If you pay for some things in dollars and others in pounds or euros, there's a real design question underneath: should a tracker convert everything into one number, or keep the currencies apart? Both answers are defensible, and they suit different people.
The short answer
If you want a single headline figure and accept that it's an estimate that drifts with exchange rates, pick a tracker that converts — Subby and Orbit both advertise multi-currency conversion. If you'd rather see exactly what leaves each account with no rate applied, pick one that groups by currency. TrialBell groups; it does not convert.
Why this is harder than it looks
Converting currencies for a subscription total sounds trivial and isn't, for three reasons:
- The rate moves. A converted total is only accurate on the day it was calculated. Next month it's wrong, by a little or a lot.
- Which rate? The mid-market rate is the honest one, but it isn't what you actually paid — your card added a spread, and possibly a foreign-transaction fee.
- It needs a network call. Live rates mean fetching them, which for a privacy-first app means adding a network dependency to something that otherwise has none.
The two approaches
| Convert to one currency | Group by currency | |
|---|---|---|
| You get | One headline number | An exact total per currency |
| Accuracy | An estimate, drifting with the rate | Exact — it's what actually leaves the account |
| Good for | Budgeting in a single home currency | Accounts held in different currencies |
| Weakness | Stale rates; hides card spreads and fees | No single number to compare against income |
| Examples | Subby, Orbit (both advertise conversion) | TrialBell |
Competitor capabilities here are taken from their public App Store listings, last verified July 2026.
What TrialBell does, precisely
Each subscription carries its own currency. Insights totals are grouped by currency and shown side by side — so a mixed set reads as something like "£38.97 · $24.98 per month" rather than a single converted figure. Nothing is converted, and no exchange rate is ever fetched.
This is a deliberate trade, and it's the right one only if you value exactness over convenience. If what you want is one number to compare against your salary, TrialBell is the wrong tool for that particular job and Subby or Orbit will serve you better.
Why we haven't added conversion
Live rates would mean the app making network requests, which is the one thing it currently never does. That's a meaningful change to a privacy promise in exchange for a number that would still be an approximation. If we ever add it, it'll be opt-in and it'll say plainly which rate it used and when.
If you're stuck with mixed currencies
- Track in the currency you're billed in. Recording a converted amount bakes in a rate from the day you typed it, which then quietly goes stale.
- Watch the foreign-transaction fees. On a card that charges them, a $10 subscription can cost meaningfully more than the exchange rate implies — that's a real cost no tracker shows you.
- Check whether the service bills in your currency. Many let you pick a billing region, which removes the problem entirely.
One list, kept current
TrialBell tracks every trial, subscription and bill on your iPhone, works out the cancel-by date, and reminds you before each renewal. No bank connection, no account. Free for 3 subscriptions; Pro is a one-time $19.99.
Coming soon to theApp StoreFrequently asked
Which subscription tracker handles multiple currencies?
It depends what you want. Subby and Orbit both advertise multi-currency conversion into a single figure, based on their public App Store listings. TrialBell takes the other approach: it keeps each subscription in its own currency and shows separate totals per currency rather than converting.
Does TrialBell convert currencies?
No. Each subscription keeps its own currency, and monthly and yearly totals are grouped by currency and displayed side by side. Nothing is converted and no exchange rate is fetched.
Should I record subscriptions in the original currency or my own?
The original. If you record a converted amount, you've frozen an exchange rate from the day you typed it, and it goes stale without you noticing.
Written by the TrialBell team and updated 29 July 2026. Where this guide describes another app, the detail comes from that app's public App Store listing on the date shown.