"Reselling app" can mean several different kinds of tool: a crosslister that posts one item to many marketplaces, a profit and inventory tracker built around eBay, eBay's own free research tools, or a spreadsheet. This page sorts the common choices into those groups and lists what each one says about itself, including the marketplaces it supports.
Free to start, with a 14-day Pro trial while Strooply is in beta. No credit card needed. Get the app
Start with the job. If you list the same item on several marketplaces, a crosslister is built for that. If you sell mainly on eBay and want your real profit, fees, and records in one place, an eBay-focused tracker fits. If you only need to study what sells, eBay's own Product research is free to use with Seller Hub access. Strooply is an eBay-only app, so sellers who spread listings across many marketplaces may prefer a crosslister. Strooply publishes this page and is one of the products listed.
Vendoo, List Perfectly, and Crosslist let you create a listing once and post it to several marketplaces, then mark it sold or delist it elsewhere when it sells. Vendoo and List Perfectly name eBay alongside marketplaces such as Poshmark and Mercari on their pricing pages.[1][2] Crosslist says it supports 11+ marketplaces.[3]
Strooply, Flipwise, SellerHound, and Flippd describe tracking inventory, fees, and profit.[S2][4][6][8] They differ in how much they do before and after the sale, and in which platforms they cover.
Seller Hub and Product research sit inside your eBay account. Product research shows sales trends and average sales prices from eBay's own data.[9]
A spreadsheet costs nothing to start and you control every column, but you enter and reconcile the numbers yourself. See the eBay sales spreadsheet template or the eBay fee and profit calculator for a quick per-item check.
Strooply is listed first because Strooply publishes this page. The rest are grouped by kind of tool, in no particular order within each group.
| Product | Kind of tool | What it does | Marketplaces | Apps | Price |
|---|---|---|---|---|---|
| Strooply | eBay-focused research, listing, and profit app | Photo scan with live eBay comps and a sold estimate, AI eBay listing drafts, publishing through eBay's official API, inventory, true net profit, sourcing trips, mileage, and receipt scanning[S2][S3] | eBay | iOS, Android, and web[S3] | Free plan with no credit card, then $12.99/mo (Starter), $29.99/mo (Pro), $79.99/mo (Team)[S1] |
| Vendoo | Crosslister | Crossposting, sale detection and auto delisting, delist and relist, listing templates, inventory management, and profit tracking and analytics; AI Listing Enhancement starts on its Growth plan[1] | 10+ marketplaces; sale detection is listed for Poshmark, eBay, Mercari, Depop, Whatnot, and Etsy[1] | iOS and Android[1] | No free plan; 14-day free trial, then $12.49, $24.99, or $49.99 per month billed yearly, with unlimited items on each; monthly billing prices are not confirmed on the page version we read[1] |
| List Perfectly | Crosslister | Crosslisting, an AI listing assistant, barcode scanning, delist and relist, bulk tools, eBay pricing lookup, and sales analytics on higher plans[2] | Crosslists to all of its supported marketplaces and names eBay, Poshmark, and Mercari; a separate "lite" group, including Vinted, does not support automatic sale detection[2] | The Simple plan is described as mobile friendly; a dedicated app is not described on the pricing page[2] | No free plan listed; $29/mo (Simple), $49/mo (Business), $69/mo (Pro), $99+/mo (Pro Plus)[2] |
| Crosslist | Crosslister | One universal listing form, autoposting, delist and relist, sales detection, bulk actions, and a background remover; AI features are a paid add-on[3] | 11+ marketplaces; which ones is not listed on the pricing page we read[3] | Mobile app, plus a unified dashboard[3] | No free plan; 20 free listings with a 3-day money-back guarantee, then $29.99/mo (Bronze) to $44.99/mo (Diamond) billed monthly; AI add-on $4.99/mo[3] |
| Flipwise | eBay profit, inventory, and automation tool | eBay sync, relisting and repricing automations, profit and margin reports, inventory, expenses, mileage, and tax reports[6] | eBay; sales from Amazon, Poshmark, Mercari, Etsy, or offline can be recorded alongside, and Flipwise says it is not a cross-listing tool[6] | Responsive web app; no native iOS or Android app[7] | Free under 25 listings, then $9.99 to $69.99 per month by store size (active listings plus items sold in the last 30 days)[5] |
| SellerHound | eBay sales, expense, and mileage tracker | Sales dashboard, inventory synced from eBay, bookkeeping, expense and mileage tracking, and profit and loss reports; bulk listing is mentioned in its release notes[8] | eBay[8] | iPhone only[8] | 7-day free trial, then $12.99 per month; a free plan is not described[8] |
| Flippd | Inventory, expense, and profit tracker | Inventory, sales and profit tracking, automatic platform fee math, reports, expenses, and mileage; eBay sync is a Pro feature[4] | Describes automatic platform fee math; the list of platforms is not stated on the pricing page we read[4] | iOS, Android, and web[4] | Free plan with 20 inventory items and no credit card; Pro is $99.99 per year (listed as $8.33 per month billed annually)[4] |
| eBay Product research (Terapeak) | eBay's own research tool | Sales trends, average sales price, sold price range, and shipping costs for products and categories[9] | Data from eBay's marketplaces for the last 3 years[9] | Seller Hub Research tab and eBay's mobile apps[9] | Available to sellers with Seller Hub access; no separate fee is described on the page[9] |
A fit if: You sell mainly on eBay and want one phone app from the thrift aisle to the tax summary. Strooply does not list on other marketplaces, so it is a weaker fit if most of your sales happen elsewhere.
A fit if: You sell on several marketplaces and want unlimited items on every paid plan.[1]
A fit if: You crosslist heavily and want a barcode scanner and eBay pricing lookup inside the crosslister.[2]
A fit if: You want a crosslister with several price steps based on how many new listings you add each month.[3]
A fit if: You run an eBay store and want automatic relisting and repricing along with bookkeeping, and you are fine using a web app.[6][7]
A fit if: You use an iPhone, sell on eBay, and mostly want sales, expense, and mileage tracking at one monthly price.[8]
A fit if: You want a lower-priced inventory and expense tracker with a free tier to try first.[4]
A fit if: You want to study demand for a product or category using eBay's own data before you buy.[9]
For the numbers behind a single item, the eBay fee and profit calculator shows fees and profit for a sale, the eBay profit tracker follows profit across every item, and eBay inventory management covers keeping track of what you own and where it is.
A crosslister helps you create listings and post them to several marketplaces, then keeps them in sync when something sells. Vendoo, List Perfectly, and Crosslist work this way.[1][2][3] A profit tracker focuses on what you paid, what fees you were charged, and what you kept, which is the job described by Flipwise, SellerHound, Flippd, and Strooply.[4][6][8] Some products blur the line, so read what each one describes.
Several products here describe a free option. Flippd lists a free plan with 20 inventory items, and Flipwise lists stores under 25 listings as free.[4][5] Strooply has a free plan with no credit card.[S1] eBay's Product research is available to sellers with Seller Hub access.[9] Free plans have limits, so check what is capped before you rely on one.
No. Strooply is built for eBay only.[S2] If you list the same items on Poshmark, Mercari, or similar sites, a crosslister is designed for that, and some trackers here can record sales from other platforms.[2][6]
A spreadsheet can be enough when you sell a small number of items and are willing to enter fees, shipping, and costs yourself. An app helps more as volume grows because it can pull sales from eBay for you. You can start with the eBay sales spreadsheet template and move to an app later.
Strooply is an eBay reseller app, and people searching for a reselling app are often comparing tools like these. We list what each product says about itself, cite it, and say plainly when something is not described. Details can change, so check each product's own page before you decide.
Last verified October 25, 2026. Spot an error? Email zach@strooply.com and we will correct it.
Strooply is an app for eBay resellers that identifies items from photos, shows live comps and sold-price estimates, drafts eBay listings for your review, and tracks costs and profit.
Free to start, with a 14-day Pro trial while Strooply is in beta. No credit card needed.