Comparison

Alarmium vs OnTime Clock

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

Head to head
About

Alarmium

Features
Read full description

Alarmium is a modern alarm app offering an elegant and efficient alarm experience. Stop setting multiple alarms just to be on time. With Clustered Alarms, schedule several alarms at once with a single tap. Stay on track during your commute with Geo Alarms, which notify you as you approach your destination—no matter how your route changes. Using Geo Triggers, you can add multiple locations to a single alarm and get alerted when you’re near any of them. Simple, elegant, and reliable, Alarmium helps you focus on your day—not your alarms. And yes, it also shows the current time. Alarmium — alarms made easy. ⏰

About

OnTime Clock

Features
Read full description

OnTime Clock — Always rings. Never late. 【6 Alarm Types】 • Standard Alarm: Daily reminders at fixed times • Fixed Alarm: One-time reminder for a specific date • Quick Alarm: Countdown timer, rings in minutes • Habit Alarm: Multiple reminders for one task, build good habits • Location Alarm: Auto check-in at work, reminders when leaving home • Hourly Chime: Automatic time announcement every hour 【Habit Building】 • Medication, water, exercise — never miss multiple daily reminders • 30+ habit templates, add with one tap • 20+ motivational quotes displayed randomly 【Smart Features】 • Auto-skip holidays, rings only on workdays • Regional holiday database for Greater China • Home screen widget shows your next alarm at a glance • Dynamic Island displays countdown in real time 【Native iOS 26 Experience】 • Built on AlarmKit — rings even on silent or locked screen • Liquid Glass design — smooth and beautifully native 【Privacy First】 • All data stored locally on your device • No network, no tracking, no ads, no in-app purchases • Free forever

Screenshots

Alarmium4 screens
OnTime Clock4 screens

Verdict

The call

The clearest difference is in-app purchases: OnTime Clock at none against Alarmium's 2. Alarmium's advantage is update cadence (every 8 days vs every 2 months). On price, 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

Both are free to download. Alarmium sells 2 one-off in-app purchases. OnTime Clock asks for nothing beyond the download.

UpkeepUpdate frequency

Alarmium ships an update every 8 days, OnTime Clock every 2 months. The most recent releases landed on October 28, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 4 level
Alarmium versus OnTime Clock: the parameters behind the verdict, then further details
ParameterAlarmiumOnTime Clock
PriceFreeFree
Update frequencyEvery 8 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad — betteriPhone
Requires iOS26.026.0
Further details — not scored
Size8 MB18 MB
Age rating4+4+
DeveloperRavindu Wataketiya文巧 刘

In-app purchases

2 purchases

Alarmium

One-time2
  • Alarmium Essentials$4.99
  • Alarmium Plus$9.99
None

OnTime Clock

No in-app purchases

Questions

Is Alarmium free?
Alarmium is free to download, with in-app purchases available.
Is OnTime Clock free?
OnTime Clock is free to download, with no in-app purchases.
Do Alarmium or OnTime Clock have ads?
Neither Alarmium nor OnTime Clock shows ads.
Which is updated more often, Alarmium or OnTime Clock?
Alarmium ships an update every 8 days, and OnTime Clock every 2 months. Most recently, Alarmium was updated on October 28, 2026 and OnTime Clock on October 11, 2026.

Other comparisons