Comparison

QR Code Scanner vs Calenn | Calendar at a Glance

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

Head to head
About

QR Code Scanner

This app quickly and accurately scans QR codes and barcodes using your iPhone camera. It features autofocus, a scan history, and the ability to read codes from photos or in low light conditions.

Highlights
  • Reads QR codes/barcodes in 0.1 seconds
  • Autofocus function
  • Automatic scan history saving
  • Reads from photo albums
  • Reads in dark places
Features
Read full description

Official Japanese-made QR code reader Accurately reads QR codes/barcodes in just 0.1 seconds. Anyone can use it automatically and easily by simply holding up the iPhone camera. <Main features> - Autofocus function works even with camera shake - Automatically saves scan history - Can read from photo albums - Can read in dark places

About

Calenn | Calendar at a Glance

Features
Read full description

【Essential Features, Refined to Perfection】 ・Ultra-smooth event creation, editing, and deletion ・Switch instantly between monthly, weekly, and daily views ・List view to see all your events at a glance ・Search to quickly find any saved event ・Full integration with Google Calendar and iCloud ・Quickly move or duplicate events with intuitive drag-and-drop. ・Automatic color display by calendar (based on Apple/Google settings) ・Customize the app’s overall color theme ・Open Apple Maps or Google Maps directly from events ・Set the display order of multiple calendars freely ・Widget support (Monthly Calendar — Color/Simple, Upcoming Event) ・Shortcuts app integration to automate routine actions ・iPad support with a layout optimized for the larger screen → One calendar for work, personal, and everything in between. → No unnecessary features. Just an elegant, focused experience. ■ Smart Event Management ・Tap any event to open a sheet view for instant detail and editing ・Easily manage even the busiest days ・Set custom priority order for calendars (e.g. work > personal > shared) ・Instantly toggle between monthly, weekly, and daily views ■ See All Your Events in List View ・A new list view shows your events in chronological order ・Switch between calendar and list view with a single tap ・Get an overview of your schedule days or weeks ahead ■ Quick and Powerful Search ・Just type a keyword to instantly find your saved events ・Search across titles, notes, and locations — not just titles ・Jump to any event, past or future, in seconds ■ Cloud Integration ・Works seamlessly with iCloud, Exchange, and Google accounts via iOS Calendar ・All settings are saved in iCloud—no need to reconfigure after device changes ■ Move & Duplicate Events with Drag & Drop ・You can long-press an event to move ■ Make It Your Own ・Calendar color display  ・By default, adopts calendar colors from Apple/Google Calendar  ・Premium users can apply pale, vivid, and other color styles for a personalized look ・Customize the app’s color theme freely ・Dark mode support for comfort ■ Widget Support ・Monthly Calendar (Color): Shows color dots on each day so you can gauge busyness at a glance ・Monthly Calendar (Simple): A clean month view with only the essentials ・Upcoming Event: Displays the next event starting soon ■ Shortcuts Support ・Works with the iOS Shortcuts app ・Automate your most-used actions for smoother daily scheduling ■ Built for Global Users ・Fully supports Japanese and English UI ・Choose from holiday calendars for various countries ・Week start day adjusts automatically based on iOS regional settings ■ On iPhone and iPad ・Calenn now supports iPad, with a layout optimized for the larger screen ・Monthly, weekly, daily, and list views all feel right at home on a bigger display ・Settings are saved in iCloud, so your setup carries over between iPhone and iPad ・Drag-and-drop feels even more natural with the extra room to work ■ Go Premium for Even More ・Customize event colors with pale, vivid, and other styles ・Unlock 2-day, 3-day, 4-day, 5-day, and 6-day views ・Change the entire app’s color theme ・Enjoy an ad-free experience □ Privacy Policy https://calenn.hibit-studio.com/app-privacy/ □ Terms of Use (EURA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

QR Code Scanner3 screens
Calenn | Calendar at a Glance4 screens

Verdict

The call

The clearest difference is in-app purchases: QR Code Scanner at none against Calenn | Calendar at a Glance's 2. QR Code Scanner also leads on iOS requirement (16.0 vs 26.0). 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. Calenn | Calendar at a Glance sells 2 in-app purchases, starting at $3.99 per month. QR Code Scanner asks for nothing beyond the download.

UpkeepUpdate frequency

QR Code Scanner ships an update every 10 days, Calenn | Calendar at a Glance every 2 weeks. Both last shipped on November 8, 2026.

Scorecard2 real differences · 6 level
QR Code Scanner versus Calenn | Calendar at a Glance: the parameters behind the verdict, then further details
ParameterQR Code ScannerCalenn | Calendar at a Glance
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 10 days — betterEvery 2 weeks
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better26.0
Further details — not scored
Size37 MB21 MB
Age rating4+4+
Developermirai satoKoya Hirose

In-app purchases

None

QR Code Scanner

No in-app purchases

2 purchases

Calenn | Calendar at a Glance

Subscriptions2
  • Monthly Plan$3.991 Month
  • Annual Plan$39.991 Year

Questions

Is QR Code Scanner free?
QR Code Scanner is free to download, with no in-app purchases.
Is Calenn | Calendar at a Glance free?
Calenn | Calendar at a Glance is free to download, with in-app purchases available.
Do QR Code Scanner or Calenn | Calendar at a Glance have ads?
Both QR Code Scanner and Calenn | Calendar at a Glance show ads.
Which is updated more often, QR Code Scanner or Calenn | Calendar at a Glance?
QR Code Scanner ships an update every 10 days, and Calenn | Calendar at a Glance every 2 weeks. Most recently, QR Code Scanner was updated on November 8, 2026 and Calenn | Calendar at a Glance on November 8, 2026.

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