payback

This library parses REWE eBons into JS objects

moneymoney extension for payback accounts

Laravel application to organise daily food orders in a team.

Telegram bot that uses the reverse-engineered API of Payback and DeutschlandCard, german coupon systems, to periodically activate all available coupons.

Dieses Userscript automatisiert das Einlösen von Payback-Coupons. Es sucht alle unaktivierten Coupons auf der Webseite, klickt sie gleichzeitig an und lädt die Seite neu. Der Vorgang wiederholt sich automatisch bis zu dreimal, um auch dynamisch nachladende Coupons restlos zu erfassen. So sparst du dir lästiges, manuelles Klicken!

Alle deutschen Supermarkt-Bonusprogramme in einer Android-App. Privatprojekt.

Chrome Extension zum automatischen Aktivieren aller Payback Coupons

One-click Windows Playwright automation to activate Payback coupons with persistent local session support

Brand-agnostic prestige fragrance GTM toolkit—LTV on gross margin, CAC payback, promo economics, Prestige Protection Index, Markdown/HTML reports + Flask preview.

Shows PAYBACK.at points and eCoupons for the current website (Austria)

Browser LTV and ROAS modeler for mobile game UA: fits a retention curve to D1 to D30, projects LTV and ROAS to D720, finds the payback day, and solves the early ROAS needed to break even.

A Chrome extension that finds PAYBACK coupons for the store you’re visiting, with an animated fox mascot, coupon sidebar, and optional automatic activation.

Marketing budget allocation simulator for channel mix planning, CAC, ROI, payback, revenue forecasting, contribution analysis, and growth trade-off recommendations.

CAC, LTV, payback and contribution margin by acquisition channel for an online retailer (simulated e-commerce data), in DuckDB SQL, with a client dashboard