Sentarm vs Alarm One
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sentarm
This smart alarm assistant simplifies setting alarms for complex and rotating schedules. It offers holiday recognition, custom calendars, and a minimalist interface for ease of use. Widgets, dark mode, and multi-language support enhance the user experience.
- Customizable work schedule alarms
- Automatic holiday and special date skipping
- Multiple regional and custom calendars
- Convenient alarm and calendar widgets
- Dark mode and multi-language support
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Sentarm is your smart and flexible alarm assistant. Working alternate weeks, rotating shifts, or a custom schedule? Sentarm handles even the most complex routines with ease. Designed with a minimalist UI and intuitive interactions, setting alarms becomes simple and pleasant. Built-in holiday recognition means no more being startled awake on holidays — or forgetting to turn alarms back on. If the system alarm isn’t cutting it, Sentarm might just be the better choice. === Feature === 1. Set alarms that match your personal work schedule. 2. Smartly skip alarms on holidays and adjust for special dates. 3. Choose from multiple regional built-in calendars, or create your own custom calendar. 4. Convenient widgets for viewing alarms and calendars. 5. Dark mode and multi-language support. More features are on the way — we’d love to hear your ideas! If you enjoy Sentarm, please leave us a 5-star rating on the App Store! === Contact === Email: sentarm_app@outlook.com
Alarm One
Manage complex schedules with flexible alarms for rotating shifts, international time zones, and recurring events. Organize alarms into groups and control them with a single tap. Features custom wake-up sounds, widgets, timers, and stopwatch functionality.
- Rotating shift alarms
- World clock and time zones
- Alarm grouping
- Custom wake-up sounds
- Home and lock screen widgets
- Timers and stopwatch
- iCloud sync across devices
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WORLD CLOCK & TIME ZONE ALARMS Keep local time and cities around the world together. Check the time and date in each city, then set an alarm using that city's time. See when it will ring in your local time before saving. Choose a one-time alarm or weekly repeat rules for international meetings, travel, and family abroad. Alarm One is built for changing schedules. Create alarms for rotating shifts, organize them into groups, and enable, disable, or skip an entire routine with one tap. Featured by the App Store. FLEXIBLE SCHEDULES Set alarms for rotating shifts, workdays, weekdays, weekends, monthly dates, or one-time events. Skip the next occurrence without breaking the rest of your schedule. ALARM GROUPS Keep work, family, medication, travel, and weekend alarms organized. Enable, disable, or skip a whole group at once. ONE-TIME ALARMS, ZERO CLUTTER Create a reminder for a flight, appointment, nap, medication, or school pickup. After it rings, Alarm One can remove it automatically. CUSTOM WAKE-UPS Use your own sounds, gradual volume, and snooze to create an alarm that fits you. HOME & LOCK SCREEN WIDGETS See your next alarm, today's schedule, and monthly calendar at a glance. Control alarms directly from a widget. TIMERS & STOPWATCH Run countdowns, interval sessions, and lap timing without switching apps. SYNCED ACROSS YOUR APPLE DEVICES Keep your alarms up to date with iCloud on iPhone, iPad, and Mac. WHY ALARM ONE • Flexible repeat rules for changing routines • Whole-group control in one tap • One-time alarms that clean themselves up • Clear, ad-free interface designed for Apple platforms Whether you work rotating shifts, manage a family's schedule, train with intervals, or need a one-time reminder, Alarm One keeps every routine under control. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://alarmone.echopie.com/privacy
Screenshots
Verdict
Sentarm and Alarm One both sit at 4.2 stars, but that hides the real split: 80% of Alarm One's written reviews are positive against 50% of Sentarm's. Alarm One also leads on ratings volume (16 vs 5). On price, rating, update cadence and ads 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. Sentarm sells 4 one-off in-app purchases and Alarm One sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.2 for Sentarm against 4.3 for Alarm One. Both are backed by a comparable volume of ratings — 5 and 16 respectively. Written reviews are what separate them: 50% of Sentarm's written reviews are positive against 80% of Alarm One's.
Sentarm ships an update weekly, Alarm One every 2 weeks. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.
| Parameter | Sentarm | Alarm One |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) | 4.3 (16 ratings) — better |
| Positive reviews | 50.0% of reviews | 80.0% of reviews — better |
| Number of ratings | 5 | 16 — better |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 45 MB | 82 MB |
| Age rating | 4+ | 4+ |
| Developer | 永康 梁 | Qingzhe Wu |
Customer experience
Sentarm
Alarm One
In-app purchases
Sentarm
- Custom SoundFree
- Custom Calendar$0.99
- Widgets$0.99
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- Missions$1.99
Alarm One
- Premium (Monthly)7 Days trial$1.991 Month
- Premium (Yearly)1 Month trial$6.991 Year
- Lifetime premium$16.99









