SFClock vs Alarmium
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SFClock
This utility app displays a flip clock and calendar. It offers customizable clock settings like 12/24 hour format and seconds display. Users can navigate the calendar and choose from various light and dark color themes.
- Flip clock display
- Calendar view
- 12/24 hour format
- Seconds display toggle
- Calendar month navigation
- Color themes
- Light/dark mode
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SFClock is a simple flip clock and calendar App. Flip clock and calendar are displayed in portrait, and only clock in landscape. You can change 12/24 hours and seconds display of clock. You also can move month in calendar with the arrows, and back to current month by tapping the month title. There are many color themes, and you can choose a light or dark one to use.
Alarmium
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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. ⏰
Screenshots
Verdict
The clearest difference is in-app purchases: SFClock at none against Alarmium's 2. SFClock also leads on iOS requirement (17.0 vs 26.0). Alarmium's advantage is update cadence (every 8 days vs every 5 months). On price, 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
Both are free to download. Alarmium sells 2 one-off in-app purchases. SFClock asks for nothing beyond the download.
SFClock ships an update every 5 months, Alarmium every 8 days. The most recent releases landed on September 14, 2026 and August 27, 2026 respectively.
| Parameter | SFClock | Alarmium |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 5 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Vision Pro — better | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 0 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Yafei Dong | Ravindu Wataketiya |
In-app purchases
SFClock
No in-app purchases
Alarmium
- Alarmium Essentials$4.99
- Alarmium Plus$9.99
Questions
Is SFClock free?
Is Alarmium free?
Do SFClock or Alarmium have ads?
Which is updated more often, SFClock or Alarmium?
Other comparisons
