This tool helps calculate gross margin or cost markup for sales and purchasing. It allows users to input a target percentage and either a selling price or landed cost to determine the corresponding unknown value.
EZ Negotiator by John M Ganster Jr



7+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our john m ganster jr list covers 7+ iPhone apps updated through September 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 5.0★ (3) | No | No | May 2026 | ||
| 2 | Free | — | No | No | Jul 2026 | ||
| 3 | Free | 5.0★ (4) | No | Yes | Jul 2026 | ||
| 4 | Free | — | No | No | May 2026 | ||
| 5 | Free | — | No | No | May 2026 | ||
| 6 | Free | 4.2★ (131) | No | Yes | Sep 2026 | ||
| 7 | Free | 4.8★ (22) | Yes | No | Aug 2026 |



This tool helps calculate gross margin or cost markup for sales and purchasing. It allows users to input a target percentage and either a selling price or landed cost to determine the corresponding unknown value.











This app provides clear, sourced explanations of federal and state legislation, free from partisan bias. It allows users to compare news coverage, track local representatives, and see public opinion on bills.