Comparison

Simple Temperature vs QR Reader * Barcode Scanner

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

Head to head
About

Simple Temperature

Easily convert temperatures between Fahrenheit and Celsius with this straightforward utility. Simply input a value and tap to see the converted result instantly. It's designed for speed and simplicity.

Highlights
  • Fahrenheit to Celsius conversion
  • Celsius to Fahrenheit conversion
  • Instant conversion on tap
  • Simple user interface
  • Fast performance
Features
Read full description

Convert temperatures from Fahrenheit to Celsius and Celsius to Fahrenheit simply and easily. You can enter positive or negative numbers. In addition, see conversions to Kelvin and Rankine. Extremely simple and fast! Enter a number and tap to convert.

About

QR Reader * Barcode Scanner

Features
Read full description

QR Reader - Barcode Scanner is a fast, modern QR & barcode scanner with history, batch mode, exports, and smart actions. SCAN ANYWHERE with QR Reader - Barcode Scanner • QR codes + major barcode formats: EAN-13/8, UPC-A/E, Code128/39/93, Codabar, Data Matrix, Aztec, PDF417, ITF-14 • Torch control + haptic & sound feedback SMART RESULTS • Open links, copy content, or share instantly • Wi-Fi QR: view SSID/password and jump to settings • vCard/MeCard: save contacts in one tap • Calendar codes: add events to your calendar • Geo codes: open coordinates in Maps ORGANIZE YOUR SCANS • Full scan history with search in QR Reader - Barcode Scanner • Favorites • Folders for better organization • Export your history to CSV or JSON PRODUCT & BOOK LOOKUP • Lookup product info from barcodes (name, brand, images and more when available) • Identify ISBN books and fetch title/author/cover when available • Quick price-compare shortcuts to popular retailers CREATE QR CODES in QR Reader - Barcode Scanner • Generate QR codes for URL, Text, Wi-Fi, Email, Phone, SMS, vCard, and Location • Save to Photos or share • Pro unlocks advanced customization options Notes: Internet is required for product/book lookup and online search actions. App features may vary by region and device. Thanks for using QR Reader - Barcode Scanner. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://qrreaderscanner.web.app/privacy-policy.html

Screenshots

Simple Temperature4 screens
QR Reader * Barcode Scanner4 screens

Verdict

The call

The clearest difference is price: QR Reader * Barcode Scanner at Free against Simple Temperature's $0.99. QR Reader * Barcode Scanner also leads on update cadence (weekly vs every 12 months). Simple Temperature's advantage is in-app purchases (none vs 3). On 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

QR Reader * Barcode Scanner is free to download; Simple Temperature costs $0.99 up front. QR Reader * Barcode Scanner sells 3 in-app purchases, starting at $0.99 per 7 days. Simple Temperature asks for nothing beyond the download.

UpkeepUpdate frequency

Simple Temperature ships an update every 12 months, QR Reader * Barcode Scanner weekly. The most recent releases landed on September 30, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 7 level
Simple Temperature versus QR Reader * Barcode Scanner: the parameters behind the verdict, then further details
ParameterSimple TemperatureQR Reader * Barcode Scanner
Price$0.99Free — better
Rating4.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 12 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size1 MB43 MB
Age rating4+4+
DeveloperJoseph PalmerONLINE CLINIC YAZILIM LIMITED SIRKETI

In-app purchases

None

Simple Temperature

No in-app purchases

3 purchases

QR Reader * Barcode Scanner

Subscriptions3
  • QR Pro Weekly3 Days trial$0.997 Days
  • QR Pro Monthly$2.991 Month
  • QR Pro Yearly$19.991 Year

Questions

Is Simple Temperature free?
Simple Temperature costs $0.99, with no in-app purchases.
Is QR Reader * Barcode Scanner free?
QR Reader * Barcode Scanner is free to download, with in-app purchases available.
Do Simple Temperature or QR Reader * Barcode Scanner have ads?
Neither Simple Temperature nor QR Reader * Barcode Scanner shows ads.
Which is updated more often, Simple Temperature or QR Reader * Barcode Scanner?
Simple Temperature ships an update every 12 months, and QR Reader * Barcode Scanner weekly. Most recently, Simple Temperature was updated on September 30, 2026 and QR Reader * Barcode Scanner on September 10, 2026.

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