Marjn ‑ Profit Calculator
- Pricing
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Free plan available. Free trial available.
- Rating
- 0.0 (0 Reviews)
- Developer
- Extensions Market
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See your true margin from real product costs and Meta ad spend. Ask Sidekick about your profit.
Marjn is a profit calculator that shows your true margin for the store and each product. It uses what each item really costs you, and once you connect Meta ads it counts your ad spend too. Set a landed cost for any product, see your margin on one dashboard, and ask Sidekick things like which products have the lowest margin, which may lose money after ads, or how much you can spend on ads and still profit. Marjn reads order amounts only and never stores customer names, emails or addresses.
- Ask Sidekick your profit questions and get real margin answers
- See your true margin for the whole store and for every product
- Set a landed cost per product and compare margin between periods
- Connect Meta ads to see profit after ads and the ad spend you can afford
- Find your lowest-margin products and get price increase suggestions
Languages
English
Works with
- meta ads
Categories
Marketing and sales
Visuals and reports
Financial reports
Automated data sync
Pricing
Choose the plan that best fits your business.
Free
Free
Features
- True margin from your product costs
- Ask Sidekick your profit questions
- Store-wide gross margin dashboard
- Margin by product breakdown
- Cost coverage tracking
Marjn Pro
$19 / month
Features
- Everything in Free
- Landed-cost overrides for every product
- Meta ad spend included in your margin
- Low-margin product alerts
- Ad-spend-adjusted profit in Sidekick
- Priority email support
- 30 Day trial
30-day free trial
All charges are billed in USD. Recurring and usage-based charges are billed every 30 days. See all pricing options
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Support
App support provided by Extensions Market.
Resources
Developer
Launched
September 9, 2026
Data access
This app needs access to the following data to work on your store. Learn why in the developer's privacy policy .
View customer data:
Device and activity data
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Device and activity data
Geolocation, IP address, browser and operating system
View staff and contributor data:
Store owner
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Store owner
Name, email address, phone number, physical address
View store data:
Products, orders
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View products
Inventory, products, collections
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View orders
All order history for the last 60 days
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