Comparison

Sunsync vs Alarm Manager

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

Head to head
About

Sunsync

Features
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View and be notified of solar times--dawn, sunrise, sunset, and more! Have the accuracy of NOAA in your pocket--the times are as accurate as NOAA's online calculator with some modest improvements for solar noon and match timeanddate.com to within 1-2s. Keep your day in sync with the sun! - See times from all over the world and on any date! - Schedule a notification just once or be notified on a recurring schedule - Display a clock to visually see how near a solar time is - No or spotty internet connection? No problem. The app still functions. Offline Mode Features and Caveats With no internet connection, the app will still work, but it will need to be connected to the internet again every few days for recurring notifications to continue working automatically. If that is not possible, the user can manually make them continue to work by flicking the switch to turn them off and then on again every few days. If a user wants to create a new location while lacking an internet connection, the user can create a location using latitude and longitude coordinates, using the convention that negative values are South of the equator and West of the Prime Meridian. The location created while offline will lack timezone information to display the times to the user in the local time of that location, but otherwise, everything works as expected. When the user comes back online, the app will automatically attempt to update the location with a name (if a match can be found) and timezone. If multiple locations match to the same place, the app automatically deletes all but one of them--no duplicate locations are permitted. Clock View The user can turn on the clock view from time settings. The clock view will display the time of the event that is selected and the user's current time on the hands of a clock and will update as the user taps more events. Tap and hold one of the time events to make the clock view display that event's time without popping up the notification creation form. The color of the event's clock hand changes depending on whether the event time is AM or PM. Limitations The algorithm used comes from Jean Meeus' Astronomical Algorithms and will be accurate to within a minute for most latitudes (+/- 72 degrees, i.e., up to around the Polar Circles) and within 10 minutes otherwise. Due to atmospheric refraction and other conditions, the calculated times may be different from what is observed. The algorithm is very good from the years 1800-2100 with still reasonable but decreasing accuracy from the years -1000 to 3000. The algorithm has a higher risk of error outside that range.

About

Alarm Manager

Features
Read full description

Tired of chaotic mornings? Wake up on your terms — quietly, reliably, and without interruptions. Alarm Manager is a smart alarm clock for iOS, designed to give you full control over your wake-up routine and help you start every day with ease. Whether you need a simple one-time alarm or a flexible weekly schedule — Alarm Manager keeps it clean, intuitive, and distraction-free. KEY FEATURES • Live countdown to your next wake-up • Flexible snooze controls (1-30 minutes) with customizable alarm actions • Weekly repeating alarm schedule • Home screen widget with upcoming alarms • Custom alarm sound library with built-in and imported sounds • Manage your sounds in one place: add, preview, and remove anytime • iOS Focus / Do Not Disturb friendly • Privacy-first — all data stays on your device • Clean, simple settings designed for quick daily use FREE VERSION • Full alarm functionality • Supported by ads PREMIUM VERSION • Everything in Free • Completely ad-free experience • Clean, uninterrupted usage — no distractions, ever Alarm Manager is built for anyone who wants better mornings and total control over their daily schedule. Premium Version The app offers an automatically renewing Premium subscription. Payment will be charged to your iTunes Account upon confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours before the end of the current period and specify the cost of renewal. Subscriptions may be managed by the user, and auto-renewal may be turned off by going to the user's Account Settings after purchase. Any prices referenced are in US Dollars (USD). Pricing in other currencies and countries may vary and actual changes may be converted to your local currency depending on the country of residence. LINKS Stay connected and join our community: • Website: https://alarm-manager.pamnet.pl/ Terms & Privacy: • Private Policy: https://alarm-manager.pamnet.pl/privacy-policy • Terms of Service: https://alarm-manager.pamnet.pl/terms-and-conditions

Screenshots

Sunsync4 screens
Alarm Manager4 screens

Verdict

The call

The clearest difference is in-app purchases: Sunsync at none against Alarm Manager's 1. Sunsync also leads on ads (none vs shown) and iOS requirement (15.6 vs 18.4). Alarm Manager's advantage is update cadence (every 2 weeks vs every 4 months). On price and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Alarm Manager sells 1 one-off in-app purchase. Sunsync asks for nothing beyond the download.

UpkeepUpdate frequency

Sunsync ships an update every 4 months, Alarm Manager every 2 weeks. The most recent releases landed on October 6, 2026 and October 19, 2026 respectively.

Scorecard4 real differences Ā· 2 level
Sunsync versus Alarm Manager: the parameters behind the verdict, then further details
ParameterSunsyncAlarm Manager
PriceFreeFree
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better18.4
Further details — not scored
Size43 MB42 MB
Age rating4+4+
DeveloperClusia LLCPawel Malyszczuk

In-app purchases

None

Sunsync

No in-app purchases

1 purchases

Alarm Manager

One-time1
  • Pro Lifetime$2.99

Questions

Is Sunsync free?
Sunsync is free to download, with no in-app purchases.
Is Alarm Manager free?
Alarm Manager is free to download, with in-app purchases available.
Do Sunsync or Alarm Manager have ads?
Alarm Manager shows ads; Sunsync does not.
Which is updated more often, Sunsync or Alarm Manager?
Sunsync ships an update every 4 months, and Alarm Manager every 2 weeks. Most recently, Sunsync was updated on October 6, 2026 and Alarm Manager on October 19, 2026.

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