Quick notes, stamped with the time.

Type a line and Jotstamp saves it with the exact time. Keep separate logs, tag entries, and look back to see when things happened.

Download for Android iOS · Coming soon

Free · No account needed · Private by default

One line per entry. No forms.

Journals ask for a title, a mood, a category. Trackers want you to set things up before you've started. So nothing gets written, and by evening the day is a blur. Jotstamp asks for one line. That's the whole form — the time, the order and the patterns take care of themselves.

Use cases

Interruptions

Log each interruption as it happens. See how many there were, and when.

Baby care

Log feeds, diapers, naps and tummy time. Tap a tag to see when the last one was.

Meetings

Note decisions, owners and risks with the time they came up.

Health

Log symptoms, doses and triggers. Share the timeline with your doctor.

On-call

Log each step of an incident as you take it. The timeline is ready for the review.

Caregiving

Log meds, visits and how they're doing. Share the day with family or a nurse.

How it works

  1. Tap

    Tap the log's home-screen widget. It opens straight to an empty line with the keyboard up.

  2. Write a line

    Say what happened. Add a #tag if you like. Press Enter twice and it's saved, with the time.

  3. Look back

    Tap a tag to see every time it happened. Search across all your logs, or share a day as text.

Features

Time is automatic

Every entry gets the moment you wrote it. Forgot to log something? Set the time — it's marked with a * so your record stays honest.

A log for everything

Work, baby, health — each log has its own icon, widget and launcher shortcut. Archive the ones you're done with.

#tags that count

Type #diaper anywhere. Each tag gets its own color and a button at the top: tap it to see every one, and when the last was.

Capture from anywhere

Widget, shortcut, or share a screenshot straight in — it keeps the moment you shared it.

Hand your day to AI

Share a day or a whole log as clean, timestamped text to the assistant you already use, and ask it what the pattern is.

Reads like a document

No chat bubbles, no boxes. Multi-line notes, headings: at the start of a line, search across every log, six color themes.

Your notes stay on your phone.

  • No account needed. Without one, your logs live only on your phone.
  • Nothing leaves it unless you tap Share — or choose to sync with Pro.
  • Export everything any time — JSON, plain text and your images in one zip.

Science-backed

Why writing one line helps

Stopping to write sounds like overhead. Research says it's the opposite: a note at the moment you switch treats four well-studied costs that everyone pays — and that people with ADHD tend to pay most.

01

Attention residue

Leave a task unfinished and part of your mind stays behind, dragging down whatever you do next.

The entry “Left off at section 2” closes the loop, so it stops running in the background.

Leroy, 2009
02

Switching cost

Every switch spends time re-aiming at a new goal and reloading its rules — more when the work is complex.

The entry A next: line is the cue that gets you back up to speed when you return.

Rubinstein, Meyer & Evans, 2001
03

Time blindness

Minutes and hours are hard to feel. The fix that works is an external clock, not willpower.

The entry Every line is stamped automatically. The gaps show where the time went.

ADDA
04

Working-memory load

Holding a half-finished thought takes room you need for the task in front of you.

The entry Put it on the page and you don't have to hold it anymore.

Pennebaker, via APA

The practice has a name — interstitial journaling, coined by Tony Stubblebine in 2017. Jotstamp is built around it.

Pricing

Jotstamp is free for one person on one phone. Pro adds sync and logging together.

Free

$0

No account needed.

  • Unlimited logs, entries, tags and images
  • Folders and spaces to organize them
  • Widgets, launcher shortcuts and share-to-log
  • Search, share as text, and full export
  • Everything stays on your phone
Download

Pro Coming soon

Price TBD

Needs a free account.

  • Everything in Free
  • Sync your logs across your phones and tablets
  • Shared spaces: log together with family or coworkers
  • Share a single log without sharing the rest
  • People you invite don't need Pro
Create an account

Download Jotstamp

Free. No account needed.

Download for Android iOS · Coming soon

Android 8.0 or newer.

Questions

Who is it for?

Anyone who wants a record of when things happened without the busywork: people guarding their focus at work, new parents, anyone tracking symptoms or medication, on-call engineers, caregivers. If you'd otherwise try to remember it later, it probably belongs in a log.

Can I use it for meeting notes?

For the moments that matter, yes: decisions, owners, risks, with the time they were said. For long, structured minutes, a regular notes app is the better tool.

Do I need Pro?

Not to use Jotstamp. Free has no limits on logs or entries. Pro is for when your logs need to be on more than one device, or when more than one person writes to them — a household tracking a baby, or a small team sharing a log.

What happens to my logs if I stop paying for Pro?

They stay on your phone, and you keep using Jotstamp for free. Syncing stops, and shared spaces you own become read-only for the people in them.

Does it track me or my screen?

No. It only knows what you type into it. There's no background tracking and no analytics, and you don't need an account.

What happens to my data if I switch phones?

Export from Settings gives you a zip with every entry and image. Your phone's own device backup covers the app too, if you have it turned on.