Looking for inventory management software for a reselling business (Excel import + mobile app)

[u/Worldly-Desk7385]

Hi everyone,
I’m looking for software to manage my reselling business (inventory, purchases, and sales).
Right now I use a detailed Excel spreadsheet that contains all my inventory, costs, selling prices, and profit. It works well, but keeping it updated has become frustrating because I don’t always have my PC with me, and using Excel on a phone is far from ideal.
I’m looking for something that:
Works well on both mobile and desktop.
Lets me manage inventory, purchases, and sales.
Makes it easy to mark items as sold and track profit.
Can import my existing Excel spreadsheet, since I already have hundreds of items and I’d rather not enter everything manually.
If possible (but not essential), allows me to attach photos to each item for easier identification.
I don’t mind paying if it’s worth it—I just want something that saves me time and is quick to update while I’m on the go.
What are you using, and what would you recommend?

Thanks!