Replace your SaaS spreadsheet
Most finance leads track subscriptions in a Google Sheet until it stops working. Here's what breaks first, and what replaces it when it does.
TL;DR
- A SaaS spreadsheet works for about 10 subscriptions. Past that, the maintenance overhead outruns what the sheet tells you.
- CostLens is the closest thing to "your spreadsheet, but it sends reminders" — same manual-entry mental model, zero maintenance after each entry is in.
- If you want automated discovery or virtual cards, you want a different tool. This page is for the moment the spreadsheet stops being good enough.
Built for
- The founder-finance person running a 10–30 person startup on a Google Sheet
- The ops lead who inherited a "subscriptions" tab in a shared workbook
- A fractional CFO reconciling spreadsheets across three clients
- Anyone who can name a subscription they're still paying for and forgot about
The spreadsheet is fine until it isn't
A Google Sheet is a real subscription tracker for about 10 entries. You know what you pay for, you can eyeball totals, the tool is free. The trouble is not the sheet. The trouble is everything the sheet doesn't do.
- No reminders. Renewals sneak up unless someone watches a date column by hand. Calendar invites work for two subs, not twenty.
- It goes stale. The person who set up the sheet leaves, gets promoted, or forgets. Six months later half the entries are wrong and nobody trusts it.
- Duplicates are invisible. Two Notion workspaces on different emails, Slack Pro plus Slack Standard from a subsidiary — a sheet won't flag either until you look for it, and nobody looks.
- Unused subscriptions don't surface. You paid 18 months for a tool nobody opens because there's no column tracking last-used-at.
- Team access is a mess. Google Drive permissions, broken shares, read-only for the person who needs edit. Audit logs are nonexistent.
Same mental model, none of the chores
CostLens keeps the part of the spreadsheet that works (you add each subscription yourself, so the list only contains what you put in) and fixes the parts that don't. It doesn't read your bank. It doesn't scan your inbox. It doesn't require SSO. It watches the dates, flags the duplicates, and sends the reminders.
- Renewal alerts at 30, 15, 7, and 1 days before each charge — email, no action needed.
- Duplicate detection by vendor and category, so the second Notion workspace surfaces without anyone hunting for it.
- Built-in category taxonomy (Design, Comms, Engineering, Infrastructure, Productivity, and more) instead of whatever ad-hoc taxonomy the original sheet owner came up with.
- Per-category budget ceilings. Set $2k/mo for Engineering and get an email the month you cross 80%.
- CSV export for accounting handoff. Your data is never locked in — the ledger is the source, exports are the escape hatch.
- Up to 3 workspace members on Pro. No Google Drive permission gymnastics, no risk of a teammate deleting rows by accident.
Sheet to ledger, under half an hour
- Export the sheet.File → Download → CSV. This is your working copy. Don't delete the original until you're sure the migration took.
- Clean the obvious rows.Delete canceled subs. Deduplicate what looks like the same vendor twice. Five minutes of sanity-checking costs and cycles.
- Add each subscription in CostLens.Vendor, billing cycle, cost, owner. Most teams finish 20 entries in under 20 minutes. If your list is 50+, split it across two sittings.
- Set budget thresholds.Pick 2–3 categories that matter most (usually Engineering, Comms, Productivity) and set a monthly ceiling on each. You can add more later.
- Invite the team.Up to 3 members on Pro. Keep the old spreadsheet read-only for a month as a safety net, then archive it.
Email [email protected] with your CSV if you want a second pair of eyes on the migration. We'll look, not import for you.
Spreadsheet vs ledger
Feature comparison
Don't switch if you don't need to
If you're running 1–5 subscriptions and already check the sheet weekly, the sheet is probably fine. The math on tracker-vs-sheet starts tipping around 10 active subs, or sooner if you've had a renewal horror story in the last quarter. Our free tier covers 3 subscriptions — try it if you want to see the difference without spending anything.
Frequently asked
What if my spreadsheet is complicated — multiple tabs, formulas, VLOOKUPs?
If the sheet has calculated fields (like annual total from monthly cost, or renewal date from last payment plus cycle), CostLens computes those for you from the entry — you don't need the formulas anymore. Multiple tabs usually flatten to a single list. Email [email protected] with a CSV if you want a second pair of eyes on what should survive the migration.
Can I still use a spreadsheet for forecasts and scenarios?
Yes. CostLens has a built-in trends and forecasts view on Pro, but if you want to run a custom scenario (like "what happens to monthly spend if we cut 5 subs"), export to CSV from CostLens and do it in your sheet. They compose well — CostLens is the source of truth, the sheet is the scratchpad.
Will you add automated spreadsheet import?
Not in the short term. The manual-entry mental model is the product, and a one-click import would undermine it (you'd end up with whatever junk is in the sheet). What we do today: email [email protected] with your CSV and we'll help you migrate in one pass.
Is there actually a free plan?
Yes. Free covers 3 active subscriptions, 1 tracked domain, and 1 workspace member, with renewal reminders and the dashboard. No card, no trial expiry. Pro ($12/mo or $108/yr) removes the limits.
What about multi-currency?
You can enter subscriptions in different currencies; CostLens displays each in its native currency. We don't do live FX conversion — if you need a normalized total, CSV export and let your accounting tool handle it.
What if I'm running fewer than 10 subscriptions?
Honestly, a spreadsheet is probably still fine. The math on tracker-vs-sheet starts tipping around 10–15 active subs, sooner if you have a renewal horror story in your recent past. Free tier exists if you want to try CostLens without committing.
How do I move from the sheet to CostLens?
Five steps, under half an hour for 20 subscriptions. 1) Export the sheet to CSV. 2) Clean up obvious rows (deduplicate, remove canceled). 3) Paste each subscription into CostLens — vendor, cycle, cost, owner. 4) Set budget thresholds per category. 5) Invite teammates. Keep the sheet as a reference for a month in case you miss something, then archive it.