LOCAL FILES. REAL POSSIBILITIES.

Subscription cost calculator

Compare recurring per-seat costs, annualized totals and supplied next-charge dates locally.

YOUR WORKSPACEProcessed on your device

Compare per-seat prices in one currency. Annualized estimates use 12 monthly, 4 quarterly or 52 weekly charges; an actual calendar year may differ for weekly billing.

Subscription list title

Currency code

Subscription 1

Subscription name 1

Price per seat per charge 1

Seats 1

Billing cycle 1

Next charge date 1Optional. Enter the actual next date; it is not calculated automatically.

Calendar events are all-day entries for dates you supplied. They do not repeat, send notifications from Justility or cancel a subscription. Re-importing the calendar may create duplicates. No bank connections or exchange-rate conversion.

Nothing is saved automatically. JSON backups are readable, unencrypted files. Export before closing. PDFs support Latin, Greek and Cyrillic text.

Import JSON backup

Processed on your device. Your files are never uploaded by Justility.

How privacy works

How it works

Enter a per-seat price, seat count and billing cycle for each subscription. Calculate monthly equivalents and annual estimates, then add actual next-charge dates if you want calendar exports.

Supported formats

Up to 100 subscriptions; one currency. CSV, PDF, JSON and all-day ICS calendar exports. Dates use Gregorian years 0001–9998.

Good to know

No live prices, taxes, prorating or currency conversion. Annualization uses 12 monthly, 4 quarterly or 52 weekly charges; a calendar year can have a different number of weekly payments. Calendar exports contain single entered dates, without recurrence or notifications.

Worked example

Before

Two seats at 12.00 per month, plus a 24.00 annual domain

After

26.00 monthly equivalent and 312.00 annual estimate

The annual domain contributes 2.00 per month. Monthly equivalents are estimates, not a prediction of the charge total in each calendar month.

Separate equivalents from actual due dates

Enter the next-charge date from your provider. The calculator does not advance old dates or determine renewal rules. Aggregate monthly totals are rounded after summing annual amounts, so displayed rounded rows can differ slightly from their sum.

Shared expense splitter

Troubleshooting

Why does a weekly price not equal four times that price per month?

The estimate uses 52 charges per year divided by 12 months, rather than assuming every month is four weeks long.

Common questions

Will exporting a calendar cancel or manage my subscription?

No. Importing the ICS only adds the entered dates to your calendar. Re-importing may create duplicates. Cancellation and renewal changes happen with the provider.

Can I use this without an internet connection?

Yes, after you prepare this tool from Offline help and the browser retains its assets. Installation is optional. All processing dependencies are bundled locally.