Tiddle Documentation | Sylvester Digital

Introduction

Overview

Tiddle is a focused Android app for tracking fluid intake and output. It lets you log what you drink, record urine and bowel output, keep a dated history with notes, and export your data to share with a healthcare provider.

Everything is stored locally on your device. Tiddle requires no account, no internet connection, and no subscription. Your data never leaves your phone unless you choose to export it.

Tiddle is not a medical device. It is a personal logging tool. Always consult a healthcare professional for medical advice.

Navigation

Home screen

When you open Tiddle, the home screen shows today's date and five options:

Log Input: record a new fluid intake entry
Log Output: record a urine or bowel output entry
View History: browse and manage your past entries
Export Data: download or share your data as a file
Settings: configure display preferences and manage your data

Tap any option to navigate to that screen. Use the back arrow in the header to return to the home screen from any screen.

Recording fluid intake

Logging input

Tap Log Input on the home screen to open the intake form.

Date and time

The date and time fields default to the current date and time. Tap either button to change them using the system date picker or time picker. This is useful if you want to log a drink that was taken earlier and not immediately recorded.

Volume

Enter the volume of fluid consumed. The unit (millilitres or fluid ounces) is shown next to the field and reflects your current unit setting. You can change the unit in Settings.

Input

Enter the volume in ml or fl oz. For example, a standard 250 ml glass of water or a 330 ml can of drink. The volume field is required to save an input entry.

Notes

The notes field is optional. Use it to add context, for example:

"Morning water with medication"
"Protein shake after exercise"
"Estimated: didn't finish the glass"

Saving

Tap Save to record the entry and return to the home screen. Tap Cancel to discard the form and go back without saving anything.

Recording fluid output

Logging output

Tap Log Output on the home screen to open the output form.

Output type

Select the type of output:

Urine

Urine Select for urinary output. Volume is optional; you can log without measuring if you do not have a measuring device available.

Bowel

Bowel movement Select for bowel output. Volume is optional.

Date and time

As with input, the date and time default to now but can be changed using the date and time pickers.

Volume

Volume is optional for output entries. If you have a measuring device (such as a jug or commode pan with measurements), enter the volume in your chosen unit. Leave it blank if you are not measuring.

Notes

The notes field is optional. Use it to add context, for example:

"Unusually dark colour"
"Catheter bag emptied"
"Loose stool"

Saving

Tap Save to record the entry. Tap Cancel to go back without saving.

Managing your data

Viewing history

Tap View History on the home screen to see all your past entries. Entries are grouped by date, with the most recent at the top.

Entry rows

Each row shows:

A colour-coded badge indicating the entry type (Input, Urine, or Bowel)
The volume (if recorded)
The time of the entry
A chevron to indicate the row is expandable

Tap any row to expand it.

Expanded view

When a row is expanded, you can see:

The notes attached to the entry (if any were added)
An Edit button to modify the entry
A Delete button to remove it

Editing an entry

Tap Edit to open the edit dialog. From here you can change the date, time, type, volume, and notes. Tap Save to apply your changes, or Cancel to close without saving.

Deleting an entry

Tap Delete and confirm the prompt to permanently remove an entry. This cannot be undone.

Deleted entries cannot be recovered. If you want to remove all data at once, use Delete All Data in Settings.

Sharing your data

Exporting data

Tap Export Data on the home screen to generate a file containing your records.

Export options

Format: CSV, PDF, Excel (.xlsx), or JSON
Data scope: all entries, input only, or output only
Date range: optionally set a from and to date to export only entries within a specific period; leave both blank to export everything

Saving and sharing

Tap Save to save the file to your Downloads folder
Tap the Share icon to send the file via any app on your device (email, messaging, cloud storage, etc.)

For sharing with a GP, community nurse, or hospital team, the PDF or Excel format is usually most convenient. The CSV format is best if you want to open the data in a spreadsheet yourself.

Configuration

Settings

Tap Settings from the home screen to access the following options.

Appearance

Theme controls the colour scheme of the app. Choose from:

System (default): follows your device's light or dark mode setting
Light: always uses the light theme
Dark: always uses the dark theme

Display

Date format changes how dates appear throughout the app. Options:

Monday, 1 Jan 2024 (default)
1 Jan 2024
01/01/2024
01/01/2024 (US month-first)
2024-01-01 (ISO 8601)

Time format switches between 12-hour (e.g. 3:30 PM) and 24-hour (e.g. 15:30) display.

Units

Volume unit sets whether volumes are entered and displayed in millilitres (ml) or fluid ounces (fl oz). This applies to both input and output entries. Changing the unit does not convert existing data; historical entries will still display the value as it was originally entered.

Data

Delete All Data permanently removes all input and output records. A confirmation prompt is shown before anything is deleted. This cannot be undone.

About

The App Info card shows the app's version number and build number.

Privacy & Legal opens a screen with the app's privacy policy and medical disclaimer.

Data handling

Privacy

Tiddle is built with privacy as a core principle. Here is exactly how your data is handled:

All entries are stored locally on your device using Android's standard app storage
Tiddle does not require an internet connection and does not request network permissions
No data is ever sent to any server, including Sylvester Digital's servers
There are no analytics, crash reporting, or advertising SDKs in the app
No account or sign-up is required
Exported files are created entirely on your device; you decide if, when, and how to share them

If you uninstall the app, all locally stored data is removed by the Android operating system as part of the standard uninstall process. There is no cloud backup to restore from, so export your data first if you want to keep it.

Common questions

FAQ

Can I use Tiddle on iOS?

Tiddle is currently Android only. We may explore other platforms in the future.

Can I log an entry for a past time?

Yes. On the log screen, tap the date button to pick any date in the past, and the time button to set the time.

Do I have to enter a volume for output?

No. Volume is optional for output entries. You can log urine or bowel output without a measurement if you do not have a way to measure it.

What unit should I use?

Most clinical guidance in the UK uses millilitres (ml). If you or your care team work in fluid ounces, switch the unit in Settings. Either works fine, but be consistent so your records are comparable over time.

How do I move my data to a new phone?

Export your data as CSV from your old device, transfer the file to your new device (via email, cloud storage, or cable). Support for CSV import will be available in a future version of the app.

How do I share my records with my doctor or nurse?

Use the Export screen to generate a file, then tap the share icon to send it however is most convenient: email, WhatsApp, or another app. A PDF or Excel file is usually easiest for clinical staff to read.

Something isn't working. How do I get help?

Use the contact form and select "Tiddle: feedback or bug report". Include your Android version and a description of the issue and we will get back to you.