Stripe's dashboard shows a top-line MRR and stops there. The tools that show what actually moved — new, expanded, churned, reactivated — start at $49–250 every month. This kit is different: an offline analyzer that turns your subscription export into the full waterfall, churn rates and cohorts, plus the cancel-survey, dunning sequence and digest templates that plug the leaks. One payment of ฿990 — then nothing, forever.
Get the kit — ฿990One zip: a standard-library Python analyzer, SQL queries, an offline calculator, and the retention templates the $250/mo tools gate behind plans. No install, no account, no monthly fee.
One Python script (stdlib only) reads your subscriptions CSV and computes new / reactivation / expansion / contraction / churned, logo and revenue churn, ARPU and cohort retention — per currency. It writes a summary, a SQLite DB and next month's snapshot.
A revenue tool with a hidden formula is a liability. The kit ships a one-page definitions file plus a 15-minute reconciliation procedure against your processor's dashboard — and a checklist for the 8 usual mismatch causes.
Quick ratio per month, your biggest churned accounts, subscriptions that died under 90 days (onboarding problems), retention matrix, currency exposure, annual-plan share. Run them on the included SQLite DB or adapt to your warehouse.
An offline HTML calculator (EN/TH/DE/JA): 12-month baseline with flat-churn assumptions stated out loud, and the money value of cutting churn by one point — the number that tells you if retention is even your problem.
The 12 cancellation reasons with follow-up questions and which save-offer fits each — plus a five-email payment-recovery sequence (pre-dunning to win-back) with schedule and the rules that make dunning work.
Mapping guide for each processor's export, a daily-digest email skeleton in EN/DE/JA, and your own benchmark tracker — because vendor-published "median churn" is marketing until proven otherwise.
It is offline and read-only on purpose. You export a CSV; the analyzer reads it. No OAuth scope over your billing data, no account to breach, nothing to renew. If your business data must stay on your machine, it does.
It is batch, not real-time. Numbers move when you export, not live. Expansion and contraction need two monthly snapshots — one export cannot see upgrades honestly, and this kit will not fake them. The docs say exactly what each number can and cannot know.
It makes you reconcile before it lets you trust it. The included procedure matches the analyzer's MRR against your processor's dashboard before you act on anything. A tool that sells "numbers you can trust" has no business being vague about a mismatch.
Three steps from zip to a decision you can defend.
Stripe: Dashboard → Billing → export. Paddle, Lemon Squeezy, Polar: the mapping guide shows which columns map where. Selling through two processors? Combine the CSVs — per-currency totals stay honest.
One command produces your waterfall, churn rates, cohorts and SQLite DB. Then the 15-minute reconciliation makes the top line match your processor's dashboard — before you trust any of it.
Install the cancel survey, switch on the dunning sequence, set up the digest email. The 14-day playbook walks you to your first shipped fix — the only thing that ever actually moved churn.
Published prices from the vendors' own pricing pages, checked September 2026. The kit is not a dashboard and does not replace them — it covers the workflow they gate behind monthly plans, once.
| Tool | Published price (Sep 2026) | What it doesn't cover for you |
|---|---|---|
| Baremetrics | from $49/mo (annual) · churn add-on +$129/mo | Stripe-focused; Paddle / Lemon Squeezy / Polar not covered |
| ChartMogul | $1,188–14,388/yr, annual contract | Free tier ends at $120K ARR; contract required after |
| Churnkey | from $250/mo (billed yearly) | Retention flows only; analytics priced separately |
| Paddle Retain | from $500/mo flat | Paddle billing only — no Stripe side of your mix |
| Sub Analytics Kit | ฿990 once (~US$26) | No dashboard — a workflow: analyze, reconcile, survey, dunning, digest |
Fair comparison note: those are hosted products with live sync; this kit is an offline workflow with no dashboard. If you want a hosted dashboard and can pay monthly, buy one of those. If you want the numbers and the leak-plugging workflow for a one-time price, this is that.
No monthly plan, no per-processor fee, no seat count.
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No. The kit reads a CSV you export from your processor's dashboard. There is no OAuth, no API key, no network call in any file — which is exactly why there is nothing to leak, revoke or pay monthly for.
Any processor whose subscriptions you can export and map to the kit's simple CSV columns: Stripe, Paddle, Lemon Squeezy and Polar all have documented mappings in the kit. Multiple processors? Merge the exports — MRR stays per-currency, and a USD-converted total is produced only when you supply a rate for every currency present.
No — and that's the point. The kit is an analyzer script, SQL queries, an offline calculator and copy-ready retention templates. You get the numbers and the workflow; you don't get another subscription to remember to cancel.
Every metric has a published definition (one page), and the kit ships a 15-minute reconciliation procedure against your processor's dashboard. If the top line doesn't match, an 8-item checklist finds the usual causes (cents vs major units, trials, taxes, cancellation timing) before you make any decision.
Python 3.8 or newer (standard library only — nothing to pip install) and any browser for the calculator. The SQL queries run on the SQLite database the analyzer produces, using any sqlite3 client.
Updates to the v1.x series are free — you buy once. A hypothetical v2 with a new architecture, if it ever happens, would be a separate product.
14-day refund: reply to your purchase receipt, no questions asked, no form to fill. You bought a file set — if it doesn't earn its ฿990 back in the first decision it improves, we'd rather return your money than your regret.
One export, one command, one page of definitions you can hold yourself to.
Get Sub Analytics Kit — ฿990 one-time