Castor: know what your subscriptions cost, then pay less

Your subscriptions are ganging up on you.

That "free" trial?It ended three months ago.

That promo price?Gone. Nobody told you.

That annual plan?Renewed itself last week.

Castor keeps track, so you don't have to.

No spreadsheets. No connecting your bank.

Step 1

Streaming, music, phone, internet and apps. Type them in, or skip the typing with a photo or PDF of your bill.

Step 2

What you pay each month, your annual plans, and your all-in total for the year, in Canadian dollars.

Step 3

Tips when there's a cheaper way to pay, and reminders before trials end, promos expire, and plans renew.

Built to answer one question well: am I paying more than I need to?

Pay less

Duplicates and overlaps. Paying for the same service twice, or two services that do the same job.
Cheaper plans. A lower tier or a bundle that covers what you actually use.
Monthly vs annual. When switching to an annual plan would save you money.
Weekly price checks. We check prices every week and let you know in the app when a plan you have changes price.

Savings are estimates based on public prices. Your actual price may differ.

Never miss a date

Free trials. A reminder before the trial ends and the charges start.
Promo prices. Weeks of notice before "first 12 months" becomes full price, so you can negotiate, switch, or cancel in time.
Renewals. A nudge before annual plans renew, while you can still cancel.
Your calendar. Add any reminder to Google, Apple or Outlook with an alert set in advance.

We collect the minimum needed to do the job, and we tell you exactly why. Built in Canada, with your data stored in Canada.

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Stored in CanadaYour data lives on servers in Canada.
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No bank or card detailsWe never ask to connect your bank or for card numbers.
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Only what's neededSubscription names, prices, and dates. That's it.
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Your choiceDownload or delete your data at any time, right in the app.