Profit-aware ad spend for Shopify
Find your best-estimate ad spend for peak net profit.
Parable reads your real Shopify sales and ad data, fits a profit curve for your store, and shows your best estimate of the spend that maximises net profit, with its likely range.
Read-only. Parable will not change products, prices, or budgets. How we handle your data.
More ad spend does not mean more profit.
Early spend pays for itself. After a point, each extra dollar buys less back, and past the peak you are paying to lose money. The job is to find that peak and stay near it, not to chase revenue for its own sake.
Find the peak
See the spend level where net profit is highest, not just the level that grows revenue.
Know when to hold
Near the best estimate, small changes barely move profit. The graph shows when you are already there.
Cut what is burning
Past the best estimate, costs rise faster than revenue and every extra dollar shrinks profit. The graph shows the spend that is costing you money.
How it works
Three steps from connection to your best-estimate spend.
Connect your store
Link Shopify with Google Ads and Google Analytics. Every connection is read-only.
Parable models your profit curve
It fits a profit curve from your real sales and spend, accounting for COGS, tax, and seasonality.
Get your best-estimate spend
See where you sit on the curve, the spend where profit peaks with its likely range, and a bounded test step to move there.
24
Months of history synced on connect
12
Months of seasonality modelled
100%
Read-only access to your store
0
Changes made to your campaigns, ever
Why trust it
Profit-first, honest about what it knows, and safe by design.
Built on your real data
Estimates come from your own Shopify sales and ad spend, not generic benchmarks or industry averages.
Honest about uncertainty
Parable shows bands and flags rather than a false-precision single number, so you know how confident the model is.
Seasonality-aware
The model accounts for the way demand shifts across the year, so peaks are not mistaken for trends.
Read-only and safe
Parable recommends, it never spends. It will not change your products, prices, or budgets.
Simple pricing
Use the manual graph free, for as long as you like. Connect your store for live, fitted profit curves at $149/mo.
Manual graph
Use your own numbers to find the spend where profit peaks.
- Model spend, margin, and fixed costs by hand
- See where net profit peaks on your own curve
- Free with a Google sign-in
Connected
14-day free trial
Connect Shopify and your ad platforms for live, fitted profit curves.
- Profit curve fitted to your real data
- Best-estimate spend and a suggested test step
- Read-only Shopify and ad platform sync
- Uncertainty bands and seasonality adjustments
Common questions
Install from the Shopify App Store and approve read-only access. Shopify handles the connection, so there is no manual setup. Parable then imports your recent order and ad history, so your profit curve appears on first load. A store with little history may show a wider range until more data arrives. You can uninstall anytime, and request data deletion from the privacy policy. Questions: support@parableppm.com.
Parable connects read-only. From Shopify it reads your orders, products, and shop settings. From your ad and analytics platforms it reads spend and attribution. It uses these to fit your profit curve and never writes anything back: no changes to orders, products, prices, campaigns, budgets, ads, checkout, or themes. See our privacy policy for how data is stored and deleted.
No. Shopify plus Google Ads is enough to start. Add Google Analytics whenever you like for a more accurate picture.
ROAS optimises revenue. Parable optimises net profit after your costs, so it shows the spend where you actually keep the most money, and where the next dollar stops paying for itself.
Never. Parable is read-only and advisory. It shows your best-estimate spend and a suggested test step; every change stays in your hands.
Parable shows a profitable range with uncertainty bands rather than a single false-precision number, and it tells you when the data cannot yet confirm a move.
The manual graph is free with a Google sign-in, for as long as you like. Connecting your store for live, fitted curves is $149/mo, with a 14-day free trial.
See your best-estimate profit peak before you spend another dollar.
Connect your store, read-only, and let Parable show its best estimate of the spend that makes the most net profit.