Comparison

Calculator with camera vs QR Preview

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

Head to head
About

Calculator with camera

Features
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The video taken with the front camera will be displayed at the top of the calculator. Even when calculating with a calculator, user can monitor surroundings to see if anyone is looking at the calculator from behind.

About

QR Preview

Features
Read full description

QR Preview helps you scan and create QR codes with more control and less guesswork. Instead of opening links immediately, the app shows you what is inside a QR code first, then highlights suspicious patterns so you can decide what to do next. Use QR Preview to: Scan QR codes with your camera. Read QR codes from photos and screenshots. Preview links before opening them. Create QR codes for websites, text, Wiโ€‘Fi, contacts, email, and more. Copy, share, or save scanned results. Keep a local history of your scans and created codes. If a QR code contains a website, QR Preview shows the full destination and checks for signals that may deserve a closer look, such as shortened links, unusual characters, insecure HTTP, or other suspicious patterns. The app is designed to help you review a link before you open it, not to make unverifiable safety guarantees. Privacy comes first: No account required. No ads. No tracking. Your scans and history stay on your device unless you choose to share something yourself. QR Preview is built for everyday utility: Fast camera scanning. Clean preview before action. Useful QR creation tools. A calm, simple interface focused on clarity. Whether you are scanning a code on a poster, package, menu, website, or screenshot, QR Preview gives you a better look before you tap.

Screenshots

Calculator with camera1 screens
QR Preview4 screens

Verdict

The call

The clearest difference is price: Calculator with camera at Free against QR Preview's $1.99. QR Preview's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Calculator with camera is free to download; QR Preview costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences ยท 4 level
Calculator with camera versus QR Preview: the parameters behind the verdict, then further details
ParameterCalculator with cameraQR Preview
PriceFree โ€” better$1.99
Update frequencyEvery 2 weeksโ€”
AdsYesNo โ€” better
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.8.3 โ€” better16.0
Further details โ€” not scored
Size35 MB2 MB
Age rating4+4+
DeveloperHideaki UchikoshiLuan Cu Xuan

In-app purchases

None

Calculator with camera

No in-app purchases

None

QR Preview

No in-app purchases

Questions

Is Calculator with camera free?
Calculator with camera is free to download, with no in-app purchases.
Is QR Preview free?
QR Preview costs $1.99, with no in-app purchases.
Do Calculator with camera or QR Preview have ads?
Calculator with camera shows ads; QR Preview does not.

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