Apps Like AtomicClock: NTP Time for iPhone and iPad
Get exact and sync clocks
Display current in correct format with analog clock and adjustable zones. Choose from multiple NTP servers or add custom ones. Switch between local and UTC , 12-hour and 24-hour formats.
AtomicClock: NTP Time screenshots
Ranked alternatives
Showing 421–440 of 1,000 ranked alternatives.

Aircraft Heading
Sean Flanagan
Track with realistic indicator
Displays a photorealistic -style indicator with both analog and digital readouts. Users can toggle rotation lock, simulate the instrument indoors, and view improved graphics. Supports latest iOS versions and includes bug fixes.

GPSTime
Gimin Kim
Convert time formats and align data
Convert GPS Time to UTC and vice versa with support for leap seconds. Input GPS Week and Time of Week or GPS Week and Day of Week. Output in various time formats. Align observation data and parse ephemerides efficiently.

Fan180Clock
Osamu Tsuchihashi
Set time, alarm, and display mode
A clock with 24-hour display in portrait and landscape modes. Set alarms in 10-minute increments with customizable sound, vibration, and screen blinking. Disable automatic locking while active. Requires charging for alarm functionality.






Holdover Calculator
Kilo Lima Management, LLC
Calculate and allowance times
Allows users to input required data to compute and allowance times. It verifies duration and provides accurate results. Users can track and manage periods efficiently.

WikiPro App
Tree Management Systems, LLC
Send messages, sign documents, and automate alerts
Communicate with clients through instant messaging. Send and receive e-signatures for documents. Set up customized automated notifications based on industry-specific needs. Collaborate in real-time across desktop and mobile devices.



LCD Clock - Clock & Calendar
forYou inc.
Digital clock and calendar display.
The app displays a digital clock and calendar with an LCD style. It offers features like a monthly calendar, weather forecast, and customizable themes.




Unix Timer
Andrew Moloney
Tap to copy timestamp instantly
Tap to copy the current timestamp instantly. View a full-screen live clock display. Switch themes with a swipe. Supports iPhone and iPad. Designed for iOS with Native Swift.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.