by SubTrack (LX AI)

Last updated: 2026-09-16

How to use SubTrack

Open SubTrack, provide the required inputs, run Demo to preview the workflow, then switch off Demo when a live key is configured.

See where your subscriptions go

Decision-support only — confirm before you publish or act.

Getting started with SubTrack

I built SubTrack to give you a fast view of recurring charges without asking for an account. The tool works entirely in the browser and stores nothing on a server unless you choose to save a copy locally.

What you need to begin

Open the page and find the large text box labelled “Enter subscriptions”. Type each entry on its own line using the pattern: name, amount, frequency. Use a comma to separate the three fields and do not add extra spaces unless they are part of the name.

Example entry

Spotify, 9.99, monthly

If you bill yearly, write the yearly amount and set frequency to yearly, like Adobe Suite, 59.99, yearly.

Defining your subscription list

Once you have typed your list, the page instantly parses each line and shows a preview table below the input box. This preview helps you catch formatting mistakes before you run any calculation.

How the preview works

Correct any line that shows a warning. You can edit the text directly in the box; the preview updates as you type.

Deleting an entry

To remove a line, simply delete the whole line from the text box and press Enter. The preview will drop that row immediately.

Saving a copy for later

If you want to keep the list outside the tool, click the “Copy list” button that appears above the preview. The button places the exact text you entered into your clipboard, ready to paste into a note‑taking app or a file.

Running Demo mode to preview the workflow

Demo mode uses a fixed set of example data so you can see every step without entering your own numbers. This is useful when you are learning the interface or when you want to show a colleague how SubTrack works.

Activating Demo

Find the toggle labelled “Demo mode” near the top of the page and switch it on. The input box will be replaced with a read‑only list of sample subscriptions.

What you see in Demo

Run the calculation by pressing the “Calculate” button. The numbers appear instantly; there is no round‑trip to a server.

Switching out of Demo

When you are ready to work with your own data, toggle Demo off. The page clears the sample list and returns to an empty input box, ready for your entries.

Switching to live mode with an API key

Live mode adds an optional AI‑powered review step that can highlight unusual charges or suggest subscriptions you might have forgotten. This step only runs when you provide a valid API key for the language model service.

Where to enter the key

Below the input box you will find a field labelled “API key”. Paste the key you obtained from your provider and press “Save key”. The key is stored only in the browser’s local storage and is never sent to any third‑party server.

What the AI does

If you leave the API key field empty, the tool skips the AI step and works exactly as in Demo mode, but with your own data.

Removing the key

To delete the stored key, open the field, clear the text, and press “Save key” again. The local storage entry is removed.

Interpreting outputs: totals and top cuts

After you press “Calculate”, the page shows three result blocks: monthly total, yearly total, and a list of the top three subscriptions you could consider cutting. These numbers are derived from simple arithmetic and, if an API key is present, from the AI comments.

How totals are calculated

How the top cuts are chosen

One table showing a sample calculation

Subscription Amount Frequency Monthly equivalent
Streaming A 12.99 monthly 12.99
Streaming B 119.88 yearly 9.99
Fitness Club 45.00 monthly 45.00
Software Suite 179.90 yearly 14.99

In the example above the monthly total is 12.99 + 9.99 + 45.00 + 14.99 = 82.97. The yearly total is 82.97 × 12 = 995.64. The top three by monthly equivalent are Fitness Club (45.00), Software Suite (14.99), and Streaming A (12.99).

Exporting and copying your list

Once you have reviewed the results, you may want to keep a record of the exact list you entered. SubTrack provides two ways to do that without leaving the page.

Copy list button

Directly above the preview table you will see a button labelled “Copy list”. Clicking it places the raw text you typed into the system clipboard. You can then paste it into a document, a spreadsheet, or a note‑taking app.

Download as file

If you prefer a file, click the “Download list” button that appears after you have entered at least one line. The button creates a plain‑text file with the name subscriptions.txt and triggers the browser’s save dialog. The file contains each entry on its own line, exactly as you typed it.

Using the copied list elsewhere

Because the format is simple — name, amount, frequency separated by commas — you can import the text into many tools. For example, paste it into a spreadsheet and use the “Text to columns” feature with a comma delimiter to get three separate columns for further analysis.

What this is NOT

I want to be clear about the limits of SubTrack so you know where your judgment is still required.

No guarantee of savings

The tool does not promise that cutting any of the suggested subscriptions will save you a specific amount of money. It only shows where money is currently going.

Not a replacement for bill review

You should still check each provider’s website or your bank statement to confirm the amount and frequency before taking any action.

No 100 % accuracy in AI flags

When you provide an API key, the AI may highlight a line that is actually fine, or it may miss a real issue. Treat any comment as a hint, not a fact.

Does not store your data on a server

All calculations happen in the browser. If you close the tab without copying or downloading, the list is gone.

Does not include SSO, Slack alerts, or bulk CSV import

Those features are not present in this build. Do not assume they exist based on marketing language you may have seen elsewhere.

Not a financial advisory service

SubTrack is a decision‑support aid. For major financial decisions, consult a qualified professional.

References

Frequently asked questions

What is SubTrack?

See where your subscriptions go

Who should use SubTrack?

Operators and builders who need a fast first draft or checklist from SubTrack.

Does it work without an API key?

Yes in explicit Demo mode. Live AI requires a configured key.

Does it guarantee outcomes?

No. Outputs are decision-support; you still review before publishing or acting.

Does it include SSO, Slack, or bulk CSV?

Only if those features are implemented in this product build — do not assume them from marketing copy.

Where does data go?

Runs may be stored locally under the product's .data/ boundary; treat demos as ephemeral.

References

Try SubTrack