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



11+ iOS apps & games curated and reviewed
From beginner-friendly picks to power-user tools, our john m ganster jr list covers 11+ iPhone apps and games updated through October 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 | 4.3★ (257K) | Yes | No | Oct 2026 | ||
| 3 | Free | — | No | No | Oct 2026 | ||
| 4 | Free | 4.6★ (3.9M) | Yes | Yes | Oct 2026 | ||
| 5 | Free | 5.0★ (4) | No | Yes | Jul 2026 | ||
| 6 | Free | — | No | No | May 2026 | ||
| 7 | Free | — | No | No | May 2026 | ||
| 8 | Free | 4.2★ (131) | No | Yes | Oct 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.





Experience a rhythm-based action platformer where you must jump and fly through dangerous levels filled with obstacles. Master simple one-touch gameplay to overcome challenges and unlock customization options for your character. Practice your skills to conquer increasingly difficult stages.




