Name: Emerald Timestamp
Author: Emerald Sequoia

Description

Emerald Timestamp captures the precise time of events, and lets you associate a description with each one. It is also a highly-accurate running clock.
Very high precision:
- Uses atomic clocks via NTP, usually accurate to within 0.2 second
- Color coding (yellow and green) makes it obvious when you have a valid synchronization
- The network is required for synchronization, but you can record events without it with less accuracy
- When the app restarts, it uses the previous synchronization offset until the first sync comes in
- Version 2.0 and above display leap seconds in progress
Events are grouped by day in a scrolling list
- Record as many events as you like
- Add a description to any or all events
- Create multiple buttons with custom names to predefine event descriptions
- Easily show the difference in time between any two events
Easily cycle between time representations by tapping on a time in the display:
- Local 12-hour time
- Local 24-hour time
- UTC (aka GMT)
- Julian Date (JD) (settable globally to JD(TT) or JD(UTC))
- Interval from a reference time (using any event as a zero reference)
There is also a running clock at the top of the display showing the time in the chosen format.
You can use a hardware keyboard (such as the iPad Pro's Smart Keyboard) to trigger events using the space bar, enter key, or digits 1 through 0. [NOTE: if the keyboard is a bluetooth keyboard (unlike the Smart Keyboard which is direct connect) there will be a slight delay between the keyboard press and the time the app records.]
Email the time and description of an event, or all events (uses your device's email program), optionally using TSV or CSV for spreadsheets.
A complete description of each application feature can be found in the built-in Help screens and on the Emerald Sequoia LLC Web Site. A developer's blog may also be found at http://emeraldsequoia.com/esblog/ .
All date displays are localized, though the interface and Help are in English only.
If you are having any trouble with the application whatsoever, please see our FAQ on the support page listed below and then contact us through that page if your problem is not resolved. We take pride in responding promptly to all support email requests.
(NTP time synchronization requires network access. Like all other iOS apps, Emerald Timestamp cannot set the device's internal clock.)

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Screenshots

Emerald Timestamp FAQ

Is Emerald Timestamp free?

Yes, Emerald Timestamp is completely free and it doesn't have any in-app purchases or subscriptions.
Is Emerald Timestamp legit?

✅ The Emerald Timestamp app appears to be high-quality and legitimate. Users are very satisfied.

Thanks for the vote
How much does Emerald Timestamp cost?

Emerald Timestamp is free.
What is Emerald Timestamp revenue?

To get estimated revenue of Emerald Timestamp app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.

User Rating

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Ratings History

Emerald Timestamp Reviews

Great app

This app is great. I use it to track symptoms I’m having and record their frequency. It’s a great way to show my doctor how frequently a symptom is occurring, and it is super simple to use.

Very useful app

I love this app! There is one feature I’d like to see: a display of the lapsed time between EACH button press. I know there is a setting for time between a single point in time and the button press time, but that isn’t as useful. Otherwise, a great app!

Great But

This app would perfect if it supported separate lists of the times rather than combining them all - I would creat a list of medicines, lists of task completions for various projects , a list for workouts, a list for household chores, etc. etc.

Excellent app

Use this for logging milestones while travelling and for critical client calls, so I know when we spoke. Easy to use and accurate.

Great App used in Race Timing

As a race timer for over a decade, I’ve needed independent way to capture an accurate time of day. This app has been a near perfect solution. It has been worth the price. The only improvement would be making one of the volume buttons able to capture a time so I didn’t need to be looking at my phone.

Timestamp

Only thing that could make this better is iPhone hardware button trigger. (Like the camera app can use the volume up button to take photos.) Almost no difference compared to GPS 1 PPS. A nice piece of work. Great for astronomy. With iPod Touch one cannot set the device's time precisely. This app takes care of that.

Simple, works great

Please keep up with updates. I have used this for many years!

works well

Thank you. Any plans for a widget? I think that would be a nice to have.

Awesome!

Thank you for this app and keep the updates coming. Ironically I bought this app after my Casio G-Shock fell off my wrist and into the ocean. I always used the Time Memo feature on my wrist watch and was looking for a good high end watch when I found a link to the Emerald Geneva watch and the Emerald Timestamp app. Wow! What a set of Apps. I bought both the Emerald Timestamp and Emerald Chronometer (They have a cheaper Geneva App but I wanted them to keep creating watches so I gave them what I thought they were worth!) and I am very pleased. Maybe just maybe they could make the first watch created after an app! I LOVE IT!!! Thank you! Both Timestamp and Chronometer are A++ apps!

Great for Interviews

I use this to log live interviews for video news production. Wow, sell this app for this purpose and you've got a big hit. Thank you!