Best apps like Emerald Chronometer

37+ similar apps compared and reviewed

4.5 avg rating
4 free apps
Updated July 2026

Emerald Chronometer is great, but it's not the only option. Explore 37+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to Emerald Chronometer

Sun Clock App#1

Sun Clock App by Piet Jonas

Editor's Choice
🔧 Utilities
4.3(4 ratings)
FreeIn-App Purchases
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Sun Clock App screenshot 6

This utility app displays the current time and the sun's position for your location. It shows solar time, sunrise, and sunset, with options to toggle seconds and 12/24-hour formats. The app automatically updates your location and can keep your device awake for continuous display.

Atomic Clock (Gorgy Timing)#2

Atomic Clock (Gorgy Timing) by CompuLab

The classic par excellence
Strong Contender
🔧 Utilities
4.8(4.8K ratings)
$1.99In-App Purchases
Atomic Clock (Gorgy Timing) screenshot 1
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This app provides ultra-precise time by syncing with atomic time servers. It features a customizable display mimicking professional studio clocks, with advanced alarm functions and various visual themes. Designed for accuracy and usability, it's ideal for professionals and enthusiasts alike.

Timegrapher X#3

Timegrapher X by ONYX 3

Mechanical Watch Timegrapher
Worth Considering
🔧 Utilities
4.2(23 ratings)
$29.99In-App Purchases
Timegrapher X screenshot 1

This app analyzes the ticking sound of mechanical watches to measure accuracy, beat error, and amplitude. It offers real-time waveform and detailed diagram displays, as well as long-term data logging for in-depth analysis. Pro features include PDF reports, CSV export, and extended testing durations.

More apps like Emerald Chronometer

4
Mininigma: Enigma Simulator
Mininigma: Enigma Simulator
Mininigma: Enigma Simulator
Enigma machine simulator
$1.99

This app simulates the historical Enigma cipher machine used during WWII. It allows users to encrypt and decrypt messages, generate machine configurations from keywords, and accurately models various Enigma machine types. Interact with other applications through copy/paste functionality.

Enigma machine simulationMessage encryption and decryptionKeyword-based configuration generation
🔧 Utilities
(27)
free
5
Plus42
Plus42
Plus42
Enhanced HP-42S Calc Simulator
$9.99

This advanced scientific calculator simulates the classic HP-42S RPN calculator with enhanced features. It offers algebraic expressions, unit conversions, directories for storage, a larger resizable display, financial functions, and 2D plotting with integral and root finding.

HP-42S RPN calculator simulationAlgebraic expressionsAttached units and conversions
🔧 Utilities
(76)
free
6
World Clock Pro: Convert Time
World Clock Pro: Convert Time
World Clock Pro: Convert Time
Timezone Converter & Scheduler
Free

Easily track and convert time across multiple global time zones. Schedule events, share accurate times instantly, and access a vast database of cities and time zones. Ideal for international communication and planning.

Universal clock accessEffortless time conversionSchedule calendar events
🔧 Utilities
(1.3K)
subscription
7
LSTclock: sidereal time clock
LSTclock: sidereal time clock
LSTclock: sidereal time clock
Local sidereal time clock
Free

This utility app displays local sidereal time for registered locations on iOS, iPadOS, and watchOS. It can also calculate sidereal time and Julian Date for any date and time, and sync locations between devices.

Local sidereal time displayJulian Date calculationSupports multiple registered locations
🔧 Utilities
(10)
free
8
Omnistat 2
Omnistat 2
Omnistat 2
Activity Monitor
$5.99

Access detailed technical and performance information about your iOS device. Monitor network activity, storage, memory, CPU usage, and battery status through the app and customizable widgets.

Device technical informationNetwork activity monitoringStorage and partition details
🔧 Utilities
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paid
9
Cloki – Clock Widget
Cloki – Clock Widget
Cloki – Clock Widget
Create your own clock
Free

Design custom clock widgets with a variety of personalization options. View calendar appointments as arcs and track different time zones or the moon phase directly on your home screen.

Personalize clock appearanceDisplay calendar appointmentsSet different time zones
🔧 Utilities
(34)
free with in-app purchases
10
Emu50g
Emu50g
Emu50g
by TheWinterStorm (Marek Zima)
$8.99

This app provides a full emulation of the HP50g scientific calculator, complete with its original skin. Save and load calculator states, manage libraries, and transfer data to and from your computer. Enjoy sound effects and a high-definition interface for a familiar calculator experience on your device.

Full HP50g calculator emulationSave and load calculator statesManage and load custom libraries
🔧 Utilities
(42)
free