Small, honest software for people who run their own shops.
Plainsman Software is an independent software company in Lake Saint Louis, Missouri. We build focused tools that do one job well and tell you the truth about your numbers.
What we make
MarginMark
A Chrome extension for TikTok Shop sellers that shows the real profit on every product, after TikTok's fees, your costs and creator commission.
Contact
General
MarginMark support
Plainsman Software
1200 Lake Saint Louis Blvd #1089
Lake Saint Louis, MO 63367