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Offline Mode

What the app can still show with no connection, and what it cannot save

3 min readUpdated Sep 25, 2026

Read this before a flight. The short version: on the web, food and water you

log with no connection are kept and sent once you are back online. The ClapDiet

mobile app needs a connection, and logging in it without one does not work.

On the web

Food and water you log in the web app while offline are saved and sync once

you reconnect. Until each entry has been sent it shows as waiting to sync, and

you do not need to type it twice.

Some features need a connection, such as AI meal recognition from a photo or a

description, and relogging an entry from your history. Nothing else you save is

queued either: a weight entry saved with no connection is not saved, so enter it

again once you are back online.

Open the page you log from before you lose the connection. A page that has not

loaded yet cannot be opened offline.

Entries that have not synced belong to the account that logged them. Signing out

deletes them from this browser, and ClapDiet tells you how many there are first,

so you can stay signed in and let them sync. If a different account signs in here,

the previous account's entries that have not synced are deleted, never sent to the

new account.

In the mobile app, do not log without a connection

In the mobile app, a meal, a glass of water or a weight saved with no signal

is not saved. It is not queued, it is not held on the phone, and it does not

upload later. The save fails and the entry is gone.

The mobile app has no offline write queue. We would rather tell you that than

have you log a day of meals on a plane and land to find them missing.

If you will only have your phone while offline, note what you ate somewhere

else — your phone's notes app is fine — and enter it when you are back.

What the mobile app can still show

Three screens keep a copy of what they last showed you, for 24 hours:

  • Your home screen — today's totals and targets as of your last load
  • Fasting, on both the mode screen and the tracker
  • Open one of them with no connection and it shows you that copy rather than an

    error. Everything else on the screen behaves normally, which means anything

    needing fresh data will not load.

    The rest of the app — the food database, your labs, your plan, insights,

    settings — needs a connection every time.

    The mobile app does not know it is offline

    There is no offline banner, no cloud-with-a-line icon and no offline mode to

    switch into. The mobile app cannot currently detect that your connection has

    dropped: it tries, waits, and shows you an error or an empty screen.

    That is why the advice above is about what you do rather than what the app

    does. A screen that fails to load with no explanation is almost always this.

    When you are back online

    On the web, your waiting food and water entries are sent without you doing

    anything. In the mobile app nothing happens automatically, because nothing was

    waiting. Pull down to refresh the screen you are on, or leave and come back to

    it, and it loads normally again.

    Preparing for time offline

    There is nothing to download by hand, and no setting to turn on. What genuinely

    helps:

  • On the web, open the page you log from while you still have a connection
  • In the mobile app, open your home screen and the fasting screen while you
  • still have a connection, if you want to be able to look at them later

  • In the mobile app, write down what you eat, and log it afterwards
  • Do lab uploads before you go, since they need a connection and are the
  • largest transfers

    In a poor signal area

    Slow is different from absent. On a weak connection screens will load, just

    slowly, and saving works — it may simply take a few seconds. The mobile app

    retries a failed request twice before giving up, so a brief dropout often

    resolves itself without you noticing.

    What we would like this to be

    An offline log queue is the missing piece in the mobile app, and we know it.

    Until it exists there, the honest guidance for the app is the guidance above.


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