Trip currency, expense currency and display currency answer three different questions, and nothing said so: the trip currency wasn't documented at all (it had no picker until now), and Budget-Tracking conflated the other two while still claiming 47 currencies and a display currency that always came from Settings. Add a Currencies page as the one place they're defined together — the trip currency as the accounting base, the expense currency as the receipt with its rate frozen at entry, the display currency as presentation-only — plus what happens when a trip's currency changes, which currency a public share renders in, and what belongs to the Costs addon versus the trip itself. Rewrite Budget-Tracking's currency section against it, document the currency field in Creating-a-Trip and the display currency in Display-Settings (which never mentioned it), and note the sharer-or-trip fallback in Public-Share-Links.
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Display Settings
The Display tab (Settings → Display) controls the visual appearance and locale preferences of the app. All changes save immediately to your account and persist across devices.
Color mode
Choose between three options:
| Option | Behaviour |
|---|---|
| Light | Always uses the light theme |
| Dark | Always uses the dark theme |
| Auto | Follows your operating system / browser preference |
Currency
Your display currency — the currency you want to read amounts in on the Costs tab (totals, the category chart, balances, settle-up). It is presentation only: it never changes what is stored, and two members of the same trip can read it in different currencies and both see correct balances.
| Option | Behaviour |
|---|---|
| Trip currency (default) | Each trip is shown in its own currency — a Tokyo trip in yen, a Moscow trip in roubles. |
A specific currency (e.g. USD) |
Every trip is converted into that currency for you, whatever its own currency is. |
165 currencies are available. Conversion uses live rates, so a converted total can shift slightly from day to day while the trip's actual balances stay fixed.
This is not the trip's currency, which is set on the trip itself and is the base its balances are calculated in. The distinction matters — see Currencies.
An administrator can set the instance-wide default for new users in Admin → Default User Settings. Choosing Trip currency yourself overrides it.
Language
Select your preferred language from the button grid (desktop) or dropdown (mobile). The change takes effect immediately without a page reload. See Languages for the full list of supported languages.
Temperature unit
Affects the weather widget on trip days.
| Option | Display |
|---|---|
| °C Celsius | Metric |
| °F Fahrenheit | Imperial |
Time format
Affects all time displays throughout the app.
| Option | Example |
|---|---|
| 24h | 14:30 |
| 12h | 2:30 PM |
Route calculation
Toggles automatic route calculation between places on the trip map. Set to On or Off.
Booking route labels
Shows or hides labels on booking-related route segments on the map. Set to On or Off.
Blur booking codes
When enabled, confirmation codes and reference numbers are blurred until you hover or tap. Set to On or Off.
