code ◉ Especially allow you to clone a QR code from scanning then saving to your phone for other purposes Support to generate many QR Code types: ◉ Wifi: for your friends and family easily to connect to your home network, or for guests to access your business WiFi with a simple scan of this QR Code ◉ VCard ◉MeCard: for you to share your email address, phone number, website URL and your company details instantly with a simple scan of a vCard Code ◉ Social Networks: easier for you to connect with your customers online. Use one QR Code to display Facebook, Twitter, Youtube, LinkedIn, and many more social channels. ◉ Location: easier for your sharing and checking location by QR code ◉ SMS: compose a text message to speed up the process of receiving text messages from your audience with a predefined text message sent to a target phone number ◉ Email: support you add a subject line, predefined email text, and a target email address for you to receive the email ◉ Phone: make a call immediately ◉ URL: instantly open any page on the web ◉ Plain Text: display up to 300 characters and the chance to offer your customers any message in any language, regardless of internet access ◉ Event QR: easily to make and share event marketing and planning

About

Plumbline Studio

Features
Read full description

Plumbline Studio turns your iPhone into a focused measurement bench for carpenters, remodelers, inspectors, installers, and careful homeowners. Use it when you need a level, plumb check, protractor, slope calculator, flatness scan, or trade math without opening a pile of separate utilities. Core tools: - Live bubble level with tap-to-zero calibration - Dual-axis bullseye readout for cabinets, benches, shelves, and trim - AR-style plumb planning view for checking vertical alignment - Protractor and inclinometer with hold-to-lock angle capture - Slope calculator with rise, run, degrees, percent grade, and ratio - Stair, rafter, crown, board-foot, and cut-list helpers - Flatness scan for spotting dips and bumps across a surface - Project journal for saved measurements, notes, client names, and locations Plumbline Studio is built around practical job flow. Take a reading, lock it, copy it, save it to a project, and keep moving. The interface is designed for repeated work in a shop, basement, garage, or jobsite, not for a one-time novelty measurement. The app stores projects locally on your device. Camera and photo access are used only when you choose to attach a reference image to a measurement.

Screenshots

QR Scanner #4 screens
Plumbline Studio4 screens

Verdict

The call

The clearest difference is price: QR Scanner # at Free against Plumbline Studio's $0.99. QR Scanner # also leads on iOS requirement (13.0 vs 17.0). Plumbline Studio's advantage is ads (none vs shown) and update cadence (every 10 days vs every 5 weeks). On in-app purchases and device support 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

QR Scanner # is free to download; Plumbline Studio costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

QR Scanner # ships an update every 5 weeks, Plumbline Studio every 10 days. Both last shipped on October 24, 2026.

Scorecard4 real differences · 5 level
QR Scanner # versus Plumbline Studio: the parameters behind the verdict, then further details
ParameterQR Scanner #Plumbline Studio
PriceFree — better$0.99
Rating4.7 (30 ratings) — better—
Number of ratings30 — better—
Update frequencyEvery 5 weeksEvery 10 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size16 MB3 MB
Age rating4+4+
DeveloperKhang LeRobert Corbin

In-app purchases

None

QR Scanner #

No in-app purchases

None

Plumbline Studio

No in-app purchases

Questions

Is QR Scanner # free?
QR Scanner # is free to download, with no in-app purchases.
Is Plumbline Studio free?
Plumbline Studio costs $0.99, with no in-app purchases.
Do QR Scanner # or Plumbline Studio have ads?
QR Scanner # shows ads; Plumbline Studio does not.
Which is updated more often, QR Scanner # or Plumbline Studio?
QR Scanner # ships an update every 5 weeks, and Plumbline Studio every 10 days. Most recently, QR Scanner # was updated on October 24, 2026 and Plumbline Studio on October 24, 2026.

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