Comparison

QR Scanner vs VoltSizer

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

Head to head
About

QR Scanner

This utility app allows you to scan and generate QR codes and barcodes. It also converts images to PDFs and enables digital document signing, streamlining various daily tasks for both personal and professional use.

Highlights
  • QR code and barcode scanning
  • QR code and barcode creation
  • Image to PDF conversion
  • Digital document signing
  • User-friendly interface
Features
Read full description

In a world where technology is advancing rapidly, QR codes and barcodes have become an essential part of our daily lives. That’s where QR Scanner - Reader & Generator comes in, offering all-in-one solutions tailored to your needs. Key Features of the App: QR Code and Barcode Scanning: Effortlessly scan QR codes and barcodes for shopping, events, or work. QR Code Creation: Generate personalized QR codes for social media, Wi-Fi passwords, text, messages, and more. Barcode Creation: Design professional barcodes for your products or business. Convert Images to PDFs: Instantly turn your documents or photos into PDF files. Sign Documents: Approve and share your documents quickly with the digital signature feature. Who Is It For? Students: Easily convert assignments or projects into PDFs for quick sharing. Professionals: Save time by digitally signing documents and creating professional QR codes or barcodes. Retailers & Entrepreneurs: Share product information or add barcodes to items with ease. Social Media Enthusiasts: Create stylish QR codes to promote your social media accounts. Everyday Users: Share Wi-Fi credentials, send messages, or scan barcodes while shopping effortlessly. What Does It Bring to Your Life? Saves Time: Perform complex tasks in just seconds with easy and fast operation. Boosts Professionalism: Make your personal projects or business activities more organized and polished. Enhances Accessibility: A user-friendly interface ensures anyone can use the app with ease. Why Download It Now? This app is designed to make both your personal and professional life more convenient in the digital age. With QR Scanner - Reader & Generator, you’ll save time while accessing solutions tailored to your needs. Its intuitive interface turns even the most complex tasks into simple ones! Download it today to integrate technology into your life and experience the difference! QR Scanner - Reader & Generator: Your ultimate tool for making life more practical and efficient! https://swappyazilim.com/terms.html https://swappyazilim.com/privacy.html

About

VoltSizer

Features
Read full description

VoltSizer is a low-voltage DC cable sizing and electrical calculation app built for campervans, overland rigs, off-grid solar cabins, marine builds and mobile audio systems. Unlike basic voltage drop calculators that only look up wire gauges, it treats your DC installation as a full engineering project, combining cable physics, real connection losses and coordinated overcurrent protection. It performs full DC loop voltage drop calculations with chassis ground mode support, showing results at 20°C and elevated operating temperatures. Milliohm losses from crimp lugs, fuse holders, isolators and busbars are included so outputs match real multimeter readings. The tool picks compliant fuse ratings following the 1.25× continuous current rule and derated wire ampacity. It flags low-voltage shutdown risks for inverters, pumps and electronics, and assesses motor inrush without overspecifying copper. Organise multiple branch circuits with custom ambient temperature and bundling factors. Input equipment duty cycles to compute energy use and battery runtime, or simulate upgrades between 12 V, 24 V, 36 V and 48 V to find copper weight savings. Practical workshop utilities: calculate safe limits for leftover cable spools, find maximum compliant run length for a fixed wire gauge, view pass/fail gauge matrices with failure explanations, and quickly reference terminal studs, lugs and torque specs. Track commissioning checks including terminal torque and measured voltage drops. Auto-generate BOMs with cable lengths, copper weight and terminal counts, then export clean professional PDF specification sheets. Fully offline with no internet required. No accounts, sign-ins or tracking — all your project data stays local on your device.、

Screenshots

QR Scanner4 screens
VoltSizer4 screens

Verdict

The call

The clearest difference is in-app purchases: VoltSizer at none against QR Scanner's 10. VoltSizer also leads on ads (none vs shown). On price, 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

Both are free to download. QR Scanner sells 10 in-app purchases, starting at $0.99 per 7 days. VoltSizer asks for nothing beyond the download.

Scorecard2 real differences · 8 level
QR Scanner versus VoltSizer: the parameters behind the verdict, then further details
ParameterQR ScannerVoltSizer
PriceFreeFree
Rating3.5 (8 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 11 days—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.4 — better14.0
Further details — not scored
Size42 MB4 MB
Age rating+124+
DeveloperSWAPP YAZILIM LIMITED SIRKETIHimraj Singh

In-app purchases

10 purchases

QR Scanner

Subscriptions10
  • Qr Scanner - Weekly3 Days trial$0.997 Days
  • Qr Scanner - Monthly$2.991 Month
  • Qr Scanner - Weekly3 Days trial$3.997 Days
Show 7 more
  • Qr Scanner - Weekly3 Days trial$5.997 Days
  • Qr Scanner - Weekly3 Days trial$7.997 Days
  • Qr Scanner - Weekly3 Days trial$9.997 Days
  • Qr Scanner - Monthly$14.991 Month
  • Qr Scanner - Monthly$17.991 Month
  • Qr Scanner - Monthly$19.991 Month
  • Qr Scanner - Monthly$24.991 Month
None

VoltSizer

No in-app purchases

Questions

Is QR Scanner free?
QR Scanner is free to download, with in-app purchases available.
Is VoltSizer free?
VoltSizer is free to download, with no in-app purchases.
Do QR Scanner or VoltSizer have ads?
QR Scanner shows ads; VoltSizer does not.

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