Comparison

QR Code vs Humidity Calc

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

Head to head
About

QR Code

Features
Read full description

QR Code : Barcode Scanner makes it easy to scan and create QR codes and barcodes in one place. Scan QR codes, barcodes, documents, pages, and text instantly using your camera, or scan directly from photos. Use OCR to extract text from images, scan pages to PDF, and quickly access your previous scans with saved scan history. Create QR codes for websites, text, email, contacts, Wi-Fi, SMS, locations, and popular social platforms like WhatsApp, Facebook, Instagram, and Snapchat. Create and scan multiple barcode formats, including PDF417, Aztec, UPC, EAN, Code 39, Code 93, and Code 128 - with simple tools designed for quick everyday scanning. SCAN QR CODES & BARCODES Quickly scan different types of QR codes and barcodes using your camera or an image from your photos. • Scan QR codes instantly • Scan barcodes with your camera • Scan QR codes and barcodes from photos • Read product and digital codes • Scan documents and pages • Extract text from images with OCR SCAN DOCUMENTS & TEXT Turn your phone into a handy document and text scanner. Scan pages and extract text from images using OCR, making it easier to work with information captured by your camera. • Scan documents • Scan pages to PDF • Extract text from images • Use OCR to recognize text CREATE QR CODES & BARCODES Create QR codes and barcodes for different types of information. Enter your details, generate a code, and share or use it whenever you need. Create QR codes for: • Website & URL • Text • Email • Contacts • Wi-Fi • SMS • Location You can also create codes for popular social platforms, including WhatsApp, Facebook, Instagram, and Snapchat. MULTIPLE BARCODE FORMATS Scan and work with a variety of barcode formats, including: • PDF417 • Aztec • UPC • EAN • Code 39 • Code 93 • Code 128 Keep Your Scan History: Your previous scans can be saved in history, making it easy to find and access scanned information again without scanning the same code repeatedly. Everything is organized into quick tools so you can easily choose what you need - QR code scanner, barcode scanner, document scanner, or text scanner. Scan smarter with QR Code : Barcode Scanner. Scan codes, read information, create QR codes and barcodes, extract text, and keep your scan history all in one convenient app. Privacy Policy: https://enviinfotech.xyz/QRCodeScannerPrivacyPolicy.html Term & Conditions: https://enviinfotech.xyz/QRCodeScanneTermConditions.html EULA: https://enviinfotech.xyz/QRCodeScanneEULA.html

About

Humidity Calc

Features
Read full description

【Calculate Theoretical Relative Humidity】 A humidity calculation app for managing indoor humidity and checking humidifier performance. Calculate the theoretical indoor relative humidity from the outdoor temperature, outdoor relative humidity, and your indoor temperature. By comparing the calculated value with your hygrometer reading, you can estimate humidification performance and determine when a humidifier filter may need replacement. This app does not measure humidity. 【Key Features】 • Calculate theoretical indoor relative humidity • Compare calculated and measured humidity • Check humidifier performance • Estimate humidifier filter deterioration and replacement timing • Support daily indoor humidity management 【Recommended For】 • Users of evaporative humidifiers • Anyone who wants to check humidifier performance • Anyone who wants to know when to replace a humidifier filter • People managing indoor humidity during dry seasons • Anyone who wants to compare theoretical and measured humidity 【What Is Theoretical Relative Humidity?】 This app calculates the theoretical indoor relative humidity by converting outdoor relative humidity based on the amount of water vapor and applying the indoor temperature. Comparing the theoretical value with your hygrometer reading helps you evaluate humidifier performance and estimate whether the filter has lost efficiency. Ideal for users who want a simple way to monitor indoor humidity and maintain humidifier performance.

Screenshots

QR Code4 screens
Humidity Calc3 screens

Verdict

The call

The clearest difference is in-app purchases: Humidity Calc at none against QR Code's 5. QR Code's advantage is iOS requirement (15.4 vs 17.6). On price, update cadence, ads 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

Both are free to download. QR Code sells 5 in-app purchases, starting at $4.99 per 7 days. Humidity Calc asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
QR Code versus Humidity Calc: the parameters behind the verdict, then further details
ParameterQR CodeHumidity Calc
PriceFreeFree
Update frequencyEvery 3 weeksEvery 3 weeks
AdsYesYes
In-app purchasesYesNo — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.4 — better17.6
Further details — not scored
Size90 MB38 MB
Age rating4+4+
DeveloperDivyesh RajparaHiroaki Oosawa

In-app purchases

5 purchases

QR Code

Subscriptions5
  • Weekly Subscription3 Days trial$4.997 Days
  • Monthly Subscription$8.991 Month
  • Monthly Subscription3 Days trial$12.991 Month
Show 2 more
  • Monthly Subscription$12.991 Month
  • Yearly Subscription3 Days trial$19.991 Year
None

Humidity Calc

No in-app purchases

Questions

Is QR Code free?
QR Code is free to download, with in-app purchases available.
Is Humidity Calc free?
Humidity Calc is free to download, with no in-app purchases.
Do QR Code or Humidity Calc have ads?
Both QR Code and Humidity Calc show ads.
Which is updated more often, QR Code or Humidity Calc?
QR Code ships an update every 3 weeks, and Humidity Calc every 3 weeks. Most recently, QR Code was updated on October 30, 2026 and Humidity Calc on October 31, 2026.

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