Comparison

12Calendar vs One Touch Alarm Clock

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

Head to head
About

12Calendar

Customize your lock screen with a calendar. Choose from various layouts, fonts, and colors to display your schedule conveniently. Add custom holidays by importing from your device's calendar.

Highlights
  • Customizable calendar layouts
  • Selectable fonts and colors
  • Adjustable transparency and frame borders
  • Add custom holiday data
  • Import holidays from iOS calendar
  • Display year, month, and day of the week
Read full description

Every time you open your lock screen, a beautiful calendar is right there to greet you. That's the everyday experience 12Calendar creates. Customize fonts, colors, and layouts to build a calendar wallpaper that's uniquely yours — simply and easily. ■ Layouts Choose from 28 calendar layouts. Free Layout mode lets you drag and resize each calendar freely. - You can change the size from the popup that appears when you tap the calendar. ■ Customize Every Detail - Individual color settings for weekdays, Saturdays, and Sundays - Day-of-week display language - 12 fonts with adjustable text size - Background opacity and border visibility - Week start day (Sunday or Monday) ■ Holiday Support Add holidays manually within the app. With an in-app purchase, holidays can be imported from your iOS Calendar. ■ How to Set Your Wallpaper After saving your calendar, set it as your wallpaper via the Photos app or iOS Settings. (Wallpaper cannot be changed directly from within this app.) ※ App Store screenshots were created using Screenshots.pro.

About

One Touch Alarm Clock

This intuitive alarm clock app allows you to set alarms in just two seconds with a unique analog clock interface. Customize your wake-up experience with your favorite music or preset sounds, and enjoy features like snooze, vibration, and fade-in alarms. It also includes a sleep timer for relaxing evenings.

Highlights
  • Set alarm in two seconds
  • Customizable music alarms
  • Snooze function
  • Vibration and fade-in options
  • Sleep timer
  • 12/24 hour format
Features
Read full description

Set the alarm time in just two seconds. This simple alarm clock app has been designed for maximum ease of use. Set your favorite music as your alarm and wake up happy! ALARM FUNCTIONS: - Snooze (3 - 30 minutes) - Vibration - Fade in alarm OTHER FEATURES: - Sleep timer (sleep music) - 12 hour and 24 hour time format - Vertical and horizontal modes MORNING: Use music of your choice or select one of the preset alarms to wake up happy and smiling. EVENING: Relax and fall asleep to the sound of your favorite song or one of the preset sleep music. APP FEATURES: Unique and intuitive interface is easy to use: launch the app and have your alarm ready in just two seconds. WHY WE DEVELOPED THIS APP: There are many alarm clock apps found on the App Store today. However, most of these require the user to tap through numerous screens just to set an alarm. Also, most of these apps use a built-in widget for the interface, making it hard to interact with them intuitively. If you find yourself regularly changing your alarm time, the existing apps out there are a real pain. That's why we developed this new app, which uses an analog clock for inspiration.

Screenshots

12Calendar4 screens
One Touch Alarm Clock4 screens

Verdict

The call

The clearest difference is rating: One Touch Alarm Clock at 4.5 against 12Calendar's 3.2. One Touch Alarm Clock also leads on in-app purchases (none vs 4) and ratings volume (11K vs 11). 12Calendar's advantage is ads (none vs shown) and update cadence (every 3 months vs every 12 months). On price 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. 12Calendar sells 4 one-off in-app purchases. One Touch Alarm Clock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

One Touch Alarm Clock holds the better App Store score, 4.5 against 3.2. That said, the two scores are not equally well evidenced: One Touch Alarm Clock has 11K ratings behind it against 11, so its average is the more settled of the two. Written reviews complicate that: 62% of 12Calendar's written reviews are positive against 53% of One Touch Alarm Clock's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

12Calendar ships an update every 3 months, One Touch Alarm Clock every 12 months. The most recent releases landed on October 23, 2026 and November 1, 2026 respectively.

Scorecard8 real differences · 2 level
12Calendar versus One Touch Alarm Clock: the parameters behind the verdict, then further details
Parameter12CalendarOne Touch Alarm Clock
PriceFreeFree
Rating3.2 (11 ratings)4.5 (11K ratings) — better
Positive reviews61.5% of reviews — better52.9% of reviews
Number of ratings1111K — better
Update frequencyEvery 3 months — betterEvery 12 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS17.012.3 — better
Further details — not scored
Size3 MB24 MB
Age rating4+4+
DeveloperlagoonHANBUNCO, INC.

Customer experience

12Calendar

All ratings11 ratings
Positive45.5%
Neutral18.2%
Negative36.4%
Written reviews65 reviews
Positive61.5%
Neutral20.0%
Negative18.5%

One Touch Alarm Clock

All ratings10,564 ratings
Positive88.1%
Neutral4.4%
Negative7.5%
Written reviews448 reviews
Positive52.9%
Neutral10.0%
Negative37.1%

Bugs and requests

12Calendar

Not enough reviews yet to summarise bugs or requests.

One Touch Alarm Clock

Reported bugs

4 issues
  • Alarm not going off
  • Alarm canceling itself
  • App freezing or crashing
  • Unable to change alarm time

Requested features

4 requests
  • Ability to set multiple alarms
  • Custom alarm sounds
  • Vibrate-only option
  • Ability to adjust alarm volume

In-app purchases

4 purchases

12Calendar

One-time4
  • UpgradeFree
  • Hide Logo & SAVE available$0.99
  • Enable load calendar$0.99
Show 1 more
  • Clear all functional limitation$1.99
None

One Touch Alarm Clock

No in-app purchases

Questions

Is 12Calendar free?
12Calendar is free to download, with in-app purchases available.
Is One Touch Alarm Clock free?
One Touch Alarm Clock is free to download, with no in-app purchases.
Which has better reviews, 12Calendar or One Touch Alarm Clock?
One Touch Alarm Clock is rated higher. 12Calendar averages 3.2 out of 5 from 11 ratings, while One Touch Alarm Clock averages 4.5 from 11K ratings.
Do 12Calendar or One Touch Alarm Clock have ads?
One Touch Alarm Clock shows ads; 12Calendar does not.
Which is updated more often, 12Calendar or One Touch Alarm Clock?
12Calendar ships an update every 3 months, and One Touch Alarm Clock every 12 months. Most recently, 12Calendar was updated on October 23, 2026 and One Touch Alarm Clock on November 1, 2026.

Other comparisons