Profit Margin: Markup & ROI

Work out your profit margin in seconds — then find out what price you actually need to charge.

SUBSCRIPTION REQUIRED
Profit Margin is a paid app. A weekly or yearly subscription — or the one-time lifetime unlock — is required to use it. There is no free version and no free trial. You choose a plan when you first open the app, and everything described below is included in every plan.

Most margin calculators stop at one percentage. This one carries the number forward: 19 linked business calculators, a saved history of every figure you ran, side-by-side comparison of two scenarios, and what-if sliders that show what happens to profit when cost or price moves. Everything runs on your device, with no account and no internet connection.

WHAT YOU GET
- Gross, net, sales and operating margin answered on one screen, with the profit amount shown next to the percentage
- The selling price that hits your target markup, with sales tax or discount already folded in
- Break-even units and break-even revenue, charted, so you know how many you must sell before you earn anything
- ROI, annual profit, cash flow, depreciation, loan payment and business valuation without opening a spreadsheet
- Every calculation saved automatically, filterable by type and date, with usage and weekly trend charts
- Reusable templates so a recurring product, client or deal reloads with one tap instead of retyping figures
- Side-by-side scenario comparison, what-if sliders, the analytics and overview screens, and export and share

PERFECT FOR
- Shop owners and resellers pricing stock before they buy it
- Freelancers and consultants checking that a quote still leaves a profit
- Ecommerce and market sellers testing fee, cost and discount changes
- Students and new founders learning margin, markup and break-even properly

WHY NOT JUST USE A SPREADSHEET
Because a spreadsheet needs a laptop, a formula you have to remember, and a file you have to find again. This opens on your phone at the counter, picks the right formula for you, saves the answer, and lets you compare it against last week's numbers. The built-in Learn section shows every formula with a worked example, so you can check the math instead of trusting it blindly.

PRIVACY
No account, no sign-up, no ads, no analytics servers. Calculations, templates and history are stored only on your iPhone.

PLANS AND PRICING
Choose a weekly plan, a yearly plan, or a one-time lifetime purchase — the lifetime option is a single payment with nothing to renew. Prices are shown in the app before you buy. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period; you can manage or cancel them in your Apple Account settings.

Subscribe, open the Gross Margin calculator, enter your cost and your price, and see exactly what you keep.

Terms of Use (EULA): https://web-levi.web.app/terms
Privacy Policy: https://web-levi.web.app/privacy-policy
Questions? tphuc.work@gmail.com