Free tools that do the maths
Seven calculators for the money questions behind every software purchase. No account, no tracking of what you type: everything runs in your browser, and saved lists stay on your device.
Subscription audit
List every recurring charge, convert it to a yearly figure, and see how much the rarely used ones cost you. Export to CSV.
Lifetime deal calculator
Break-even month plus a risk-adjusted value that accounts for products that change or shut down.
Deal checker
Eight quick questions score any offer from 0 to 100 and list its red flags.
Annual vs monthly
Find the break-even month and the expected cost of each option, based on how likely you are to keep using the app.
Family plan splitter
Cost per person on a family plan, and how many active users it takes to beat individual plans.
Perk finder
Tell us who you are and what you need. Get the student, startup, nonprofit and everyday programmes that fit.
Price watchlist
Track apps you want with a target price. Saved in your browser, exportable, and linked to email alerts if you want them.
Sale calendar
Black Friday, Steam seasonal sales, back-to-school and more, with a live countdown to the next fixed date.
Site search
Search every deal, free alternative, guide and tool on App.Deals instantly.
Why calculators beat percentages
A percentage only tells you how a price compares with another price the seller chose. The questions that decide whether you save money are different: how long you will really use the product, what it costs per year after the introductory period, and whether a free option already does the job. Each tool here answers one of those questions with your own numbers.
Use the deal checker for any offer, the lifetime deal calculator before any pay-once purchase, and run the subscription audit every quarter. Together they take less time than one cancelled subscription saves.